3-Methyl-1-(phenylacetyl)-4-(4-(2-phenylvinyl)phenyl)-4,7-dihydropyrazolo[3,4-d][1,3]thiazin-6(1H)-imine AIDS-141502 AIDS141502 NSC657380 {4H-Pyrazolo[3,4-d][1,3]thiazin-6-amine,} 3-methyl- {4-[4-(2-phenylethenyl)-1-(phenylacetyl)-}