2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one 5H-thiazolo[3,2-a]pyrimidin-5-one, 2,3-dihydro- InChI=1/C6H6N2OS/c9-5-1-2-7-6-8(5)3-4-10-6/h1-2H,3-4H