AIDS-112809 AIDS112809 Butanedioic acid, mono[(4S)-4-ethyl-3,4,12,14-tetrahydro-3,14-dioxo-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinolin-4-yl] ester Butanedioic acid,4-ethyl-3,4,12,14-tetrahydro-3,14-dioxo- 1H-pyrano[3',4':6,7]indolizino[1,2-b]quinolin-4-yl ester, (S)- Camptothecinhemisuccinate NSC610456