5H-thiazolo[3,2-a]pyrimidine-6-carboxylic acid, 2,3-dihydro-5-oxo-, methyl ester InChI=1/C8H8N2O3S/c1-13-7(12)5-4-9-8-10(6(5)11)2-3-14-8/h4H,2-3H2,1H methyl 5-oxo-2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate