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机构地区:[1]空军总医院药理科药物化学室 [2]北京市医药药品公司
出 处:《中国药学杂志》1998年第2期109-109,共1页Chinese Pharmaceutical Journal
摘 要:目的:优化西替考马的合成路线、简化操作方法和提高反应产率。方法:通过改变反应起始物,重新设计反应路线。特别是利用2,2二甲基3苯基7甲氧基苯并吡喃(2)中的双键和苯酚进行FriedelCrafts烷基化反应。结果:以五步反应获到最终产物。其中在FriedelCrafts烷基化反应中高选择性的获得反式异构体,总收率达40%。结论:避免了文献报道中的高压氢化和构型转化两个反应单元,简化了合成路线并提高了反应产率。OBJECTIVE: To improve the synthesis and promote the yield for centchroman. METHODS: The reported synthetic route was simplified and redesigned, especially using 2, 2dimethyl3phenyl7methoxychromene (2) to react with phenol. RESULTS: The transisomer was got in the step of highly stereoselective FriedelCrafts alkylation and final product centchroman was got just by five steps with over all yield of 40%. CONCLUSION: The synthesis for centchroman was simplified and yield was increased with out two steps of hydrogenation in high pressure and configuration transformation which appeared in the reported route.
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