英文别名3-ethyl-4-oxopiperidine-1,3-dicarboxylate; 1,3-Piperidinedicarboxylic acid, 3-ethyl-4-oxo-, 1-(1,1-dimethylethyl) 3-methyl ester; Methyl 1-Boc-3-ethyl-4-oxopiperidine-3-carboxylate; 1-O-tert-butyl 3-O-methyl 3-ethyl-4-oxopiperidine-1,3-dicarboxylate; methyl 1-tert-butoxycarbonyl-4-oxo-3-ethyl-3-piperidinecarboxylate