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
本发明涉及一种制备 4,5-二羟基
异亮氨酸衍
生物的方法,该方法包括以下步骤:Z-
氨基
丙烯酰-甘
氨酸酯的不对称克莱森重排,随后通过酰化酶对产物非对映异构体混合进行动力学解析,以及随后对得到的 2-
氨基-3-甲基戊-4-烯酸衍
生物进行 Sharpless 二羟基化反应。