申请人:GLYCOM AS
公开号:WO2012049257A1
公开(公告)日:2012-04-19
The present invention provides: in a first aspect, a method for the preparation of L-fucose, wherein L-fucose precursors are produced from pectin and L-fucose is produced from the L-fucose precursors; in a second aspect, a method for the preparation of L-fucose from D-galacturonic acid or a salt thereof, wherein L-fucose precursors are produced from D-galacturonic acid or a salt thereof, and L-fucose is produced from the L-fucose precursors; and an L-fucose precursoras shown in Formula A below, wherein R is a linear or branched chain saturated hydrocarbon group with 1-6 carbon atoms, such as methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, s-butyl, t-butyl, n-hexyl, etc., preferably a methyl group.
本发明提供:在第一方面,一种制备L-岩藻糖的方法,其中L-岩藻糖前体从果胶中产生,L-岩藻糖从L-岩藻糖前体中产生;在第二方面,一种从D-半乳糖醛酸或其盐制备L-岩藻糖的方法,其中L-岩藻糖前体从D-半乳糖醛酸或其盐中产生,L-岩藻糖从L-岩藻糖前体中产生;以及如下所示的L-岩藻糖前体,其中R是具有1-6个碳原子的线性或支链饱和碳氢化合物基团,如甲基、乙基、正丙基、异丙基、正丁基、异丁基、正丁基、叔丁基、正己基等,优选为甲基。