Synonyms: 5H-thiazolo[3,2-a]pyrimidine-6-carboxylic acid, 2,3-dihydro-7-methyl-2-[[5-(4-methyl-2-nitrophenyl)-2-furanyl]methylene]-3-oxo-5-phenyl-, ethyl ester, (2Z)-;Ethyl (2Z)-7-methyl-2-{[5-(4-methyl-2-nitrophenyl)-2-furyl]methylene}-3-oxo-5-phenyl-2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate