Synonyms: 4-Ethyl-4,9-dihydroxy-10-[(dimethylamino)methyl]-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione;9-Dimethylaminomethyl-10-hydroxycamptothecin;(S)-10-((Dimethylamino)methyl)-4-ethyl-4,9-dihydroxy-1H-pyrano(3',4':6,7)indolizino(1,2-b)quinoline-3,14(4H,12H)-dione;