英文别名Cyclobutanecarboxylic acid, 1-[[(1,1-diMethylethoxy)carbonyl]aMino]-, ethyl ester; ethyl 1-[(tert-butoxycarbonyl)amino]cyclobutanecarboxylate; Apatamide Impurity 38; ethyl 1-tert-butoxycarbonylaminocyclobutanecarboxylate; 1-tert-butoxycarbonylaminocyclobutanecarboxylic acid ethyl ester 
