Title of Invention: Selected CGRP antagonists, processes for preparing them and their use as pharmaceutical compositions Abstract: The present invention relates to the CGRP-antagonists of general formula I wherein R1, R2, R3 and R4 are defined as in claim 1, the tautomers, the isomers, the diastereomers, the enantiomers, the hydrates thereof, the mixtures thereof and the salts thereof and the hydrates of the salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases, as well as those compounds of general formula I wherein one or more hydrogen atoms are replaced by deuterium, pharmaceutical compositions containing these compounds, their use and processes for preparing them. Detailed Description: Part general_description_paragraphs: The present invention relates to CGRP antagonists of general formula I wherein R1, R2, R3 and R4 are as herein defined, the tautomers, the isomers, the diastereomers, the enantiomers, the hydrates thereof, the mixtures thereof and the salts thereof and the hydrates of the salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases, as well as those compounds of general formula I wherein one or more hydrogen atoms are replaced by deuterium, pharmaceutical compositions containing these compounds, their use and processes for preparing them. Part PRIOR ART: CGRP antagonists for the treatment of migraine have already been described in International Patent Applications PCT/EP97/04862 and PCT/EP04/000087. Part DETAILED DESCRIPTION OF THE INVENTION: In the above general formula I in a first embodiment R1 denotes a group selected from wherein R1.1 denotes H or H3C—O—, R2 denotes a group of general formula II wherein R2.1 denotes HO, H3CO, H—C(O)—O or H3C—C(O)—O— and R2.2 denotes C1-2-alkyl or H3CO—, R3 denotes R4—C2-8-alkylene-NH—and R4 denotes H, H2N, C1-3-alkyl-NH, (C1-3-alkyl)2—N or C1-6-alkyl-O—C(O)—NH—, or R3 denotes a group of general formulae III wherein R3.2 denotes H or C1-3-alkyl, R3.3 denotes a free electron pair or an oxygen atom, R3.4 denotes H or C1-3-alkyl-, and R4 denotes H, C1-6-alkyl, H2N—C2-6-alkylene, C1-3-alkyl-NH—C2-6-alkylene, (C1-3-alkyl)2—N—C1-6-alkylene, C3-6-cycloalkyl-C1-3-alkylene, NH2, C1-3-alkyl-NH or (C1-3-alkyl)2—N, or R4 denotes a group selected from R4 denotes a group of general formulae IV wherein X denotes C and R4.1 denotes H, OH or C1-3-alkyl, or X denotes N and R4.1 denotes a free electron pair or an oxygen atom, Y denotes O, S, S(O), S(O)2, if X═N, or Y denotes S, S(O), S(O)2, if X═C, R4.2 denotes H or C1-3-alkyl, R4.3 denotes H or C1-3-alkyl, R4.4 denotes a free electron pair or, if R5.2 is not H or C1-3-alkyl-C(O)—, an oxygen atom, R5.1 denotes H, CN, OH, C1-3-alkyl, C1-3-alkyl-C(O)—O, C1-3-alkyl-O, R5.1,1—O—C(O), R 5.1.1—C(O)—C2-4-alkylene or R5.1,1—O—C(O)—C1-3-alkylene-O, R5.1.1 denotes H, C1-6-alkyl, H2N—C(O)—C1-3-alkylene, C1-3-alkyl-NH—C(O)—C1-3-alkylene, (C1-3-alkyl)2—N—C(O)—C1-3-alkylene or C1-3-alkyl-O—C(O)—O—C1-3-alkylene, or R5.2 denotes H, C1-3-alkyl, C3-6-cycloalkyl, C3-6-cycloalkyl-C1-3-alkylene, C1-3-alkyl-C(O), R5.2.1—C(O)—C1-3-alkylene or R5.2.2—C2-4-alkylene-O—C(O)—C1-3-alkylene, R5.2.1 denotes H, C1-6-alkyl, C1-6-alkyl-C(O)—O—C1-3-alkylene, C1-3-alkyl-O—C(O)—O—C1-3-alkylene, C3-7-cycloalkyl-O—C(O)—O—C1-3-alkylene, H2N—C(O)—C1-3-alkylene, C1-3-alkyl-NH—C(O)—C1-3-alkylene, (C1-3-alkyl)2—N—C(O)—C1-3-alkylene or R4.184.229.179—C(O)—C1-3-alkylene and R4.184.229.179 denotes a group selected from R5.2.1 denotes a group selected from R5.2.2 denotes H2N, C1-3-alkyl-NH, (C1-3-alkyl)2—N, C1-3-alkyl-O or C1-3-alkyl-O—C2-4-alkylene-O, or R5.2.2 denotes a group selected from with the proviso that R3 and R4 are not bound to one another simultaneously via an N atom, the tautomers, the diastereomers, the enantiomers, the hydrates, the mixtures thereof and the salts thereof and the hydrates of the salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases. A preferred first embodiment of the present invention comprises the compounds of the above general formula 1, wherein R1, R2, R3 and R4 are as hereinbefore defined in the first embodiment, with the proviso that the compounds (a) (R)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-[4-(1-methyl-piperidin-4-yl)-piperazin-1-yl]-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (b) (R)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-[4-(4-methyl-piperazin-1-yl)-piperidin-1-yl]-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylate, (c) (R)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-(1′-methyl -4,4′-bipiperidinyl-1-yl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (d) (R)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-2-(4-piperidin-4-yl-piperazin-1-yl)-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (e) (R)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-2-(4-piperazin-1-yl-piperidin-1-yl)-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (f) (R)-2-4,4′-bipiperidinyl-1-yl-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (g) (R)-2-1,4′-bipiperidinyl-1′-yl-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (h) (R)-2-(4-dimethylamino-piperidin-1-yl)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (i) (R)-1-(4-methoxy-3,5-dimethyl-benzyl)-2-[4-(1-methyl-piperidin-4-yl)-piperazin-1-yl]-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (k) (R)-1-(4-methoxy-3,5-dimethyl-benzyl)-2-[4-(4-methyl-piperazin-1-yl)-piperidin-1-yl]-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (k) (R)-1-(4-methoxy-3,5-dimethyl-benzyl)-2-(1′-methyl -4,4′-bipiperidinyl-1-yl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (l) (R)-1-(4-methoxy-3,5-dimethyl-benzyl)-2-oxo-2-(4-piperidin-4-yl-piperazin-1-yl)-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (m) (R)-1-(4-methoxy-3,5-dimethyl-benzyl)-2-oxo-2-(4-piperazin-1-yl-piperidin-1-yl)-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (n) (R)-2-4,4′-bipiperidinyl-1-yl-1-(4-methoxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (o) (R)-2-1,4′-bipiperidinyl-1′-yl-1-(4-methoxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (p) (R)-2-(4-dimethylamino-piperidin-1-yl)-1-(4-methoxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (q) (R)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-(4-morpholin-4-yl-piperidin-1-yl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (r) (R)-2-(4-cyclohexyl-piperazin-1-yl)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (s) (R)-2-(4.4-dimethyl-1,4′-bipiperidinyl-1′-yl)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (t) (R)-2-(4-hydroxy-1,4′-bipiperidinyl-1′-yl)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (u) (R)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-(4-hydroxy-4-methyl-1,4′-bipiperidinyl-1′-yl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (v) (R)-2-(4-ethyl-4-hydroxy-1,4′-bipiperidinyl-1′-yl)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (w) (R)-2-[4-(1,1-dioxo-1λ6-thiomorpholin-4-yl)-piperidin-1-yl]-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (x) (R)-2-(1′-ethoxycarbonylmethyl-4,4′-bipiperidinyl-1-yl)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (y) (R)-2-(1′-carboxymethyl-4,4′-bipiperidinyl-1-yl)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (z) (R)-2-[4-(4-ethoxycarbonylmethyl-piperazin-1-yl)-piperidin-1-yl]-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (aa) (R)-2-[4-(4-carboxymethyl-piperazin-1-yl)-piperidin-1-yl]-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (ab) (R)-2-[4-(1-ethoxycarbonylmethyl-piperidin-4-yl)-piperazin-1-yl]-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (ac) (R)-2-[4-(1-carboxymethyl-piperidin-4-yl)-piperazin-1-yl]-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (ad) (R)-2-[1′-(2-ethoxycarbonyl-ethyl)-4,4′-bipiperidinyl-1-yl]-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (ae) (R)-2-[1′-(2-carboxy-ethyl)-4,4′-bipiperidinyl-1-yl]-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (af) (R)-2-{4-[1-(2-ethoxycarbonyl-ethyl)-piperidin-4-yl]-piperazin-1-yl}-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (ag) (R)-2-{4-[1-(2-carboxy-ethyl)-piperidin-4-yl]-piperazin-1-yl}-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (ah) (R)-2-{4-[4-(2-ethoxycarbonyl-ethyl)-piperazin-1-yl]-piperidin-1-yl}-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (ai) (R)-2-{4-[4-(2-carboxy-ethyl)-piperazin-1-yl]-piperidin-1-yl}-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, are excluded from the scope of protection, the tautomers, the diastereomers, the enantiomers, the hydrates, the mixtures thereof and the salts thereof and the hydrates of the salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases. In the above general formula I in a second embodiment R1 denotes a group selected from wherein R1.1 denotes H or H3C—O—, R2 denotes a group of general formula II wherein R2.1 denotes HO, H3CO, H—C(O)—O or H3C—C(O)—O— and R2.2 denotes C1-2-alkyl or H3CO—, R3 denotes R4—C2-8-alkylene-NH— and R4 denotes H2N, C1-3-alkyl-NH or (C1-3-alkyl)2—N, C1-6-alkyl-O—C(O)—NH—, or R3 denotes a group of general formulae III wherein R3.2 denotes H, R3.3 denotes a free electron pair or an oxygen atom, R3.4 denotes H or C1-3-alkyl, and R4 denotes H, C1-6-alkyl, H2N—C2-6-alkylene, C1-3-alkyl-NH—C2-6-alkylene, (C1-3-alkyl)2—N—C1-6-alkylene, C3-6-cycloalkyl-C1-3-alkylene, H2N, C1-3-alkyl-NH or (C1-3-alkyl)2—N, or R4 denotes a group selected from R4 denotes a group of general formulae IV wherein X denotes C and R4.1 denotes H, OH, C1-3-alkyl or X denotes N and R4.1 denotes a free electron pair or an oxygen atom, Y denotes O, S, S(O), S(O)2, if X═N, or Y denotes S, S(O), S(O)2, if X═C, R4.2 denotes H, R4.3 denotes H or C1-3-alkyl, R4.4 denotes a free electron pair or, if R5.2 is not H or C1-3-alkyl-C(O)—, an oxygen atom, R5.1 denotes H, CN, OH, C1-3-alkyl, C1-3-alkyl-C(O)—O, C1-3-alkyl-O, R5.1,1—O—C(O), R 5.1.1—O—C(O)—C2-4-alkylene or R5.1,1—O—C(O)—C1-3-alkylene-O, R5.1.1 denotes H, C1-6-alkyl, H2N—C(O)—C1-3-alkylene, C1-3-alkyl-NH—C(O)—C1-3-alkylene, (C1-3-alkyl)2—N—C(O)—C1-3-alkylene or C1-3-alkyl-O—C(O)—O—C1-3-alkylene, R5.2 denotes H, C1-3-alkyl, C3-6-cycloalkyl, C3-6-cycloalkyl-C1-3-alkylene, C1-3-alkyl-C(O), R5.21—O—C(O)—C1-3-alkylene or R5.2.2—C2-4-alkylene-O—C(O)—C1-3-alkylene, R5.2.1 denotes H, C1-6-alkyl, C1-6-alkyl-C(O)—O—C1-3-alkylene, C1-3-alkyl-O—C(O)—O—C1-3-alkylene, C3-7-cycloalkyl-O—C(O)—O—C1-3-alkylene, H2N—C(O)—C1-3-alkylene, C1-3-alkyl-NH—C(O)—C1-3-alkylene, (C1-3-alkyl)2—N—C(O)—C1-3-alkylene or R4.184.229.179—C(O)—C1-3-alkylene and R4.184.229.179 denotes a group selected from R5.2.1 denotes a group selected from R5.2.2 denotes H2N, C1-3-alkyl-NH, (C1-3-alkyl)2—N, C1-3-alkyl-O or C1-3-alkyl-O—C2-4-alkylene-O, or R5.2.2 denotes a group selected from with the proviso that R3 and R4 are not bound to one another simultaneously via an N atom, the tautomers, the diastereomers, the enantiomers, the hydrates, the mixtures thereof and the salts thereof and the hydrates of the salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases. A third embodiment of the present invention comprises the compounds of the above general formula I, wherein R1 denotes a group selected from R2 denotes a group selected from R3 denotes R4—C2-8-alkylene-NH— and R4 denotes H, H2N, (C1-3-alkyl)2—N or C1-4-alkyl-O—C(O)—NH—, or R3 denotes a group selected from and R4 denotes H, C1-6-alkyl, (C1-3-alkyl)2—N—C1-6-alkylene, C3-6-cycloalkyl-C1-3-alkylene or (C1-3-alkyl)2—N, or R4 denotes a group selected from R4 denotes a group selected from wherein Y denotes O, S, S(O), S(O)2, R4.4 denotes a free electron pair or, if R5.2 is not H or C1-3-alkyl-C(O)—, an oxygen atom, R5.1 denotes H, CN, OH, C1-3-alkyl, C1-3-alkyl-C(O)—O, C1-3-alkyl-O, R5.1,1—O—C(O), R5.1,1—O—C(O)—C2-4-alkylene or R5.1,1—O—C(O)—C1-3-alkylene-O, R5.1.1 denotes H, C1-6-alkyl, H2N—C(O)—C1-3-alkylene, C1-3-alkyl-NH—C(O)—C1-3-alkylene, (C1-3-alkyl)2—N—C(O)—C1-3-alkylene or C1-3-alkyl-O—C(O)—O—C1-3-alkylene, R5.2 denotes H, C1-3-alkyl, cyclopropyl, cyclopropyl-methylene, C1-3-alkyl-C(O), R5.2.1—O—C(O)—C1-3-alkylene or R5.2.2—C2-4-alkylene-O—C(O)—C1-3-alkylene, R5.2.1 denotes H, C1-6-alkyl, C1-6-alkyl-C(O)—O—C1-3-alkylene, C1-3-alkyl-O—C(O)—O—C1-3-alkylene, (C1-3-alkyl)2—N—C(O)—C1-3-alkylene or R5.2.1,1—C(O)—C1-3-alkylene and R4.184.229.179 denotes a group selected from or R5.2.1 denotes a group selected from R5.2.2 denotes (C1-3-alkyl)2—N, C1-3-alkyl-O or C1-3-alkyl-O—C2-4-alkylene-O, or R5.2.2 denotes a group selected from with the proviso that R3 and R4 are not bound to one another simultaneously via an N atom, the tautomers, the diastereomers, the enantiomers, the hydrates, the mixtures thereof and the salts thereof and the hydrates of the salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases. A fourth embodiment of the present invention comprises the compounds of the above general formula I, wherein R1 denotes a group selected from R2 denotes a group selected from R3-R4 together denote a group selected from the tautomers, the diastereomers, the enantiomers, the hydrates, the mixtures thereof and the salts thereof and the hydrates of the salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases. A fifth embodiment of the present invention comprises the compounds of the above general formula I, wherein R1 denotes a group selected from R2 denotes a group selected from R3-R4 together denote a group selected from the tautomers, the diastereomers, the enantiomers, the hydrates, the mixtures thereof and the salts thereof and the hydrates of the salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases. A sixth embodiment of the present invention comprises the compounds of the above general formula I, wherein R1 denotes a group and R2, R3 and R4 are as hereinbefore defined in the first embodiment, the tautomers, the diastereomers, the enantiomers, the hydrates, the mixtures thereof and the salts thereof and the hydrates of the salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases. A seventh embodiment of the present invention comprises the compounds of the above general formula I, wherein R1 denotes a group and R2, R3 and R4 are as defined in the first embodiment hereinbefore, the tautomers, the diastereomers, the enantiomers, the hydrates, the mixtures thereof and the salts thereof and the hydrates of the salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases. An eighth embodiment of the present invention comprises the compounds of the above general formula I, wherein R1 denotes a group and R2, R3 and R4 are as defined in the first embodiment hereinbefore, with the proviso that the compounds (a) (R)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-[4-(1-methyl-piperidin-4-yl)-piperazin-1-yl]-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)- piperidine-1-carboxylate, (b) (R)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-[4-(4-methyl-piperazin-1-yl)-piperidin-1-yl]-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (c) (R)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-(1′-methyl -4,4′-bipiperidinyl-1-yl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (d) (R)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-2-(4-piperidin-4-yl-piperazin-1-yl)-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (e) (R)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-2-(4-piperazin-1-yl-piperidin-1-yl)-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (f) (R)-2-4,4′-bipiperidinyl-1-yl-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (g) (R)-2-1,4′-bipiperidinyl-1′-yl-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (h) (R)-2-(4-dimethylamino-piperidin-1-yl)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (i) (R)-1-(4-methoxy-3,5-dimethyl-benzyl)-2-[4-(1-methyl-piperidin-4-yl)-piperazin-1-yl]-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (j) (R)-1-(4-methoxy-3,5-dimethyl-benzyl)-2-[4-(4-methyl-piperazin-1-yl)-piperidin-1-yl]-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (k) (R)-1-(4-methoxy-3,5-dimethyl-benzyl)-2-(1′-methyl -4,4′-bipiperidinyl-1-yl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (l) (R)-1-(4-methoxy-3,5-dimethyl-benzyl)-2-oxo-2-(4-piperidin-4-yl-piperazin-1-yl)-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (m) (R)-1-(4-methoxy-3,5-dimethyl-benzyl)-2-oxo-2-(4-piperazin-1-yl-piperidin-1-yl)-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (n) (R)-2-4,4′-bipiperidinyl-1-yl-1-(4-methoxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (o) (R)-2-1,4′-bipiperidinyl-1′-yl-1-(4-methoxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (p) (R)-2-(4-dimethylamino-piperidin-1-yl)-1-(4-methoxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (q) (R)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-(4-morpholin-4-yl-piperidin-1-yl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (r) (R)-2-(4-cyclohexyl-piperazin-1-yl)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (s) (R)-2-(4.4-dimethyl-1,4′-bipiperidinyl-1′-yl)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (t) (R)-2-(4-hydroxy-1,4′-bipiperidinyl-1′-yl)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (u) (R)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-(4-hydroxy-4-methyl-1,4′-bipiperidinyl-1′-yl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (v) (R)-2-(4-ethyl-4-hydroxy-1,4′-bipiperidinyl-1′-yl)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (w) (R)-2-[4-(1,1-dioxo-1λ6-thiomorpholin-4-yl)-piperidin-1-yl]-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (x) (R)-2-(1′-ethoxycarbonylmethyl-4,4′-bipiperidinyl-1-yl)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (y) (R)-2-(1′-carboxymethyl-4,4′-bipiperidinyl-1-yl)-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (z) (R)-2-[4-(4-ethoxycarbonylmethyl-piperazin-1-yl)-piperidin-1-yl]-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (aa) (R)-2-[4-(4-carboxymethyl-piperazin-1-yl)-piperidin-1-yl]-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (ab) (R)-2-[4-(1-ethoxycarbonylmethyl-piperidin-4-yl)-piperazin-1-yl]-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (ac) (R)-2-[4-(1-carboxymethyl-piperidin-4-yl)-piperazin-1-yl]-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (ad) (R)-2-[1′-(2-ethoxycarbonyl-ethyl)-4,4′-bipiperidinyl-1-yl]-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (ae) (R)-2-[1′-(2-carboxy-ethyl)-4,4′-bipiperidinyl-1-yl]-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (af) (R)-2-{4-[1-(2-ethoxycarbonyl-ethyl)-piperidin-4-yl]-piperazin-1-yl}-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (ag) (R)-2-{4-[1-(2-carboxy-ethyl)-piperidin-4-yl]-piperazin-1-yl}-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (ah) (R)-2-{4-[4-(2-ethoxycarbonyl-ethyl)-piperazin-1-yl]-piperidin-1-yl}-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, (ai) (R)-2-{4-[4-(2-carboxy-ethyl)-piperazin-1-yl]-piperidin-1-yl}-1-(4-hydroxy-3,5-dimethyl-benzyl)-2-oxo-ethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate, are excluded from the scope of protection, the tautomers, the diastereomers, the enantiomers, the hydrates, the mixtures thereof and the salts thereof and the hydrates of the salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases. The following compounds are mentioned as examples of most particularly preferred compounds of the above general formula I: No. Structure (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15) (16) (17) (18) (19) (20) (21) (22) (23) (24) (25) (26) (27) (28) (29) (30) (31) (32) (33) (34) (35) (36) (37) (38) (39) (40) (41) (42) (43) (44) (45) (46) (47) (48) (49) (50) (51) (52) (53) (54) (55) (56) (57) (58) (59) (60) (61) (62) (63) (64) (65) (66) (67) (68) (69) (70) (71) (72) (73) (74) (75) (76) (77) (78) (79) (80) (81) (82) (83) (84) (85) (86) (87) (88) (89) (90) (91) (92) (93) (94) (95) (96) (97) (98) (99) (100) (101) (102) (103) (104) (105) (106) (107) (108) (109) (110) (111) (112) (113) (114) (115) (116) (117) (118) (119) (120) (121) (122) (123) (124) (125) (126) (127) (128) (129) (130) (131) (132) (133) (134) (135) (136) (137) (138) (139) (140) (141) (142) (143) (144) (145) (146) (147) (148) (149) (150) (151) (152) (153) (154) (155) (156) (157) (158) (159) (160) (161) (162) (163) (164) (165) (166) (167) (168) (169) (170) (171) (172) (173) (174) (175) (176) (177) (178) (179) (180) (181) (182) (183) (184) (185) (186) (187) (188) (189) (190) (191) (192) (193) (194) (195) (196) (197) (198) (199) (200) (201) (202) (203) (204) (205) (206) (207) (208) (209) (210) (211) (212) (213) (214) (215) (216) (217) (218) the tautomers, the diastereomers, the enantiomers, the hydrates, the mixtures thereof and the salts thereof and the hydrates of the salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases. Part Terms and Definitions Used: Unless otherwise stated, all the substituents are independent of one another. If for example there are a plurality of C1-6-alkyl groups as substituents in one group, in the case of three C1-6-alkyl substituents, independently of one another, one may represent methyl, one n-propyl and one tert-butyl. Within the scope of this application, in the definition of possible substituents, these may also be represented in the form of a structural formula. If present, an asterisk (*) in the structural formula of the substituent is to be understood as being the linking point to the rest of the molecule. The subject-matter of this invention also includes the compounds according to the invention, including the salts thereof, wherein one or more hydrogen atoms, for example one, two, three, four or five hydrogen atoms, are replaced by deuterium. By the term “C1-2-alkyl” (including those which are part of other groups) are meant alkyl groups with 1 or 2 carbon atoms, by the term “C1-3-alkyl” are meant branched and unbranched alkyl groups with 1 to 3 carbon atoms, and by the term “C1-6-alkyl” are meant branched and unbranched alkyl groups with 1 to 6 carbon atoms. Examples include: methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, sec-butyl, tert-butyl, n-pentyl, iso-pentyl, neo-pentyl or hexyl. The following abbreviations may optionally also be used for the above-mentioned groups: Me, Et, n-Pr, i-Pr, n-Bu, i-Bu, t-Bu, etc.. Unless stated otherwise, the definitions propyl, butyl, pentyl and hexyl include all the possible isomeric forms of the groups in question. Thus, for example, propyl includes n-propyl and iso-propyl, butyl includes iso-butyl, sec-butyl and tert-butyl etc.. By the term “C1-3-alkylene” (including those which are part of other groups) are meant branched and unbranched alkylene groups with 1 to 3 carbon atoms and by the term “C2-4-alkylene” are meant branched and unbranched alkylene groups with 2 to 4 carbon atoms, by the term “C1-6-alkylene” are meant branched and unbranched alkylene groups with 1 to 6 carbon atoms, by the term “C2-6-alkylene” are meant branched and unbranched alkylene groups with 2 to 6 carbon atoms, and by the term “C1-8-alkylene” are meant branched and unbranched alkylene groups with 1 to 8 carbon atoms. Examples include: methylene, ethylene, propylene, 1-methylethylene, butylene, 1-methylpropylene, 1,1-dimethylethylene, 1,2-dimethylethylene, pentylene, 1,1-dimethylpropylene, 2,2-dimethylpropylene, 1,2-dimethylpropylene, 1,3-dimethylpropylene, hexylene, heptylene or octylene. Unless stated otherwise, the definitions propylene, butylene, pentylene, hexylene, heptylene and octylene include all the possible isomeric forms with the same number of carbons. Thus, for example, propylene also includes 1-methylethylene and butylene includes 1-methylpropylene, 1,1-dimethylethylene, 1,2-dimethylethylene. It should also be mentioned that within the scope of the present invention the terms “alkylene” and “alkylenyl” are used synonymously. By the term “C3-6-cycloalkyl” (including those which are part of other groups) are meant cyclic alkyl groups with 3 to 6 carbon atoms and by the term “C3-7-cycloalkyl” are meant cyclic alkyl groups with 3 to 7 carbon atoms. Examples of these include: cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl or cycloheptyl. Unless otherwise stated, the cyclic alkyl groups may be substituted by one or more groups selected from among methyl, ethyl, iso-propyl, tert-butyl, hydroxy, fluorine, chlorine, bromine and iodine. Compounds of general formula I may have acid groups, mainly carboxyl groups, and/or basic groups such as e.g. amino functions. Compounds of general formula I may therefore be present as internal salts, as salts with pharmaceutically useable inorganic acids such as for example hydrobromic acid, phosphoric acid, nitric acid, hydrochloric acid, sulphuric acid, methanesulphonic acid, ethanesulphonic acid, benzenesulphonic acid, p-toluenesulphonic acid or organic acids such as for example malic acid, succinic acid, acetic acid, fumaric acid, maleic acid, mandelic acid, lactic acid, tartaric acid, citric acid or as salts with pharmaceutically useable bases such as alkali or alkaline earth metal hydroxides, e.g. sodium hydroxide or potassium hydroxide, or carbonates, ammonia, zinc or ammonium hydroxides or organic amines such as e.g. diethylamine, triethylamine, ethanolamine, diethanolamine, triethanolamine, cyclohexylamine, dicyclohexylamine, inter alia. The compounds according to the invention may be present as racemates, provided that they have only one chiral element, but may also be obtained as pure enantiomers, i.e. in the (R) or (S) form. Compounds which are present as racemates or in the (R) form are preferred. However, the application also includes the individual diastereomeric pairs of antipodes or mixtures thereof, which are obtained if there is more than one chiral element in the compounds of general formula I, as well as the individual optically active enantiomers of which the above-mentioned racemates are made up. The invention relates to the compounds in question, optionally in the form of the individual optical isomers, mixtures of the individual enantiomers or racemates, in the form of the tautomers as well as in the form of the free bases or the corresponding acid addition salts with pharmacologically acceptable acids—such as for example acid addition salts with hydrohalic acids—for example hydrochloric or hydrobromic acid—or organic acids—such as for example oxalic, fumaric, diglycolic or methanesulphonic acid. Part Methods of Preparation: The compounds of general formula I are prepared by methods known in principle. The following methods have proved particularly useful for preparing the compounds of general formula I according to the invention: (a) For preparing compounds of general formula I wherein all the groups are as hereinbefore defined: coupling a carboxylic acid of general formula V wherein R1 and R2 are as hereinbefore defined, with an amine of general formula VI H—R3-R4, wherein R3 and R4 are as hereinbefore defined, the linking taking place via the nitrogen atom of R3. Before the reaction is carried out any carboxylic acid functions, primary or secondary amino functions or hydroxy functions present in the groups of the amine of formula H—R3-R4 may be protected by conventional protective groups and after the reaction has taken place any protective groups used may be cleaved again using methods familiar to those skilled in the art. The coupling is preferably carried out using methods known from peptide chemistry (cf. e.g. Houben-Weyl, Methoden der Organischen Chemie, Vol. 15/2), for example using carbodiimides such as e.g. dicyclohexylcarbodiimide (DCC), diisopropyl carbodiimide (DIC) or ethyl-(3-dimethylaminopropyl)-carbodiimide, O-(1H-benzotriazol-1-yl)- N,N-N′,N′-tetramethyluronium hexafluorophosphate (HBTU) or tetrafluoroborate (TBTU) or 1H-benzotriazol-1-yl-oxy-tris-(dimethylamino)-phosphonium hexafluorophosphate (BOP). By adding 1-hydroxybenzotriazole (HOBt) or 3-hydroxy-4-oxo-3,4-dihydro-1,2,3-benzotriazine (HOOBt) the reaction speed can be increased. The couplings are normally carried out with equimolar amounts of the coupling components as well as the coupling reagent in solvents such as dichloromethane, tetrahydrofuran, acetonitrile, dimethyl formamide (DMF), dimethyl acetamide (DMA), N-methylpyrrolidone (NMP) or mixtures thereof and at temperatures between −30° C. and +30° C., preferably −20° C. and +25° C. If necessary, N-ethyl-diisopropylamine (Hünig base) is preferably used as an additional auxiliary base. The so-called “anhydride process” is used as a further coupling method for synthesising compounds of general formula I (cf. also: M. Bodanszky, “Peptide Chemistry”, Springer-Verlag 1988, p. 58-59; M. Bodanszky, “Principles of Peptide Synthesis”, Springer-Verlag 1984, p. 21-27). The Vaughan variant of the “mixed anhydride process” is preferred (J. R. Vaughan Jr., J. Amer. Chem. Soc. 73, 3547 (1951)), in which the mixed anhydride of the carboxylic acid of general formula V which is to be coupled and monoisobutyl carbonate is obtained, using isobutyl chlorocarbonate in the presence of bases such as 4-methylmorpholine or 4-ethylmorpholine. The preparation of this mixed anhydride and the coupling with the amines of general formula VI are carried out in a one-pot process, using the above-mentioned solvents and at temperatures between −20° C. and +25° C., preferably 0° C. and +25° C. (b) For preparing compounds of general formula I wherein all the groups are as hereinbefore defined: coupling a compound of general formula VII wherein R1 and R2 are as hereinbefore defined and Nu denotes a leaving group, for example a halogen atom, such as the chlorine, bromine or iodine atom, an alkylsulphonyloxy group with 1 to 10 carbon atoms in the alkyl moiety, a phenylsulphonyloxy or naphthylsulphonyloxy group optionally mono-, di- or trisubstituted by chlorine or bromine atoms, by methyl or nitro groups, wherein the substituents may be identical or different, a 1H-imidazol-1-yl, a 1H-pyrazol-1-yl optionally substituted by one or two methyl groups in the carbon skeleton, a 1H-1,2,4-triazol-1-yl, 1H-1,2,3-triazol-1-yl, 1H-1,2,3,4-tetrazol-1-yl, a vinyl, propargyl, p-nitrophenyl, 2,4-dinitrophenyl, trichlorophenyl, pentachlorophenyl, pentafluorophenyl, pyranyl or pyridinyl, a dimethylaminyloxy, 2(1H)-oxopyridin-1-yl-oxy, 2,5-dioxopyrrolidin pyrrolidin-1-yloxy, phthalimidyloxy, 1H-benzotriazol-1-yloxy or azide group, with an amine of general formula VI H—R3-R4, wherein all the groups are as hereinbefore defined and the link is effected via the nitrogen atom of the amine R3. Before the reaction is carried out any carboxylic acid functions, primary or secondary amino functions or hydroxy functions present in the groups of the amine of general formula VI may be protected by conventional protective groups and after the reaction has taken place any protective groups used may be cleaved again using methods familiar to those skilled in the art. The reaction is carried out under Schotten-Baumann or Einhorn conditions, i.e. the components are reacted in the presence of at least one equivalent of an auxiliary base at temperatures between −50° C. and +120° C., preferably −10° C. and +30° C., and optionally in the presence of solvents. The auxiliary bases used are preferably alkali metal and alkaline earth metal hydroxides, e.g. sodium hydroxide, potassium hydroxide or barium hydroxide, alkali metal carbonates, e.g. sodium carbonate, potassium carbonate or caesium carbonate, alkali metal acetates, e.g. sodium or potassium acetate, as well as tertiary amines, e.g. pyridine, 2,4,6-trimethylpyridine, quinoline, triethylamine, N-ethyl-diisopropylamine, N-ethyl-dicyclohexylamine, 1,4-diazabicyclo[2,2,2]octane or 1,8-diazabicyclo[5,4,0]undec-7-ene, the solvents used may be, for example, dichloromethane, tetrahydrofuran, 1,4-dioxane, acetonitrile, dimethyl formamide, dimethyl acetamide, N-methyl-pyrrolidone or mixtures thereof; if alkali metal or alkaline earth metal hydroxides, alkali metal carbonates or acetates are used as the auxiliary bases, water may also be added to the reaction mixture as cosolvent. The new compounds of general formula I according to the invention contain one or more chiral centres. If for example there are two chiral centres present, the compounds may occur in the form of two diastereomeric pairs of antipodes. The invention includes the individual isomers as well as the mixtures thereof. The diastereomers may be separated on the basis of their different physico-chemical properties, e.g. by fractional crystallisation from suitable solvents, by high pressure liquid or column chromatography, using chiral or preferably non-chiral stationary phases. Racemates covered by general formula I may be separated for example by HPLC on suitable chiral stationary phases (e.g. Chiral AGP, Chiralpak AD). Racemates which contain a basic or acidic function can also be separated via the diastereomeric, optically active salts which are produced on reacting with an optically active acid, for example (+) or (−)-tartaric acid, (+) or (−)-diacetyl tartaric acid, (+) or (−)-monomethyl tartrate or (+) or (−)-camphorsulphonic acid, or an optically active base, for example with (R)-(+)-1-phenylethylamine, (S)-(−)-1-phenylethylamine or (S)-brucine. According to a conventional method of separating isomers, the racemate of a compound of general formula I is reacted with one of the abovementioned optically active acids or bases in equimolar amounts in a solvent and the resulting crystalline, diastereomeric, optically active salts thereof are separated using their different solubilities. This reaction may be carried out in any type of solvent provided that it is sufficiently different in terms of the solubility of the salts. Preferably, methanol, ethanol or mixtures thereof, for example in a ratio by volume of 50:50, are used. Then each of the optically active salts is dissolved in water, carefully neutralised with a base such as sodium carbonate or potassium carbonate, or with a suitable acid, e.g. with dilute hydrochloric acid or aqueous methanesulphonic acid, and in this way the corresponding free compound is obtained in the (+) or (−) form. The (R) or (S) enantiomer alone or a mixture of two optically active diastereomeric compounds covered by general formula I may also be obtained by performing the syntheses described above with a suitable reaction component in the (R) or (S) configuration. The carboxylic acids of general formula V needed as starting compounds may be obtained by reacting piperidines of general formula VIII wherein R1 is as hereinbefore defined, with carbonic acid derivatives of general formula IX wherein Y1 and Y2 represent nucleofugic groups, which may be identical or different, preferably the chlorine atom, the p-nitrophenoxy or trichloromethoxy group, and with compounds of general formula X wherein R2 is as hereinbefore defined and Z1 denotes a protective group for a carboxy group, for example a C1-6-alkyl or an optionally substituted benzyl group, wherein the alkyl groups may be straight-chain or branched and the benzyl group may be substituted by one or two methoxy groups. Preferably Z1 denotes the methyl, ethyl, tert-butyl or benzyl group. Before the reaction is carried out any hydroxy functions present in the group R2 of a compound of formula VI may be protected by conventional protective groups and after the reaction is complete any protective groups used may be cleaved again using methods familiar to the skilled man. In a first step the compounds of general formula VIII are reacted with the carbonic acid derivatives of general formula IX in a solvent, for example in dichloromethane, THF, pyridine or mixtures thereof, at a temperature between −20° C. to 50° C. in the presence of a base, for example triethylamine, pyridine or ethyldiisopropylamine. The intermediate thus formed may be purified or reacted further without purification. The reaction of these intermediates with compounds of general formula X also takes place in one of the above-mentioned solvents and at the temperatures specified above, in the presence of a base, such as triethylamine or pyridine, with or without the addition of an activating reagent, such as e.g. 4-dimethylaminopyridine. To activate them the compounds of general formula X may also be deprotonated using a metal hydride, such as e.g. NaH or KH, while in this case there is no need for the base or the activating reagent to be present. The starting compounds of formula VIII and IX are either commercially obtainable, known from the literature or may be prepared using methods known from the literature. One way of obtaining compounds of general formula X comprises reacting aldehydes of general formula XI wherein R2 is as hereinbefore defined, with N-acetylglycine in acetic anhydride as solvent in the presence of alkali metal acetate, preferably sodium or potassium acetate, at suitable temperatures, preferably at 80 to 130° C. The azlactones obtained as primary product are hydrolysed without being isolated to form the compounds of general formula XII wherein R2 is as hereinbefore defined. Alternatively enamides of the general structure XIII wherein R2 is as hereinbefore defined, may be obtained by a coupling reaction of compounds of general formula XIV Hal-R2, wherein R2 is as hereinbefore defined and Hal denotes the bromine or iodine atom, and methyl 2-acetylaminoacrylate. The reaction is carried out in a suitable solvent such as tetrahydrofuran, dimethylformamide, 1,4-dioxane or acetonitrile, preferably acetonitrile, at temperatures between ambient temperature and 120° C., preferably between 50° C. and 80° C., in the presence of a suitable auxiliary base, such as triethylamine or ethyldiisopropylamine, preferably triethylamine, and a suitable catalyst system. Suitable catalyst systems constitute the combination of a palladium species, such as palladium(II)acetate or bis(acetonitrile)-palladium dichloride, preferably palladium(II)acetate, and a suitable phosphane ligand, such as triphenyl- or tris-o-tolyl-phosphane, preferably tris-o-tolyl-phosphane. By further reaction of compounds of general formulae XII and XIII in the presence of aqueous inorganic acids, such as sulphuric, phosphoric or hydrochloric acid, but preferably hydrochloric acid, compounds of general formula XV are obtained wherein R2 is as hereinbefore defined. These are then converted with suitable reducing agents into the compounds of general formula XVI wherein R2 is as hereinbefore defined. Suitable reducing agents are alkali metal borohydrides, such as sodium or potassium borohydride. Other suitable reducing agents are chlorodialkylboranes, such as chlorodicyclohexylborane. If chiral chlorodialkylboranes, such as e.g. B-chlorodiisopinocampheylborane, are used, the compounds of general formula XIV may be isolated in enantiomerically pure form. The further reaction of compounds of general formula XIV to form compounds of general formula X is carried out in an alcoholic medium, preferably in methanol or ethanol, in the presence of a suitable acid, such as hydrochloric acid. Alternatively, the reaction may be carried out by reacting with thionyl chloride in alcoholic solvents, preferably methanol. All the compounds of general formula I which contain primary or secondary amino, hydroxy or hydroxycarbonyl functions are preferably obtained from precursors with protective groups. Examples of protective groups for amino functions include a benzyloxycarbonyl, 2-nitrobenzyloxycarbonyl, 4-nitro-benzyloxycarbonyl, 4-methoxy-benzyloxycarbonyl, 2-chloro-benzyloxycarbonyl, 3-chloro-benzyloxycarbonyl, 4-chloro-benzyloxycarbonyl, 4-biphenylyl-α,α-dimethyl-benzyloxycarbonyl or 3,5-dimethoxy-α,α-dimethyl-benzyloxycarbonyl group, an alkoxycarbonyl group with a total of 1 to 5 carbon atoms in the alkyl moiety, for example the methoxycarbonyl, ethoxycarbonyl, n-propoxycarbonyl, iso-propoxycarbonyl, n-butoxycarbonyl, 1-methylpropoxycarbonyl, 2-methylpropoxy-carbonyl or tert-butyloxycarbonyl group, the allyloxycarbonyl, 2,2,2-trichloro-(1,1-dimethylethoxy)carbonyl or 9-fluorenylmethoxycarbonyl group or a formyl, acetyl or trifluoracetyl group. Examples of protective groups for hydroxy functions include a trimethylsilyl, triethylsilyl, triisopropyl, tert-butyldimethylsilyl or tert-butyldiphenylsilyl group, a tert-butyl, benzyl, 4-methoxybenzyl or 3,4-dimethoxybenzyl group. Examples of protective groups for hydroxycarbonyl functions include an alkyl group with a total of 1 to 5 carbon atoms, for example the methyl, ethyl, n-propyl, isopropyl, n-butyl, tert-butyl, allyl, 2,2,2-trichloroethyl, benzyl or 4-methoxybenzyl group. The compounds of general formula I obtained may, if they contain suitable basic functions, be converted, particularly for pharmaceutical use, into their physiologically acceptable salts with inorganic or organic acids. Suitable acids include for example hydrochloric acid, hydrobromic acid, phosphoric acid, nitric acid, sulphuric acid, methanesulphonic acid, ethanesulphonic acid, benzenesulphonic acid, p-toluenesulphonic acid, acetic acid, fumaric acid, succinic acid, lactic acid, mandelic acid, malic acid, citric acid, tartaric acid or maleic acid. Moreover, if they contain a carboxylic acid function, the new compounds of formula I may be converted into the addition salts thereof with inorganic or organic bases, particularly, for pharmaceutical use, into their physiologically acceptable addition salts. Suitable bases for this include for example sodium hydroxide, potassium hydroxide, ammonia, cyclohexylamine, dicyclohexylamine, ethanolamine, diethanolamine and triethanolamine. The present invention relates to racemates if the compounds of general formula I have only one chiral element. However, the application also includes the individual diastereomeric pairs of antipodes or mixtures thereof which are obtained if there is more than one chiral element in the compounds of general formula I, as well as the individual optically active enantiomers of which the above-mentioned racemates are made up. Also included in the subject matter of this invention are the compounds according to the invention, including the salts thereof, in which one or more hydrogen atoms, for example one, two, three, four or five hydrogen atoms, are replaced by deuterium. The new compounds of general formula I and the physiologically acceptable salts thereof have valuable pharmacological properties, based on their selective CGRP-antagonistic properties. The invention further relates to pharmaceutical compositions containing these compounds, their use and the preparation thereof. The new compounds mentioned above and the physiologically acceptable salts thereof have CGRP-antagonistic properties and exhibit good affinities in CGRP receptor binding studies. The compounds display CGRP-antagonistic properties in the pharmacological test systems described hereinafter. The following experiments were carried out to demonstrate the affinity of the above-mentioned compounds for human CGRP-receptors and their antagonistic properties: A. Binding Studies with SK-N-MC Cells (Expressing the Human CGRP Receptor) SK-N-MC cells are cultivated in “Dulbecco's modified Eagle medium”. The medium is removed from confluent cultures. The cells are washed twice with PBS buffer (Gibco 041-04190 M), detached by the addition of PBS buffer mixed with 0.02% EDTA, and isolated by centrifuging. After resuspension in 20 ml of “Balanced Salts Solution” [BSS (in mM): NaCl 120, KCl 5.4, NaHCO3 16.2, MgSO4 0.8, NaHPO4 1.0, CaCl2 1.8, D-glucose 5.5, HEPES 30, pH 7.40] the cells are centrifuged twice at 100×g and resuspended in BSS. After the number of cells has been determined, the cells are homogenised using an Ultra-Turrax and centrifuged for 10 minutes at 3000×g. The supernatant is discarded and the pellet is recentrifuged in Tris buffer (10 mM Tris, 50 mM NaCl, 5 mM MgCl2, 1 mM EDTA, pH 7.40) enriched with 1% bovine serum albumin and 0.1% bacitracin, and resuspended (1 ml/1000000 cells). The homogenised product is frozen at −80° C. The membrane preparations are stable for more than 6 weeks under these conditions. After thawing, the homogenised product is diluted 1:10 with assay buffer (50 mM Tris, 150 mM NaCl, 5 mM MgCl2, 1 mM EDTA, pH 7.40) and homogenised for 30 seconds with an Ultra-Turrax. 230 μl of the homogenised product are incubated for 180 minutes at ambient temperature with 50 pM 125I-iodotyrosyl-Calcitonin-Gene-Related Peptide (Amersham) and increasing concentrations of the test substances in a total volume of 250 μl. The incubation is ended by rapid filtration through GF/B-glass fibre filters treated with polyethyleneimine (0.1%) using a cell harvester. The protein-bound radioactivity is measured using a gamma counter. Non-specific binding is defined as the bound radioactivity after the presence of 1 μM human CGRP-alpha during incubation. The concentration binding curves are analysed using computer-aided non-linear curve fitting. The compounds mentioned hereinbefore show IC50 values ≧10000 nM in the test described. B. CGRP Antagonism in SK-N-MC Cells SK-N-MC cells (1 million cells) are washed twice with 250 μl incubation buffer (Hanks' HEPES, 1 mM 3-isobutyl-1-methylxanthine, 1% BSA, pH 7.4) and pre-incubated at 37° C. for 15 minutes. After the addition of CGRP (10 μl) as agonist in increasing concentrations (10−11 to 10−6 M), or additionally the substance in 3 to 4 different concentrations, the mixture is incubated for another 15 minutes. Intracellular cAMP is then extracted by the addition of 20 μl of 1 M HCl and centrifugation (2000×g, 4° C., for 15 minutes). The supernatants are frozen in liquid nitrogen and stored at −20° C. The cAMP contents of the samples are determined by radioimmunoassay (Messrs. Amersham) and the pA2 values of antagonistically acting substances are determined graphically. The compounds according to the invention exhibit CGRP-antagonistic properties in the in vitro test model described, in a dosage range between 10−12 and 10−5 M. Part Indications: In view of their pharmacological properties the compounds according to the invention and the salts thereof with physiologically acceptable acids are thus suitable for the acute and prophylactic treatment of headaches, particularly migraine or cluster headaches and tension headaches. Moreover, the compounds according to the invention also have a positive effect on the following diseases: non-insulin-dependent diabetes mellitus (“NIDDM”), cardiovascular diseases, morphine tolerance, diarrhoea caused by clostridium toxin, skin diseases, particularly thermal and radiation-induced skin damage including sunburn, lichen, pruritis, pruritic toxidermies and severe itching, inflammatory diseases, e.g. inflammatory diseases of the joints (osteoarthritis, rheumatoid arthritis, neurogenic arthritis), generalised soft-tissue rheumatism (fibromyalgia), neurogenic inflammation of the oral mucosa, inflammatory lung diseases, allergic rhinitis, asthma, COPD, diseases accompanied by excessive vasodilatation and resultant reduced blood supply to the tissues, e.g. shock and sepsis, chronic pain, e.g. diabetic neuropathies, neuropathies induced by chemotherapy, HIV-induced neuropathies, postherpetic neuropathies, neuropathies induced by tissue trauma, trigeminal neuralgias, temporomandibular dysfunctions, CRPS (complex regional pain syndrome), back pain, and visceral complaints, such as e.g. irritable bowel syndrome (IBS) and inflammatory bowel syndrome. In addition, the compounds according to the invention have a general pain-relieving effect. The symptoms of menopausal hot flushes caused by vasodilatation and increased blood flow in oestrogen-deficient women and hormone-treated patients with prostate carcinoma and castrated men are favourably affected by the CGRP antagonists of the present application in a preventive and acute-therapeutic capacity, this therapeutic approach being distinguished from hormone replacement by the absence of side effects. Preferably, the compounds according to the invention are suitable for the acute and prophylactic treatment of migraine and cluster headaches, for treating irritable bowel syndrome (IBS) and for the preventive and acute-therapeutic treatment of hot flushes in oestrogen-deficient women. The dosage required to achieve a corresponding effect is conveniently 0.0001 to 3 mg/kg of body weight, preferably 0.01 to 1 mg/kg of body weight, when administered intravenously or subcutaneously, and 0.01 to 10 mg/kg of body weight, preferably 0.1 to 10 mg/kg of body weight when administered orally, nasally or by inhalation, one to three times a day in each case. If the treatment with CGRP antagonists and/or CGRP release inhibitors is given as a supplement to conventional hormone replacement, it is advisable to reduce the doses specified above, in which case the dosage may be from 1/5 of the lower limits mentioned above up to 1/1 of the upper limits specified. The invention further relates to the use of the compounds according to the invention as valuable adjuvants for the production and purification (by affinity chromatography) of antibodies as well as in RIA and ELISA assays, after suitable radioactive labelling, for example by tritiation of suitable precursors, for example by catalytic hydrogenation with tritium or replacing halogen atoms with tritium, and as a diagnostic or analytical adjuvant in neurotransmitter research. Part Combinations: Categories of active substance which may be used in combination include e.g. antiemetics, prokinetics, neuroleptics, antidepressants, neurokinin antagonists, anticonvulsants, histamine-H1-receptor antagonists, α-blockers, α-agonists and α-antagonists, ergot alkaloids, mild analgesics, non-steroidal antiphlogistics, corticosteroids, calcium antagonists, 5-HT1B/1D-agonists or other anti-migraine agents which may be formulated together with one or more inert conventional carriers and/or diluents, e.g. with corn starch, lactose, glucose, microcrystalline cellulose, magnesium stearate, polyvinyl pyrrolidone, citric acid, tartaric acid, water, water/ethanol, water/glycerol, water/sorbitol, water/polyethylene glycol, propylene glycol, cetylstearyl alcohol, carboxymethylcellulose or fatty substances such as hard fat or suitable mixtures thereof, into conventional galenic preparations such as plain or coated tablets, capsules, powders, suspensions, solutions, metered dose aerosols or suppositories. Thus other active substances which may be used for the combinations mentioned above include for example the non-steroidal antiinflammatories aceclofenac, acemetacin, acetylsalicylic acid, acetaminophen (paracetamol), azathioprine, diclofenac, diflunisal, fenbufen, fenoprofen, flurbiprofen, ibuprofen, indometacin, ketoprofen, leflunomide, lornoxicam, mefenamic acid, naproxen, phenylbutazone, piroxicam, sulphasalazine, zomepirac or the pharmaceutically acceptable salts thereof as well as meloxicam and other selective COX2-inhibitors, such as for example rofecoxib, valdecoxib, parecoxib, etoricoxib and celecoxib, as well as substances that inhibit earlier or later stages of prostaglandin synthesis or prostaglandin receptor antagonists such as e.g. EP2-receptor antagonists and IP-receptor antagonists. It is also possible to use ergotamine, dihydroergotamine, metoclopramide, domperidone, diphenhydramine, cyclizine, promethazine, chlorpromazine, vigabatrin, timolol, isometheptene, pizotifen, botox, gabapentin, pregabalin, duloxetine, topiramate, riboflavin, montelukast, lisinopril, micardis, prochloroperazine, dexamethasone, flunarizine, dextropropoxyphene, meperidine, metoprolol, propranolol, nadolol, atenolol, clonidine, indoramin, carbamazepine, phenytoin, valproate, amitryptiline, imipramine, venlafaxine, lidocaine or diltiazem and other 5-HT1B/1D-agonists such as, for example, almotriptan, avitriptan, eletriptan, frovatriptan, naratriptan, rizatriptan, sumatriptan and zolmitriptan. Furthermore, CGRP antagonists with vanilloid receptor antagonists, such as e.g. VR-1 antagonists, glutamate receptor antagonists, such as e.g. mGlu5 receptor antagonists, mGlu1 receptor antagonists, iGlu5 receptor antagonists, AMPA receptor antagonists, purine receptor blockers, such as e.g. P2X3 antagonists, NO-synthase inhibitors, such as e.g. iNOS inhibitors, calcium channel blockers, such as e.g. PQ-type blockers, N-type blockers, potassium channel openers, such as e.g. KCNQ channel openers, sodium channel blockers, such as e.g. PN3 channel blockers, NMDA receptor antagonists, acid-sensing ion channel antagonists, such as e.g. ASIC3 antagonists, bradykinin receptor antagonists such as e.g. B1 receptor antagonists, cannabinoid receptor agonists, such as e.g. CB2 agonists, CB1 agonists, somatostatin receptor agonists, such as e.g. sst2 receptor agonists may be added. The dosage of these active substances is expediently 1/5 of the lowest usually recommended dose to 1/1 of the normally recommended dose, i.e. for example 20 to 100 mg of sumatriptan. Part Formulations: The compounds prepared according to the invention may be administered either on their own or optionally in combination with other active substances for the treatment of migraine by intravenous, subcutaneous, intramuscular, intraarticular, intrarectal, intranasal route, by inhalation, topically, transdermally or orally, while aerosol formulations are particularly suitable for inhalation. The combinations may be administered either simultaneously or sequentially. Suitable forms for administration are for example tablets, capsules, solutions, syrups, emulsions or inhalable powders or aerosols. The content of the pharmaceutically effective compound(s) in each case should be in the range from 0.1 to 90 wt. %, preferably 0.5 to 50 wt. % of the total composition, i.e. in amounts which are sufficient to achieve the dosage range specified hereinafter. The preparations may be administered orally in the form of a tablet, as a powder, as a powder in a capsule (e.g. a hard gelatine capsule), as a solution or suspension. When administered by inhalation the active substance combination may be given as a powder, as an aqueous or aqueous-ethanolic solution or using a propellant gas formulation. Preferably, therefore, pharmaceutical formulations are characterised by the content of one or more compounds of formula I according to the preferred embodiments above. It is particularly preferable if the compounds of formula I are administered orally, and it is also particularly preferable if they are administered once or twice a day. Suitable tablets may be obtained, for example, by mixing the active substance(s) with known excipients, for example inert diluents such as calcium carbonate, calcium phosphate or lactose, disintegrants such as corn starch or alginic acid, binders such as starch or gelatine, lubricants such as magnesium stearate or talc and/or agents for delaying release, such as carboxymethyl cellulose, cellulose acetate phthalate, or polyvinyl acetate. The tablets may also comprise several layers. Coated tablets may be prepared accordingly by coating cores produced analogously to the tablets with substances normally used for tablet coatings, for example collidone or shellac, gum arabic, talc, titanium dioxide or sugar. To achieve delayed release or prevent incompatibilities the core may also consist of a number of layers. Similarly the tablet coating may consist of a number of layers to achieve delayed release, possibly using the excipients mentioned above for the tablets. Syrups containing the active substances or combinations thereof according to the invention may additionally contain a sweetener such as saccharine, cyclamate, glycerol or sugar and a flavour enhancer, e.g. a flavouring such as vanillin or orange extract. They may also contain suspension adjuvants or thickeners such as sodium carboxymethyl cellulose, wetting agents such as, for example, condensation products of fatty alcohols with ethylene oxide, or preservatives such as p-hydroxybenzoates. Capsules containing one or more active substances or combinations of active substances may for example be prepared by mixing the active substances with inert carriers such as lactose or sorbitol and packing them into gelatine capsules. Suitable suppositories may be made for example by mixing with carriers provided for this purpose, such as neutral fats or polyethyleneglycol or the derivatives thereof. Excipients which may be used include, for example, water, pharmaceutically acceptable organic solvents such as paraffins (e.g. petroleum fractions), vegetable oils (e.g. groundnut or sesame oil), mono- or polyfunctional alcohols (e.g. ethanol or glycerol), carriers such as e.g. natural mineral powders (e.g. kaolins, clays, talc, chalk), synthetic mineral powders (e.g. highly dispersed silicic acid and silicates), sugars (e.g. cane sugar, lactose and glucose), emulsifiers (e.g. lignin, spent sulphite liquors, methylcellulose, starch and polyvinylpyrrolidone) and lubricants (e.g. magnesium stearate, talc, stearic acid and sodium lauryl sulphate). For oral administration the tablets may, of course, contain, apart from the abovementioned carriers, additives such as sodium citrate, calcium carbonate and dicalcium phosphate together with various additives such as starch, preferably potato starch, gelatine and the like. Moreover, lubricants such as magnesium stearate, sodium lauryl sulphate and talc may be used at the same time for the tabletting process. In the case of aqueous suspensions the active substances may be combined with various flavour enhancers or colourings in addition to the excipients mentioned above. It is also preferred if the compounds of formula I are administered by inhalation, particularly preferably if they are administered once or twice a day. For this purpose, the compounds of formula I have to be made available in forms suitable for inhalation. Inhalable preparations include inhalable powders, propellant-containing metered-dose aerosols or propellant-free inhalable solutions, which are optionally present in admixture with conventional physiologically acceptable excipients. Within the scope of the present invention, the term propellant-free inhalable solutions also includes concentrates or sterile ready-to-use inhalable solutions. The preparations which may be used according to the invention are described in more detail in the next part of the specification. Inhalable Powders If the compounds of formula I are present in admixture with physiologically acceptable excipients, the following physiologically acceptable excipients may be used to prepare the inhalable powders according to the invention: monosaccharides (e.g. glucose or arabinose), disaccharides (e.g. lactose, saccharose, maltose), oligo- and polysaccharides (e.g. dextrans), polyalcohols (e.g. sorbitol, mannitol, xylitol), salts (e.g. sodium chloride, calcium carbonate) or mixtures of these excipients with one another. Preferably, mono- or disaccharides are used, while the use of lactose or glucose is preferred, particularly, but not exclusively, in the form of their hydrates. For the purposes of the invention, lactose is the particularly preferred excipient, while lactose monohydrate is most particularly preferred. Methods of preparing the inhalable powders according to the invention by grinding and micronising and by finally mixing the components together are known from the prior art. Propellant-containing Inhalable Aerosols The propellant-containing inhalable aerosols which may be used according to the invention may contain I dissolved in the propellant gas or in dispersed form. The propellant gases which may be used to prepare the inhalation aerosols are known from the prior art. Suitable propellant gases are selected from among hydrocarbons such as n-propane, n-butane or isobutane and halohydrocarbons such as preferably fluorinated derivatives of methane, ethane, propane, butane, cyclopropane or cyclobutane. The propellant gases mentioned above may be used on their own or in mixtures thereof. Particularly preferred propellant gases are fluorinated alkane derivatives selected from TG134a (1,1,1,2-tetrafluoroethane), TG227 (1,1,1,2,3,3,3-heptafluoropropane) and mixtures thereof. The propellant-driven inhalation aerosols used within the scope of the use according to the invention may also contain other ingredients such as co-solvents, stabilisers, surfactants, antioxidants, lubricants and pH adjusters. All these ingredients are known in the art. Propellant-free Inhalable Solutions The compounds of formula I are preferably used according to the invention to prepare propellant-free inhalable solutions and inhalable suspensions. Solvents used for this purpose include aqueous or alcoholic, preferably ethanolic solutions. The solvent may be water on its own or a mixture of water and ethanol. The solutions or suspensions are adjusted to a pH of 2 to 7, preferably 2 to 5, using suitable acids. The pH may be adjusted using acids selected from inorganic or organic acids. Examples of particularly suitable inorganic acids include hydrochloric acid, hydrobromic acid, nitric acid, sulphuric acid and/or phosphoric acid. Examples of particularly suitable organic acids include ascorbic acid, citric acid, malic acid, tartaric acid, maleic acid, succinic acid, fumaric acid, acetic acid, formic acid and/or propionic acid etc. Preferred inorganic acids are hydrochloric and sulphuric acids. It is also possible to use the acids which have already formed an acid addition salt with one of the active substances. Of the organic acids, ascorbic acid, fumaric acid and citric acid are preferred. If desired, mixtures of the above acids may also be used, particularly in the case of acids which have other properties in addition to their acidifying qualities, e.g. as flavourings, antioxidants or complexing agents, such as citric acid or ascorbic acid, for example. According to the invention, it is particularly preferred to use hydrochloric acid to adjust the pH. Co-solvents and/or other excipients may be added to the propellant-free inhalable solutions used for the purpose according to the invention. Preferred co-solvents are those which contain hydroxyl groups or other polar groups, e.g. alcohols—particularly isopropyl alcohol, glycols—particularly propyleneglycol, polyethyleneglycol, polypropyleneglycol, glycolether, glycerol, polyoxyethylene alcohols and polyoxyethylene fatty acid esters. The terms excipients and additives in this context denote any pharmacologically acceptable substance which is not an active substance but which can be formulated with the active substance or substances in the pharmacologically suitable solvent in order to improve the qualitative properties of the active substance formulation. Preferably, these substances have no pharmacological effect or, in connection with the desired therapy, no appreciable or at least no undesirable pharmacological effect. The excipients and additives include, for example, surfactants such as soya lecithin, oleic acid, sorbitan esters, such as polysorbates, polyvinylpyrrolidone, other stabilisers, complexing agents, antioxidants and/or preservatives which guarantee or prolong the shelf life of the finished pharmaceutical formulation, flavourings, vitamins and/or other additives known in the art. The additives also include pharmacologically acceptable salts such as, for example, sodium chloride as isotonic agents. The preferred excipients include antioxidants such as ascorbic acid, for example, provided that it has not already been used to adjust the pH, vitamin A, vitamin E, tocopherols and similar vitamins or provitamins occurring in the human body. Preservatives may be used to protect the formulation from contamination with pathogens. Suitable preservatives are those which are known in the art, particularly cetyl pyridinium chloride, benzalkonium chloride or benzoic acid or benzoates such as sodium benzoate in the concentration known from the prior art. Part Experimental Section: As a rule IR, 1H-NMR and mass spectra have been obtained for the compounds prepared. Unless stated otherwise, Rf values are determined using ready-made TLC silica gel plates 60 F254 (E. Merck, Darmstadt, Item no. 1.05714) without chamber saturation. The Rf values determined under the heading Polygram-Alox are obtained using ready-made Polygram Alox N/UV254 TLC films (coated with 0.2 mm aluminium oxide) made by Macherey-Nagel (Düren, Item no. 802 021). The ratios given for the eluants relate to units by volume of the particular solvents. The units by volume given for NH3 relate to a concentrated solution of NH3 in water. Unless stated otherwise, the acid, base and salt solutions used in working up the reaction solutions are aqueous systems of the specified concentrations. Silica gel made by Millipore (MATREX™, 35-70 μm) is used for chromatographic purifications. Aluminium oxide (Alox) made by ICN Biomedicals (Eschwege, Item no. 02090) is used
{'bibliographic_information': "{'country': 'US', 'doc-number': '11533096', 'kind': 'B2', 'date': '20060919', 'extension': '145', 'disclaimer_text': 'This patent is subject to a terminal disclaimer.', 'invention_title': 'Selected CGRP antagonists, processes for preparing them and their use as pharmaceutical compositions'}", 'source_file': './grant/2009/ipg090901.xml', 'source_data': 'USPTO-Grant'}