Synthesis and Biological Activity of Potent HIV-1 Protease Inhibitors Based on Phe-Pro Dihydroxyethylene Isosteres
作者:Fabio Benedetti、Federico Berti、Sara Budal、Pietro Campaner、Francesca Dinon、Alessandro Tossi、Radka Argirova、Petia Genova、Vasil Atanassov、Anton Hinkov
DOI:10.1021/jm3001136
日期:2012.4.26
describe the synthesis and biological activity of HIV-1 PR inhibitors based on four novel dihydroxyethylene isosteres of the Phe-Pro and Pro-Pro dipeptides. The isosteres, containing four stereogenic centers, were synthesized in high yield and excellent stereoselectivity via the cyclization of epoxy amines derived from α-amino acids. The inhibitors were assembled by coupling the isosteres with suitable
HIV-1 PR的拟肽抑制剂仍然是抗击艾滋病的重要资源。在这里,我们描述了基于Phe-Pro和Pro-Pro二肽的四个新型二羟基乙烯等位基因的HIV-1 PR抑制剂的合成和生物学活性。通过衍生自α-氨基酸的环氧胺的环化反应,以高收率和出色的立体选择性合成了包含四个立体生成中心的等排体。通过将等排体与合适的侧翼基团偶联来组装抑制剂,并针对重组HIV PR进行筛选,以显示在纳摩尔至微摩尔范围内的活性。进一步研究了两种在纳摩尔水平具有活性的基于Phe-Pro的抑制剂:这两种抑制剂结合了抑制HIV-1在感染的MT-2细胞中复制的能力,并且对相同细胞的细胞毒性较低,从而显示出高的治疗指数。这些结果证明了新的Phe-Pro二羟基乙烯等排酮作为强大的HIV-1 PR抑制剂核心单元的潜力。