英文同义词: | Methyl7-nitro-5-oxo-3,5-dihydro-2H-oxazolo[2,3-b]quinazoline-8-carboxylate;methyl 7-nitro-5-oxo-2,3-dihydro-5H-[1,3]oxazolo[2,3-b]quinazoline-8-carboxylate;5H-Oxazolo[2,3-b]quinazoline-8-carboxylic acid, 2,3-dihydro-7-nitro-5-oxo-, methyl ester |