Inhibitors of HIV-1 attachment. Part 4: A study of the effect of piperazine substitution patterns on antiviral potency in the context of indole-based derivatives
作者:Tao Wang、John F. Kadow、Zhongxing Zhang、Zhiwei Yin、Qi Gao、Dedong Wu、Dawn DiGiugno Parker、Zheng Yang、Lisa Zadjura、Brett A. Robinson、Yi-Fei Gong、Wade S. Blair、Pei-Yong Shi、Gregory Yamanaka、Pin-Fang Lin、Nicholas A. Meanwell
DOI:10.1016/j.bmcl.2009.07.076
日期:2009.9
4-Fluoro- and 4-methoxy-1-(4-benzoylpiperazin-1-yl)-2-(1H-indol-3-yl) ethane-1,2-dione (2 and 3, respectively) have been characterized as potent inhibitors of HIV-1 attachment that interfere with the interaction of viral gp120 with the host cell receptor CD4. As part of an effort to understand fundamental aspects of this pharmacophore, discovered originally using a high throughput cell-based screen, modification and substitution of the piperazine ring was examined in the context of compounds 6a-ah. The piperazine ring was shown to be a critical element of the HIV-1 attachment inhibiting pharmacophore, acting as a scaffold to deploy the indole glyoxamide and benzamide in a topographical relationship that complements the binding site on gp120. (C) 2009 Elsevier Ltd. All rights reserved.