[EN] METHOD FOR SYNTHESIS OF DIAZABICYCLO[6.2.0]DECANE RELATED COMPOUNDS<br/>[FR] PROCÉDÉ DE SYNTHÈSE DE COMPOSÉS APPARENTÉS AU DIAZABICYCLO[6.2.0] DÉCANE
申请人:EISAI R&D MAN CO LTD
公开号:WO2020146568A1
公开(公告)日:2020-07-16
A method for the synthesis of diazabicyclo[6.2.0]decane compounds is provided. The synthesis proceeds by stereoselective synthesis of a chiral lactone followed by azetidine formation via a series of chemoselective reactions. Bicyclization results with the formation of diazobicyclo[6.2.0]decane related compounds.
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。