| 英文同义词: | ethyl 5,6-benzocoumarin-3-carboxylate;5,6-benzocoumarin-3-carboxylic acid ethyl ester;3-Oxo-3H-naphtho[2,1-b]pyran-2-carboxylic acid ethyl ester;ethyl 3-oxo-3H-benzo[f]chromene-2-carboxylate;3H-Naphtho[2,1-b]pyran-2-carboxylic acid, 3-oxo-, ethyl ester |