Structural Optimization of Indole Derivatives Acting at Colchicine Binding Site as Potential Anticancer Agents

详细信息    查看全文

• 作者：Dong-Jin Hwang ; Jin Wang ; Wei Li ; Duane D. Miller
• 刊名：ACS Medicinal Chemistry Letters
• 出版年：2015
• 出版时间：September 10, 2015
• 年：2015
• 卷：6
• 期：9
• 页码：993-997
• 全文大小：404K
• ISSN：1948-5875

文摘

A new series of indole analogues based on our earlier lead compound, 2-(1H-indol-5-yl)-4-(3,4,5-trimethoxyphenyl)-1H-imidazo[4,5-c]pyridine (42), was prepared as tubulin inhibitors in an effort to find a molecule with improved cytotoxic potency and metabolic stability. A series of indolyl-imidazopyridines (IIP) were synthesized and exhibited potent tubulin polymerization inhibitory activity with potent IC₅₀ values ranging from 3 to 175 nM against a panel of human melanoma and prostate cancer cell lines. Among these compounds, the 6-indolyl compound 43 showed improved cytotoxic potency (average IC₅₀ of 9.75 nM vs 55.75 nM) and metabolic stability in human liver microsomes (half-life time was 56.3 min vs. 45.4 min) as compared to previously reported 42. It was also shown to be effective against P-glycoprotein (P-gp) mediated multiple drug resistance (MDR) and taxol resistance.