Asymmetric synthesis of (2S,3S)-3-Me-glutamine and (R)-allo-threonine derivatives proper for solid-phase peptide coupling
作者:Yoshinori Tokairin、Vadim A. Soloshonok、Hiroki Moriwaki、Hiroyuki Konno
DOI:10.1007/s00726-018-2677-5
日期:2019.3
Practical new routes for preparation of (2S,3S)-3-Me-glutamine and (R)-allo-threonine derivatives, the key structural components of cytotoxic marine peptides callipeltin O and Q, suitable for the Fmoc-SPPS, were developed. (2S,3S)-Fmoc-3-Me-Gln(Xan)-OH was synthesized via Michael addition reactions of Ni (II) complex of chiral Gly-Schiff base; while Fmoc-(R)-allo-Thr-OH was prepared using chiral Ni
用于制备(2的实用新航线小号,3小号)-3-ME谷氨酰胺和(- [R )-异基因-苏氨酸衍生物,细胞毒性海洋肽callipeltin O和Q的关键结构部件,适合的Fmoc-SPPS,分别为发达。通过手性Gly-Schiff碱的Ni(II)配合物的Michael加成反应合成了(2 S,3 S)-Fmoc-3-Me-Gln(Xan)-OH;而将Fmoc-([R )-异基因-Thr-OH,使用手性的Ni(II)络合物辅助α-差向异构化的方法,在开始的形式制备(小号)-Thr(吨丁基)-OH。