... : 349.38494-Ethyl-4-hydroxy-1H-pyrano-[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione; (+)-Camptothecin; Camptothecin ... , Camptotheca acuminata; 4-Ethyl-4-hydroxy-1H-pyrano-[3,4:6 ... ,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione; Camptothecin,95 ...