英文别名6-Azaspiro[2.5]octane-1,6-dicarboxylic acid, 1-ethyl 6-(phenylmethyl) ester; 6-BENZYL1-ETHYL6-AZASPIRO[2.5]OCTANE-16-DICARBOXY; Ethyl 6-Cbz-6-azaspiro[2.5]octane-1-carboxylate; 6-aza-spiro[2.5]octane-1,6-dicarboxylic acid 6-benzyl ester 1-ethyl ester