4H-Pyrazolo[3,4-d][1,3]thiazin-6-amine der. AIDS-030391 AIDS030391 NSC657978 Pyrazolo[3,4-d][1,3]thiazin-6(1H)-imine, 1-(4-chlorobenzoyl)-4-(2-furanyl)-4,7-dihydro-3-methyl-