Synthesis and Structure鈥揂ctivity Relationships of N-Methyl-5,6,7-trimethoxylindoles as Novel Antimitotic and Vascular Disrupting Agents

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• 作者：Deng-Gao Zhao ; JianJun Chen ; Ya-Rong Du ; Yan-Yan Ma ; Ya-Xiong Chen ; Kun Gao ; Bu-Rong Hu
• 刊名：Journal of Medicinal Chemistry
• 出版年：2013
• 出版时间：February 28, 2013
• 年：2013
• 卷：56
• 期：4
• 页码：1467-1477
• 全文大小：475K
• 年卷期：v.56,no.4(February 28, 2013)
• ISSN：1520-4804

文摘

Several new series of 5,6,7-trimethoxyindole derivatives were synthesized and their structure鈥揳ctivity relationships (SARs) were studied. Some of these compounds exhibited strong antiproliferative activities in the submicromolar range. N-Methyl-5,6,7-trimethoxylindoles 21 and 31 displayed the highest antiproliferative activities, with IC₅₀ values ranging from 22 to 125 nM in four human cancer cell lines and activated human umbilical vein endothelial cells (HUVECs). In addition to vascular disrupting activity verified by in vitro assays, compounds 21 and 31 displayed much higher selectivity for activated HUVECs versus quiescent HUVECs than those of colchicine and combretastatinA-4. The polymerization of cancer cell tubulin was inhibited and the cell cycle was arrested in the G2/M phase after treatment with 21 and 31. It was showed that 21 disrupted tumor vasculature by use of in vivo assay. Our results suggest that these two new compounds we synthesized may become the promising leads for the development of vascular disrupting agents.