Design, synthesis, and structure activity relationship analysis of new betulinic acid derivatives as potent HIV inhibitors
作者:Yu Zhao、Chin-Ho Chen、Susan L. Morris-Natschke、Kuo-Hsiung Lee
DOI:10.1016/j.ejmech.2021.113287
日期:2021.4
and evaluated for anti-HIV-1 replication activity against HIV-1NL4-3 infected MT-4 cell lines. Five known and 21 new derivatives were as or more potent than 3 (EC50 0.065 μM), while eight new derivatives were as or more potent than 4 (EC50 0.019 μM). These derivatives feature expanded structural diversity and chemical space that may improve the antiviral activity and address the growing resistance crisis
桦木酸 ( 1 ) 是一种具有良好抗 HIV 活性的天然产物先导物,其先前的修饰产生了 3 - O -(3',3'-二甲基琥珀酰)桦木酸 (bevirimat, 3 ),这是一流的 HIV 成熟抑制剂。在I 期和 IIa 期临床试验中发现了3种抗性变体后,对3进行进一步修饰产生了4种,其对野生型和3种抗性 HIV-1 的活性有所提高。在优化1的持续努力中,现已设计、合成并评估了 63 种最终产品的抗 HIV-1 复制活性,以对抗 HIV-1 NL4-3感染的 MT-4 细胞系。五种已知衍生物和 21 种新衍生物与3 (EC 50 0.065 μM) 相同或更强效,而八种新衍生物与4 (EC 50 0.019 μM) 相同或更强效。这些衍生物具有扩展的结构多样性和化学空间,可以提高抗病毒活性并解决日益严重的耐药性危机。对构效关系(SAR)相关性进行了深入分析,并构建了具有高可预测性的 3D 定量