Structure-Based Design, Synthesis, and Biological Evaluation of Conformationally Restricted Novel 2-Alkylthio-6-[1-(2,6-difluorophenyl)alkyl]- 3,4-dihydro-5-alkylpyrimidin-4(3<i>H</i>)-ones as Non-nucleoside Inhibitors of HIV-1 Reverse Transcriptase
作者:Antonello Mai、Gianluca Sbardella、Marino Artico、Rino Ragno、Silvio Massa、Ettore Novellino、Giovanni Greco、Antonio Lavecchia、Chiara Musiu、Massimiliano La Colla、Chiara Murgioni、Paolo La Colla、Roberta Loddo
DOI:10.1021/jm010853h
日期:2001.8.1
5-Alkyl-2-(alkylthio)-6-(2,6-difluorobenzyl)-3,4-dihydropyrimidin-4(3H)-ones (S-DABOs, 2) have been recently described as a new class of human immunodeficiency virus type 1 (HIV-1) non-nucleoside reverse transcriptase (RT) inhibitors (NNRTIs) active at nanomolar concentrations (Mai, A. et al. J. Med. Chem. 1999, 42, 619-627). In pursuing our lead optimization efforts, we designed novel conformationally
最近已将5-烷基-2-(烷硫基)-6-(2,6-二氟苄基)-3,4-二氢嘧啶-4(3H)-ones(S-DABOs,2)描述为一类新的人类免疫缺陷在纳摩尔浓度下具有活性的病毒1型(HIV-1)非核苷逆转录酶(RT)抑制剂(Mai,A. et al.J.Med.Chem.1999,42,619-627)。为了进行领先的优化工作,我们设计了新颖的构象受限的S-DABO,3,其苄基碳原子(Y = Me)和嘧啶5位(R = Me)具有甲基。构象分析和对接模拟表明,两种甲基的存在将显着降低构象柔性,而不会损害R对映异构体适合RT非核苷结合口袋的能力。要发展结构与活动的关系,我们准备了几种3型同源物,它们属于胸腺嘧啶(R = Me)和尿嘧啶(R = H)系列,具有各种2-烷硫基侧链(X = Me,i-Pr,n-Bu,i-Bu,s -Bu,c-戊基和c-己基)和不同于2,6-二氟苯基(Ar =苯基,2,