英文同义词: | ethyl 4-oxo-1,4-dihydro-1,5-naphthyridine-3-carboxylate;4-Oxo-1,4-dihydro-[1,5]naphthyridine-3-carboxylic acid ethyl ester;1,5-Naphthyridine-4-oxo-3-carboxylic acid ethyl ester;1,5-Naphthyridine-3-carboxylic acid, 1,4-dihydro-4-oxo-, ethyl ester |