2,3,6,9-tetrahydro-5H,7H-[1,3]thiazolo[3,2-a]thiopyrano[4',3':4,5]thieno[2,3-d]pyrimidin-5-one 5H,7H-thiazolo[3,2-a]thiopyrano[4',3':4,5]thieno[2,3-d]pyrimidin-5-one, 2,3,6,9-tetrahydro- InChI=1/C11H10N2OS3/c14-10-8-6-1-3-15-5-7(6)17-9(8)12-11-13(10)2-4-16-11/h1-5H