1-benzyl-4-trifluoromethyl-piperidin-4-ol

4-hydroxy-4-trifluoromethyl-piperidine-1-carboxylic acid benzyl ester

tert-butyl 4-hydroxy-4-(trifluoromethyl)piperidine-1-carboxylate

三氟乙酸

1-Cbz-4-哌啶酮