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.