(5R)-Dimethylbenzene-camptothecin
(5R)-Dimethylbenzene-camptothecin (Compound 6a) is a camptothecin derivative. (5R)-Dimethylbenzene-camptothecin is cytotoxic to tumor cells and can induce apoptosis and cell cycle arrest. (5R)-Dimethylbenzene-camptothecin has anti-tumor activity.