Fused heterocyclic compounds bearing bridgehead nitrogen as potent HIV-1 NNRTIs. Part 1: Design, synthesis and biological evaluation of novel 5,7-disubstituted pyrazolo[1,5-a]pyrimidine derivatives
作者:Ye Tian、Deping Du、Diwakar Rai、Liu Wang、Huiqing Liu、Peng Zhan、Erik De Clercq、Christophe Pannecouque、Xinyong Liu
DOI:10.1016/j.bmc.2014.02.029
日期:2014.4
In our continuous efforts to identify novel potent HIV-1 NNRTIs, a novel class of 5,7-disubstituted pyrazolo[1,5-a]pyrimidine derivatives were rationally designed, synthesized and evaluated for their anti-HIV activities in MT4 cell cultures. Biological results showed that most of the tested compounds displayed excellent activity against wild-type HIV-1 with a wide range of EC50 values from 5.98 to
在我们不断努力确定新型有效的HIV-1 NNRTIs的过程中,合理设计,合成和评估了一类新型的5,7-二取代的吡唑并[1,5- a ]嘧啶衍生物在MT4细胞培养物中的抗HIV活性。生物学结果表明,大多数测试化合物对野生型HIV-1表现出优异的活性,其EC 50值范围从5.98至0.07μM。在活性化合物中,发现5a是最有前途的类似物,对野生型HIV-1的EC 50为0.07μM,选择性指数非常高(SI,3999)。化合物5a比参考药物奈韦拉平(2倍)和地拉夫定(2倍)更有效。为了进一步确认它们的结合靶标,还进行了HIV-1 RT抑制测定。此外,讨论了新合成化合物之间的SAR分析,并通过分子建模研究合理化了活性化合物5a的结合方式。