Stereoselective Synthesis of [<scp>l</scp>-Arg-<scp>l</scp>/<scp>d</scp>-3-(2-naphthyl)alanine]-Type (<i>E</i>)-Alkene Dipeptide Isosteres and Its Application to the Synthesis and Biological Evaluation of Pseudopeptide Analogues of the CXCR4 Antagonist FC131
作者:Hirokazu Tamamura、Kenichi Hiramatsu、Satoshi Ueda、Zixuan Wang、Shuichi Kusano、Shigemi Terakubo、John O. Trent、Stephen C. Peiper、Naoki Yamamoto、Hideki Nakashima、Akira Otaka、Nobutaka Fujii
DOI:10.1021/jm049429h
日期:2005.1.1
D-type (E)-alkene dipeptide isosteres (EADIs) that have unnatural side chains at the alpha-position were synthesized by the combination of stereoselective aziridinyl ring-opening reactions and organozinc-copper-mediated anti-S(N)2' reactions toward a single substrate of gamma,delta-cis-gamma,delta-epimino (E)-alpha,beta-enoate. The utility of this methodology was demonstrated by the stereoselective synthesis
通过立体选择性氮丙啶基开环反应和有机锌-铜介导的抗氧化剂的结合,合成了在α-位具有非天然侧链的L,L-型和L,D-型(E)-烯烃二肽等排体(EADIs)。 -S(N)2'反应朝向单个底物的伽玛,δ-顺式-γ,δ-表皮(E)-α,β-烯酸酯。此方法的实用性通过立体选择性合成L-Arg-L / D-3-(2-萘基)丙氨酸(Nal)的一组非对映体EADI组成,该化合物包含在一个小的CXCR4拮抗剂FC131 [环(- D-Tyr-Arg-Arg-Nal-Gly-)]。此外,(Nal-Gly)型EADI是由二碘化sa(SmI(2))诱导的γ-乙酰氧基-α,β-烯酸酯的还原反应合成的。几个FC131类似物,其中插入了这些EADI以降低其肽的特性,