Towards peptide versions of Cram's host–guest chemistry: the synthesis of Cα,α-disubstituted glycines with binaphthol-based crowned side-chains
作者:J MAZALEYRAT、K WRIGHT、M AZZINI、A GAUCHER、M WAKSELMAN
DOI:10.1016/s0040-4039(03)00127-8
日期:2003.2.24
α,α-disubstituted α-amino acids or their precursors, possessing either an achiral frame derived from α-hydroxymethylserine, or a 2,2′,6,6′-tetrasubstituted biphenyl frame with only an axial chirality, or a frame with α-carbon chirality derived from α-methyl-(L)-DOPA, using (R)-2,2′-bis-(5-tosyloxy-3-oxa-1-pentyloxy)-1,1′-binaphthyl as alkylating agent, gave a new series of amino acids bearing binaphthol-based
各种α,α-二取代的α-氨基酸或其前体的羟基的二醚化,其具有衍生自α-羟甲基丝氨酸的非手性骨架或仅具有轴向的2,2',6,6'-四取代的联苯骨架(R)-2,2'-双-(5-甲苯磺酰氧基-3-氧杂-1-戊氧基)-1衍生自α-甲基-(L)-DOPA的具有α-碳手性的骨架, 1'-联萘作为烷基化剂,产生了一系列带有联萘酚基冠醚的氨基酸,作为构建具有拓扑结构良好定位的受体的短链肽螺旋的基础。