英文别名2,9-Dioxa-6-azaspiro[3.5]nonane-6-carboxylic acid tert-butyl ester; 2,5-Dioxa-8-azaspiro[3.5]nonane-8-carboxylic acid, 1,1-dimethylethyl ester; 6-Boc-2,9-dioxa-6-azaspiro[3.5]nonane; 1,1-Dimethylethyl 2,5-dioxa-8-azaspiro[3.5]nonane-8-carboxylate 
