4H-Pyrazolo[3,4-d][1,3]thiazin-6-amine der. AIDS-029398 AIDS029398 NSC657967 Pyrazolo[3,4-d][1,3]thiazin-6(1H)-imine, 1-(4-chlorobenzoyl)-4,7-dihydro-4-(4-methoxyphenyl)-3-methyl-