作者:Ana Lúcia Cardoso、Susana M.M. Lopes、Ana Matos Beja、Manuela Ramos Silva、Jesús M. de los Santos、Teresa M.V.D. Pinho e Melo、Francisco Palacios
DOI:10.1016/j.tet.2009.09.041
日期:2009.11
The synthesis of chiral functionalized β-amino esters via the hydride reductive amination of chiral allenes was explored. These compounds can be regarded as β-peptoids building blocks bearing a chiral side chain at the nitrogen and at the same time retaining the β-amino acid side chain. β-Enamino esters were obtained from the nucleophilic addition of α-amino esters (l-Ala, d-Ala, l-Phe, l-Leu, l-Trp
探索了通过手性烯丙基的氢化物还原胺化反应合成手性功能化β-氨基酯的方法。这些化合物可以被认为是在氮端带有手性侧链并同时保留β-氨基酸侧链的β-类肽结构单元。β-烯胺酯是从亲核加成α氨基酯的获得(升-Ala,d -Ala,升-Phe,升-Leu,升-Trp和d -Trp甲酯)于2,3-联烯酸酯轴承手性助剂,它决定了后续还原反应的立体化学结果。还证明了在还原由1- Pro和d衍生的β-烯胺酯中-脯氨酸甲酯新的手性中心的手性由α-氨基酯部分控制。