2-((4-(3,4-Dimethoxyphenyl)-6-imino-3-methyl-6,7-dihydropyrazolo[3,4-d][1,3]thiazin-1(4H)-yl)carbonyl)phenol AIDS-141769 AIDS141769 NSC657997 {4H-Pyrazolo[3,4-d][1,3]thiazin-6-amine,} 4-(3,4-dimethoxy phenyl)-1-(2-hydroxyphenyl)-3-methyl-