(20S) esters of camptothecin analogs are provided. The compounds are (20S) esters of an oxyalkanoic acid and camptothecin, which is optionally substituted at the 7, 9, 10, 11, and 12 positions of the camptothecin ring. The compounds are useful for treating cancer.
Novel camptothecin derivatives. part 1: oxyalkanoic acid esters of camptothecin and their in vitro and in vivo antitumor activity
作者:Li-Xi Yang、Xiandao Pan、Hui-Juan Wang
DOI:10.1016/s0960-894x(02)00153-1
日期:2002.5
cells in vitro by the colony formation assay and in vivo. These newly synthesized derivatives show a dramatically higher chemotherapeutic activity in killing human cancer cells than the parent drug, camptothecin, and clinically available drugs, irinotecan and taxol.