4-(1,1-Dimethylethyl)-1-(1-methylethyl)-\{9,10-dihydro-12-met {hoxy-8-hydroxymethyl-9-oxoindolizo[1,} 2-b\]quinolin-7-yl\}butanedioate 4-tert-Butyl 1-isopropyl 2-(8-(hydroxymethyl)-12-methoxy-9-oxo-9,11-dihydroindolizino[1,2-b]quinolin-7-yl)succinate AIDS-146673 AIDS146673 NSC674347