英文别名2-Methyl-2-propanyl 4-(2-ethoxy-2-oxoethyl)-3,3-difluoro-1-piperidinecarboxylate; 4-Piperidineacetic acid, 1-[(1,1-dimethylethoxy)carbonyl]-3,3-difluoro-, ethyl ester; Ethyl 2-(1-Boc-3,3-difluoro-4-piperidyl)acetate; 1-Boc-4-(2-ethoxy-2-oxoethyl)-3,3-difluoropiperidine; t-Butyl 4-(2-ethoxy-2-oxoethyl)-3,3-difluoropiperidine-1-carboxylate; tert-butyl 4-(2-ethoxy-2-oxo-ethyl)-3,3-difluoro-piperidine-1-carboxylate; 4-Ethoxycarbonylmethyl-3,3-difluoro-piperidine-1-carboxylic acid tert-butyl ester; Ethyl 1-[(1,1-dimethylethoxy)carbonyl]-3,3-difluoro-4-piperidineacetate 
