2-((4-(4-Hydroxyphenyl)-6-imino-3-methyl-6,7-dihydropyrazolo[3,4-d][1,3]thiazin-1(4H)-yl)carbonyl)phenol AIDS-141765 AIDS141765 NSC657993 {4H-Pyrazolo[3,4-d][1,3]thiazin-6-amine,} 1-(2-hydroxybenzoyl)-4-(4-hydroxyphenyl)- 3-methyl-