Total synthesis and biological assessment of benzimidazole-based analogues of epothilone A: Ambivalent effects on cancer cell growth inhibition

被引:29
|
作者
Cachoux, F
Isarno, T
Wartmann, M
Altmann, KH
机构
[1] ETH Honggerberg, ETH Zurich, Dept Chem & Appl Biosci, Inst Pharmaceut Sci, CH-8093 Zurich, Switzerland
[2] Novartis Inst Biomed Res, Oncol DA, Basel, Switzerland
关键词
antitumor agents; drug discovery; epothilones; microtubule stabilizer; natural products; total synthesis;
D O I
10.1002/cbic.200500351
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Benzimidazole-based analogues of cis- and trans-Epo A, 2 and 3, have been prepared through stereoselective total synthesis. Both compounds are highly potent antiproliferative agents, but the effects of side-chain replacement on cellular activity are ambivalent. While significantly enhanced potency is observed against a drug-sensitive human cancer cell line, 2 and 3 more susceptible to P-gp-mediated drug efflux than Epo A or frans-Epo A. © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:54 / 57
页数:4
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