4H-Pyrazolo[3,4-d][1,3]thiazin-6-amine der. AIDS-029400 AIDS029400 NSC657998 Pyrazolo[3,4-d][1,3]thiazin-6(1H)-imine, 4-(2-furanyl)-4,7-dihydro-1-(2-hydroxybenzoyl)-3-methyl-