the 2-(1-piperidino)propiophenone is reacted with cyclohexylmagnesium bromide in a Grignard reaction. Stereochemistry Trihexyphenidyl has a chiral center and two enantiomers. Medications are racemates. Research Equivocal preliminary results from small studies exist for: Other dyskinesias Huntington's chorea Spasmodic torticollis Dystonia See also Biperiden (bicyclic ring) Cycrimine (cyclopentanyl instead of cyclohexanyl) Gamfexine Procyclidine References Tertiary alcohols Muscarinic antagonists 1-Piperidinyl compounds Cyclohexyl compounds