英文别名9-BENZYL-3,9-DIAZA-SPIRO[5.5]UNDECANE-3-CARBOXYLIC ACID TERT-BUTYL ESTER; 3,9-Diazaspiro[5.5]undecane-3-carboxylic acid, 9-(phenylmethyl)-, 1,1-dimethylethyl ester; tert-Butyl-9-benzyl-3,9-diazaspiro[5.5]undecan-3-carboxylat; 2-Methyl-2-propanyl 9-benzyl-3,9-diazaspiro[5.5]undecane-3-carboxylate 
