1-(4-Chlorobenzoyl)-3-methyl-4-phenyl-4,7-dihydropyrazolo[3,4-d][1,3]thiazin-6(1H)-imine AIDS-141744 AIDS141744 NSC657965 {4H-Pyrazolo[3,4-d][1,3]thiazine-6-amine,} 1-(4- chlorobenzoyl)-3-methyl-4-phenyl-