(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 123948-87-8 1H-Pyrano(3',4':6,7)indolizino(1,2-b)quinoline-3,14(4H,12H)-dione, 10-((dimethylamino)methyl)-4-ethyl-4,9-dihydroxy-, (S)- Hycamptamine Hycamtin Topotecan Topotecane [INN-French] Topotecanum [INN-Latin]