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。
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。
The present invention relates to enantiopure, non-proteinogenic α-amino acids, and methods for the synthesis thereof, that are useful as, or in the synthesis of, pharmaceutical, nutraceutical or agricultural products.
An efficient synthesis of both R- and S-enantiomers of 2-arylallyl-alpha-amino acids via a diastereoselective Pd/In mediated catalytic allylation of chiral N-sulfinyl-alpha-imino esters is described. The potential for further enhancement of molecular complexity and creating contiguous chiral centres by interfacing these processes with catalytic cyclisation-anion capture methodology is demonstrated. (c) 2006 Elsevier Ltd. All rights reserved.
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。