Synthesis of amino-diamondoid pharmacophores <i>via</i> photocatalytic C–H aminoalkylation
作者:William K. Weigel、Hoang T. Dang、Hai-Bin Yang、David B. C. Martin
DOI:10.1039/d0cc02804e
日期:——
direct C–H aminoalkylation reaction using two light-activated H-atom transfer catalyst systems that enable the introduction of protected amines to native adamantane scaffolds with C–C bond formation. The scope of adamantane and imine reaction partners is broad and deprotection provides versatile amine and amino acid building blocks. Using readily available chiral imines, the enantioselective synthesis
我们报告了使用两种光活化 H 原子转移催化剂系统的直接 C-H 氨基烷基化反应,该反应能够将受保护的胺引入具有 C-C 键形成的天然金刚烷支架。金刚烷和亚胺反应伙伴的范围很广,去保护提供了通用的胺和氨基酸构建块。使用容易获得的手性亚胺,还描述了沙格列汀核心和金刚乙胺衍生物的对映选择性合成。
An expeditious route to sterically encumbered nonproteinogenic α-amino acid precursors using allylboronic acids
作者:Samrat Sahu、Ganesh Karan、Lisa Roy、Modhu Sudan Maji
DOI:10.1039/d1sc06259j
日期:——
non-proteinogenic α-amino acid precursors in good yields and diastereoselectivities. Gram-scale synthesis, broad tolerance of functional groups, excellent stereodivergence, post-synthetic modifications, and easy removal of the chiral auxiliary are some of the key highlights. The protocol is applicable to various amino acids and short peptides, resulting in the incorporation of these precursors at the N-terminal
开发了使用烯丙基硼酸对N-叔丁烷亚磺酰基 α-亚氨基酯进行非对映选择性烯丙基化,以获得具有良好收率和非对映选择性的光学活性非蛋白原 α-氨基酸前体。革兰氏规模合成、广泛的官能团耐受性、出色的立体发散性、合成后修饰以及手性助剂的轻松去除是其中的一些关键亮点。该协议适用于各种氨基酸和短肽,导致这些前体在 N 端位置的结合。