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公开(公告)号:EP3201171B1
公开(公告)日:2020-04-15
申请号:EP15847357.9
申请日:2015-09-30
发明人: QIU, Yinhua , WU, Zhengyuan , CHEN, Song , ZHANG, Haoning
IPC分类号: C07D319/08 , C07C213/00
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公开(公告)号:EP3201171A1
公开(公告)日:2017-08-09
申请号:EP15847357.9
申请日:2015-09-30
发明人: QIU, Yinhua , WU, Zhengyuan , CHEN, Song , ZHANG, Haoning
IPC分类号: C07C213/08 , C07C213/10 , C07C217/10 , C07C217/28 , C07C217/40
CPC分类号: C07D319/08 , C07C213/00
摘要: A method of preparing an intermediate of salmeterol (Compound 1, 2-amino-1-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)ethanol) includes: reacting compound 2 with 2-methoxypropene in a first organic solvent to produce a reaction solution including compound 3, compound 2 including a 2-bromo precursor of Compound 1; reacting compound 3 with a nitrogen source to produce compound 4; reacting compound 4 with sodium borohydride in a second organic solvent to produce compound 5; and debenzylating compound 5 by ammonium formate/palladium-carbon catalytic transfer hydrogenation in a third organic solvent to produce Compound 1. A method of preparing salmeterol includes preparing Compound 1, and reacting Compound 1 to prepare salmeterol.
摘要翻译: 制备沙美特罗中间体(化合物1,2-氨基-1-(2,2-二甲基-4H-1,3-苯并二恶英-6-基)乙醇)的方法包括:使化合物2与2-甲氧基丙烯在 第一有机溶剂中以产生包含化合物3,化合物2(包括化合物1的2-溴前体)的反应溶液; 使化合物3与氮源反应以产生化合物4; 使化合物4与硼氢化钠在第二有机溶剂中反应以产生化合物5; 并在第三有机溶剂中通过甲酸铵/钯 - 碳催化转移氢化将化合物5去苄基化以产生化合物1.制备沙美特罗的方法包括制备化合物1,并使化合物1反应以制备沙美特罗。
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