英文同义词: | tert-butyl 2-(3-ethoxy-3-oxoprop-1-en-1-yl)-8-azaspiro[4.5]decane-8-carboxylate;(E)-tert-Butyl 2-(3-ethoxy-3-oxoprop-1-en-1-yl)-8-azaspiro[4.5]decane-8-carboxylate;8-Azaspiro[4.5]decane-8-carboxylic acid, 2-[(1E)-3-ethoxy-3-oxo-1-propen-1-yl]-, 1,1-dimethylethyl ester |