[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.
该发明涉及一种制备4,5-二羟基异亮氨酸衍生物的方法,包括Z-氨基环丙基甘氨酸酯的不对称克莱森重排步骤,随后通过酰化酶对产物对映体混合物进行动力学拆分,以及随后对所得的2-氨基-3-甲基戊-4-烯酸衍生物进行夏普利斯二羟基化的步骤。