5-hydroxy-7-oxo-2,3,6,7-tetrahydro-5H-[1,3]thiazolo[3,2-a]pyrimidine-5-carboxylic acid 5H-thiazolo[3,2-a]pyrimidine-5-carboxylic acid, 2,3,6,7-tetrahydro-5-hydroxy-7-oxo- InChI=1/C7H8N2O4S/c10-4-3-7(13,5(11)12)9-1-2-14-6(9)8-4/h13H,1-3H2,(H,11,12