Total synthesis and determination of the stereochemistry of 2-amino-3-cyclopropylbutanoic acid, a novel plant growth regulator isolated from the mushroom Amanita castanopsidis Hongo
[EN] SYNTHESIS OF (2S,3R,4R)-4,5-DIHYDROXYISOLEUCINE AND DERIVATIVES<br/>[FR] SYNTHÈSE DE (2S,3R,4R)-4,5-DIHYDROXYISOLEUCINE ET DE SES DÉRIVÉS
申请人:HEIDELBERG PHARMA RES GMBH
公开号:WO2019185877A1
公开(公告)日:2019-10-03
The invention relates to a method for the preparation of a 4,5-dihydroxyisoleucine derivative comprising the steps of asymmetric Claisen rearrangement of a Z-aminocrotyl-glycin ester and subsequent kinetic resolution of the product diastereomer mix by acylase, and subsequent Sharpless dihydroxylation of the resulting 2-amino-3-methylpent-4-enoicacid derivative.
SYNTHESIS OF (2S,3R,4R)-4,5-DIHYDROXYISOLEUCINE AND DERIVATIVES
申请人:Heidelberg Pharma GmbH
公开号:EP3546447A1
公开(公告)日:2019-10-02
The invention relates to a method for the preparation of a 4,5-dihydroxyisoleucine derivative comprising the steps of asymmetric Claisen rearrangement of a Z-aminocrotyl-glycin ester and subsequent kinetic resolution of the product diastereomer mix by acylase, and subsequent Sharpless dihydroxylation of the resulting 2-amino-3-methylpent-4-enoicacid derivative
The present invention relates to the chemical synthesis of α-amanitin and its derivatives. The present invention also relates to intermediate products of the α-amanitin synthesis.