4,4-Difluoropiperidin-3-ol hydrochloride

3-Trifluoromethyl-2,5-dihydro-pyrrole-1-carboxylic acid tert-butyl ester

1-Cbz-4,4-difluoro-3-hydroxy-piperidine

3-(1-Amino-2,2,2-trifluoro-ethyl)-piperidine-1-carboxylic acid tert-butyl ester

4-Ethoxycarbonylmethyl-3,3-difluoro-piperidine-1-carboxylic acid benzyl ester

(2S,4S)-4-Hydroxy-piperidine-2-carboxylic acid methyl ester

4-(Cyclopropyl-methyl-amino)-but-2-enoic acid hydrochloride