[EN] PROCESS FOR THE PREPARATION OF TRAVOPROST<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION DE TRAVOPROST
申请人:CHINOIN GYOGYSZER ES VEGYESZET
公开号:WO2013093528A1
公开(公告)日:2013-06-27
The invention relates to a process for the preparation of travoprost of formula(I), comprising that, the compound of formula (II), is stereoselectively reduced, the resulting compound of formula (III), is if desired crystallized, the lactone group of the the compound of formula (III) is reduced, the p-phenyl-benzoyl protecting group of the thus obtained compound of formula (IV), is removed, the resulting triol of formula (V), is, if desired after crystallization, transformed by Wittig reaction into the acid of formula (VI), which is then esterified.
该发明涉及一种制备化学式(I)的曲普罗斯特的方法,包括化学式(II)的化合物进行立体选择性还原,得到化学式(III)的化合物,如有需要进行结晶,然后还原化合物的内酯基,去除所得化学式(IV)的p-苯基苯甲酰保护基,得到的三醇化合物,如有需要经结晶后,通过维特格反应转化为化学式(VI)的酸,然后酯化。