(3R,6S)-1-tert-butyl 3-methyl 6-methylpiperidine-1,3-dicarboxylate
(3S,6R)-1-tert-butyl 3-methyl 6-methylpiperidine-1,3-dicarboxylate
(2R,4R)-2-HYDROXYMETHYL-4-BOC-AMINO PYRROLIDINE-HCL