The invention relates to a method for preparing inner ester ganglioside derivates which comprises:
(a) dissolving a ganglioside or a mixture of gangliosides obtained from a mammal in a non-aqueous organic solvent;
(b) converting the carboxylate groups in the gangliosides to carboxyl groups or a salt thereof by means of ion exchange; and
(c) reacting the resultant ganglioside or mixture of gangliosides with a lactonization reagent to form at least one lactonic bond in said inner ester ganglioside derivatives.
本发明涉及一种制备内
酯神经节苷脂衍
生物的方法,该方法包括
(a) 将从哺乳动物体内获得的
神经节苷脂或
神经节苷脂混合物溶解在非
水有机溶剂中;
(b) 通过离子交换将
神经节苷脂中的羧基转化为羧基或其盐;以及
(c) 使得到的
神经节苷脂或
神经节苷脂混合物与内
酯化试剂反应,在所述内
酯 神经节苷脂衍
生物中形成至少一个内
酯键。