[EN] PROCESS FOR THE PREPARATION OF BIMOSIAMOSE<br/>[FR] PROCÉDÉ D'ÉLABORATION DE BIMOSIAMOSE
申请人:REVOTAR BIOPHARMACEUTICALS AG
公开号:WO2011138365A1
公开(公告)日:2011-11-10
A process for the preparation of 1,6-Bis-[3-(3-carboxymethylphenyl)-4-(2-α-D-mannopyranosyloxy)-phenyl] hexane (I) which comprises the steps of converting the compound (2'-Methoxy-biphenyl-3-yl)-acetic acid (A) into the (2'-Methoxy-biphenyl-3-yl)-acetic acid ethyl ester, which is reacted with adipoyl chloride to 1,4-Bis-[3-(3-carboethoxymethylphenyl)-4-methoxybenzoyl]-butane (B) which is catalytically reduced to 1,6-Bis-[3-(3-carboethoxy-methylphenyl)-4-methoxy- phenyl] -hexane (C), which is reacted with boron tribromide in a solvent to 1,6-Bis-[3-(3- carboethoxy-methylphenyl)-4-hydroxyphenyl]-hexane (D), which is reacted with a mannopyranosyl derivative to obtain 1,6-Bis-[3-(3-carboethoxy-methylphenyl)-4-(tetra-0- pivaloyl-α-D-mannopyranosyloxy)-phenyl]-hexane (E), which is reacted to form 1,6-Bis- [3-(3-carboxymethyl-phenyl)-4-(2-α-D-mannopyranosyloxy)-phenyl] hexane, which is re- crystallized, leads to the product (I) with high purity.
一种制备1,6-双-[3-(3-羧甲基苯基)-4-(2-α-D-甘露糖基氧基)-苯基]己烷(I)的方法,包括以下步骤:将化合物(2'-甲氧基联苯-3-基)-乙酸(A)转化为(2'-甲氧基联苯-3-基)-乙酸乙酯,然后与己二酰氯反应生成1,4-双-[3-(3-羧乙酰甲基苯基)-4-甲氧基苯甲酰基]-丁烷(B),经催化还原得到1,6-双-[3-(3-羧乙酰甲基苯基)-4-甲氧基苯基]-己烷(C),然后在溶剂中与三溴化硼反应生成1,6-双-[3-(3-羧乙酰甲基苯基)-4-羟基苯基]-己烷(D),再与甘露糖衍生物反应得到1,6-双-[3-(3-羧乙酰甲基苯基)-4-(四-0-邻甲基苯基)-α-D-甘露糖基氧基-苯基]-己烷(E),最后反应得到1,6-双-[3-(3-羧甲基苯基)-4-(2-α-D-甘露糖基氧基)-苯基]己烷,再经过重结晶,得到高纯度的产物(I)。