(4S)-4-Ethyl-3,14-dioxo-3,4,12,14-tetrahydro-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinolin-4-yl (propylamino)acetate hydrochloride AIDS-013315 AIDS013315 Camptothecin propylglycinate ester hydrochloride NSC606498 (S-ISOMER, HCL SALT)