10-Methoxycamptothecin
10-Methoxycamptothecin is a natural bioactive derivative of camptothecin (CPT) isolated from Camptotheca acuminata, and has been confirmed to possess high anti-cancer properties. 10-Methoxycamptothecin has higher cytotoxicity than 10-hydroxycamptothecin by testing antitumor activity against 2774 cell lines[1].