常山酮的合成方法研究Study on the Synthetic Technique of Halofuginone
顾艳艳,刘世旭,王诗玺,万升标,江涛
摘要(Abstract):
本文对常山酮(halofuginone)的合成方法进行了研究和改进,以2-甲基-3-羟基吡啶为起始原料,其甲基化产物与乙腈加成后经Rh/Al2O3选择性还原得(3-甲氧基-2-哌啶基)-丙酮,再经溴代、N-保护后与6-氯-7-溴-4(3H)-喹唑啉酮偶联,产物经水解脱保护得目标化合物6-氯-7-溴-3-(3-(3-羟基-2-哌啶基)-丙酮基)-4(3H)-喹唑啉酮氢溴酸盐,通过6步反应制得了常山酮,总收率为11.6%,为常山酮的工业化生产提供了可能。目标产物和各步中间体结构经MS1、H NMR和13CNMR确证。
关键词(KeyWords): 常山酮;抗球虫药;合成方法
基金项目(Foundation): 青岛市科技攻关计划(08-2-4-4-nsh);; 科技部科技人员服务企业计划(2009GJC60017)资助
作者(Author): 顾艳艳,刘世旭,王诗玺,万升标,江涛
DOI: 10.16441/j.cnki.hdxb.2011.09.011
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