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发明名称
一种氢溴酸达非那新的新生产工艺
摘要
本发明涉及一种生产氢溴酸达非那新的新生产工艺。本工艺以3-(s)-(1-氨甲酰基-1,1-二苯基)吡咯烷及其盐为原料,以季铵盐与碘化钾为催化剂,与5-(2-氯乙基)-2,3-二氢苯并呋喃在水与甲苯两相条件下反应,所得产物在混合溶剂中与氢溴酸成盐,得高纯度的氢溴酸达非那新成品。
申请公布号
CN101665488A
申请公布日期
2010.03.10
申请号
CN200910180242.2
申请日期
2009.10.10
申请人
北京紫萌同达科技有限公司
发明人
张伟平
分类号
C07D405/06(2006.01)I
主分类号
C07D405/06(2006.01)I
代理机构
代理人
主权项
1.一种氢溴酸达非那新即(S)-2-{1-[2-(2,3-二氢苯并呋喃-5-基)乙基]-3-吡咯烷基}-2,2-二苯基乙酰胺氢溴酸盐的生产工艺。其特征在于是以原料1:3-(s)-(1-氨甲酰基-1,1-二苯基)吡咯烷或其盐与原料2:5-(2-氯乙基)-2,3-二氢苯并呋喃,加入一定量的季铵盐和碘化钾作催化剂或不加,以碳酸钾或碳酸钠作碱,在水与芳香烃两相体系中进行烷基化反应。得达非那新碱。达非那新碱在混合有机溶剂中与氢溴酸成盐,再重结晶精制得精品氢溴酸达非那新。
地址
102209北京市昌平区北七家镇白庙工业园16号
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