New Synthesis of 7-(3-chloropropoxy)-4-hydroxy-6-methoxyquinoline-3-carbonitrile, a Key Intermediate to Bosutinib
作者:Guoqing Zhu、Mingchen Sun、Chunping Zhu、Han Wang、Jingli Xu
DOI:10.1002/jhet.2811
日期:2017.7
A new and convenient synthesis of 7‐(3‐chloropropoxy)‐4‐hydroxy‐6‐methoxyquinoline‐3‐carbonitrile, the key intermediate to bosutinib, is described on a hectogram scale. 5‐Bromo‐2‐methoxyphenol is adopted as the starting material via the simple chemical process including Friedel‐Crafts reaction, alkylation, bromination, cyano substitution, and so on to give the 3‐amino‐2‐(2‐bromobenzoyl)acrylonitrile
以百克规模描述了一种新的便捷合成方法,它合成了Bosutinib的关键中间体7-(3-氯丙氧基)-4-羟基-6-甲氧基喹啉-3-腈。通过简单的化学过程,包括Friedel-Crafts反应,烷基化,溴化,氰基取代等,以5-溴-2-甲氧基苯酚为起始原料,得到3-氨基-2-(2-溴苯甲酰基)丙烯腈化合物图25是在K 2 CO 3 / DMF条件下进行了关键的分子内环化的图。在7个步骤中以36.9%的产率和98.71%的纯度(HPLC)获得标题产物。