英文别名2-Methyl-2-propanyl 9-oxo-2-azaspiro[5.5]undecane-2-carboxylate; 2-Azaspiro[5.5]undecane-2-carboxylic acid, 9-oxo-, 1,1-dimethylethyl ester; 2-Boc-2-azaspiro[5.5]undecane-9-one; tert-Butyl 9-oxo-4-azaspiro[5.5]undecane-4-carboxylate; 9-Oxo-2-azaspiro[5.5]undecane-2-carboxylic acid tert-butyl ester; 9-Oxo-2-azaspiro[5.5]undecane-2-carboxylic acid 1,1-dimethylethyl ester 
