 A proposed method of synthesis (Figure 1) starts with alkylation of 4-chloropyridine with a Grignard reagent derived from 1-bromoundecane, followed by reaction with phenyl chloroformate to form 4-chloro-1-(phenoxycarbonyl)-2-"n"-undecyl-1,2-dihydropyridine.The phenylcarbamate is converted to the BOC protecting group, and then pyridine is methylated at the 6 position.The pyridine ring is then reduced to a tetrahydropyridine via catalytic hydrogenation with Pd/C and then further reduced with sodium cyanoborohydride to a piperidine ring.