The subject of the invention is a novel process for the preparation of Carboprost tromethamine salt where alkylation the enone of the general formula (II) is carried out in the presence of a chiral auxiliary in aprotic solvent with a Grignard reagent. The methyl ester epimers of formula (VII) are separated by gravity silicagel chromatography and the salt formation is carried out by using solid tromethamine base.
本发明的主题是一种制备Carboprost tromethamine盐的新工艺,其中在无极溶剂中使用Grignard试剂,在手性辅助剂的存在下烷基化通式(II)的烯酮。公式(VII)的甲酯外消旋体通过重力
硅胶色谱分离,并使用固体tromethamine碱进行盐形成。