Novel peptide isosteres that were designed to inhibit the binding of the HIV surface glycoprotein (gp120) to the T cell surface glycoprotein CD4
作者:Michael G. B. Drew、Stephen Gorsuch、John Mann、Shimon Yoshida
DOI:10.1039/a800756j
日期:——
The cis- and trans-isomers of (2S)-2-[3′(RS)-3′-benzyl-3′-benzyloxycarbonylprop-1′-enyl]-N-methoxycarbonylcarbonylpyrrolidines have been prepared from a Wittig reaction between (S)-N-Boc-prolinal and the phosphorus ylide from (2RS)-3-iodo-2-benzyl-1-triisopropylsilyloxypropane. In addition, (2S)-N-methoxycarbonylcarbonyl-2-[(3′RS)-1-oxo-3′-benzyl-3′-benzyloxycarbonylpropyl]pyrrolidine was prepared from the cis-alkene produced in the Wittig reaction. These were intended as peptide isosteres of the known inhibitors of HIV-lymphocyte binding N-methoxycarbonylcarbonylprolylphenylalanyl benzyl esters, but did not possess such activity.
(2S)-2-[3′(RS)-3′-苄基-3′-苄氧羰基丙-1′-烯基]-N-甲氧羰基吡咯烷的顺式和反式异构体是由(S)-N-叔丁氧羰基脯氨醛和(2RS)-3-碘-2-苄基-1-三异丙基硅氧基丙烷的磷酰亚胺通过威蒂希反应制备的。此外,(2S)-N-甲氧基羰基-2-[(3′RS)-1-氧代-3′-苄基-3′-苄氧基羰基丙基]吡咯烷是由维蒂希反应生成的顺式烯制备的。这些肽本打算作为已知的艾滋病毒淋巴细胞结合抑制剂 N-甲氧基羰基羰基丙氨酰苯丙苄酯的肽等效物,但并不具有这种活性。