Synonyms: 5H-thiazolo[3,2-a]pyrimidine-6-carboxylic acid, 2,3-dihydro-5-(4-methoxyphenyl)-7-methyl-3-oxo-2-[(3,4,5-trimethoxyphenyl)methylene]-, ethyl ester, (2E)-;Ethyl (2E)-5-(4-methoxyphenyl)-7-methyl-3-oxo-2-(3,4,5-trimethoxybenzylidene)-2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate