4-(1-(4-Chlorobenzoyl)-6-imino-3-methyl-1,4,6,7-tetrahydropyrazolo[3,4-d][1,3]thiazin-4-yl)-2-methoxyphenol AIDS-141750 AIDS141750 NSC657973 {4H-Pyrazolo[3,4-d][1,3]thiazin-6-amine,} 1-(4-chlorobenzoyl)- 4-(4-hydroxy-3-methoxyphenyl)-3-methyl-