Inhibitors of the protease from human immunodeficiency virus: synthesis, enzyme inhibition, and antiviral activity of a series of compounds containing the dihydroxyethylene transition-state isostere
作者:Suvit Thaisrivongs、Steve R. Turner、Joseph W. Strohbach、Ruth E. TenBrink、W. Gary Tarpley、Thomas J. McQuade、Robert L. Heinrikson、Alfredo G. Tomasselli、John O. Hui、W. Jeffrey Howe
DOI:10.1021/jm00060a001
日期:1993.4
A number of potential HIV protease inhibitory peptides that contain the dihydroxyethylene isostere were prepared and evaluated for their enzyme binding affinity and antiviral activity in cell cultures. From the template of a previously reported active peptide A, modifications at the N- and C-terminal groups were assessed for potential maintenance of good inhibitory activity of the resulting peptides
制备了许多含有二羟基乙烯等排物的潜在HIV蛋白酶抑制肽,并评估了它们在细胞培养物中的酶结合亲和力和抗病毒活性。从先前报道的活性肽A的模板中,评估在N-和C-末端基团上的修饰以潜在维持所得肽的良好抑制活性。在发现的活性肽中,肽X显示出有效的酶抑制活性。有趣的是,先前报道的用于制备非常活性的HIV蛋白酶抑制肽的有效的1(S)-氨基-2(R)-羟基茚满C-末端基团不能应用于肽XVIII的模板。以肽A的X射线晶体结构为起点,研究了肽XVIII的分子模型,以便研究活性部位裂口中肽XVIII的可能构象。获得了肽A和XVIII的相对结合构象,尽管在本报告中对许多同类肽的结合亲和力差的原因尚不十分清楚。然而,更重要的是,发现肽XVIII在HIV-1 / PBMC分析中显示出比参考肽A更有效的抗病毒活性,参考肽A先前据报道在该分析中的功效与逆转录酶抑制剂AZT大致相等。尽管在本报告中对许多同类肽的结合亲和力