| 英文同义词: | 1-PIPERIDINECARBOXYLIC ACID, 4-OXO-, ETHYL ESTER;4-Oxo-1-piperidinecarboxylic acid ethyl ester;N-Carbithoxy-4-Piperidone;1-Ethoxycarbonyl-4-Piperidone N-Carbethoxy-4-Hydroxy Piperidine;N-Carbethoxypiperidone;1-ETHOXYCARBONYL-4-PIPERIDONE 97+%;N-Carbethoxy-4-Piperidone99%;N-Carbethoxy-4-piperidon |