AIDS-112823 AIDS112823 Camptothecin-20-O-(N,N-dimethyl)glycinate HCl Glycine, N,N-dimethyl-,4-ethyl-3,4,12,14-tetrahydro-3,14-dioxo-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinolin-4-yl ester,monohydrochloride, (S)- NSC618939