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tert-butyl (5R)-5-(aminomethyl)-3,3-difluoropiperidine-1-carboxylate

tert-butyl (4S)-3,3-difluoro-4-(methylamino)piperidine-1-carboxylate

tert-butyl 4-amino-4-(difluoromethyl)piperidine-1-carboxylate

Carbamic acid, N-[(2R,3S)-2-(difluoromethyl)-3-piperidinyl]-, 1,1-dimethylethyl ester, rel-

tert-butyl N-(3,3-difluoro-1-methylpiperidin-4-yl)carbamate

tert-butyl (2R)-2-(aminomethyl)-4,4-difluoro-piperidine-1-carboxylate

Carbamic acid, N-[(2R,6R)-6-(difluoromethyl)-2-piperidinyl]-, 1,1-dimethylethyl ester, rel-

1,1-difluoro-2-methylpropan-2-yl N-(1-methylpiperidin-4-yl)carbamate

tert-butyl 3-amino-4,4-difluoro-3-methyl-piperidine-1-carboxylate

tert-butyl 4,4-difluoro-3-(methylamino)piperidine-1-carboxylate

2-(2-chloroethoxy)ethyl 3-methylpiperidine-1-carboxylate

tert-butyl 3-(chloromethyl)-4-hydroxypiperidine-1-carboxylate

tert-butyl 4-(chloromethyl)-3-hydroxypiperidine-1-carboxylate

tert-butyl trans-N-(3-methylsulfonylcyclobutyl)carbamate

methyl 1-benzyl-5-hydroxy-piperidine-2-carboxylate

benzyl (2R)-5-hydroxy-2-methylpiperidine-1-carboxylate