(8-Methyl-5,7-dioxo-2,3,5,6,7,8-hexahydrothiazolo(3,2-f)purin-6-yl)acetic acid diethylamine 1,4,6,7-Tetrahydro-N,N-diethyl-2,4-dioxo-1-methylthiazolo(2,3-f)purine-3(2H)-acetamide 178452-85-2 Thiazolo(2,3-f)purine-3(2H)-acetamide, 1,4,6,7-tetrahydro-N,N-diethyl-2,4-dioxo-1-methyl-