The present invention relates to the field of drug synthesis, and particularly relates to an intermediate of eribulin and a synthesis method and use thereof. The present invention provides an intermediate useful for the synthesis of halichondrin B, eribulin or an analog thereof, particularly a structural fragment C27-C35 thereof, and a preparation method and use thereof. The starting materials of the synthetic route disclosed herein are cheap and easy to obtain, and the optical purity of the starting materials can be ensured, so that the optical purity of the structural fragment C27-C35 in halichondrin B, eribulin or the analog thereof is ensured; steps for constructing a chiral center of the structural fragment C27-C35 feature higher diastereoselectivity and yield, in particular preparation methods of compounds of formulae (X), (XI), (XVI) and (XV); by-products of partial reactions can be removed only by recrystallization, which results in easy purification and significant reduce in cost.
本发明涉及药物合成领域,尤其涉及一种
麦角林的中间体及其合成方法和用途。本发明提供了一种可用于合成卤黄
芪 B、
麦角林或其类似物,特别是其 C27-C35 结构片段的中间体及其制备方法和用途。本发明所公开的合成路线的起始原料廉价易得,且能保证起始原料的光学纯度,因此能保证卤化
龙胆素 B、麦角苷或其类似物中结构片段 C27-C35 的光学纯度;构建结构片段 C27-C35 手性中心的步骤具有更高的非对映选择性和收率,特别是式 (X)、(XI)、(XVI) 和 (XV) 化合物的制备方法;部分反应的副产物只需通过重结晶即可去除,从而易于纯化并显著降低成本。