英文同义词: | 6-Chloro-1,5-naphthyridine-4-oxo-3-carboxylic acid ethyl ester;6-Chloro-4-oxo-1,4-dihydro-[1,5]naphthyridine-3-carboxylic acid ethyl ester;1,5-Naphthyridine-3-carboxylic acid, 6-chloro-1,4-dihydro-4-oxo-, ethyl ester;ethyl 6-chloro-4-oxo-1,4-dihydro-1,5-naphthyridine-3-carboxylate |