1,2,3-Trimethoxy-7-(methylamino)-10-(methylthio)-6,7-dihydrobenzo[a]heptalen-9(5H)-one 76129-11-8 AIDS-128128 AIDS128128 NSC221662 {Benzo[a]heptalen-9(5H)-one,} 6,7-dihydro-1,2, 3-trimethoxy-7-(methylamino)-10-(methylthio)-, (S)-