会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明申请
    • Process for the preparation of dronedarone
    • 制备决奈达隆的方法
    • US20050049302A1
    • 2005-03-03
    • US10494960
    • 2002-11-06
    • Arie GutmanGennadi NisnevichLev Yudovitch
    • Arie GutmanGennadi NisnevichLev Yudovitch
    • C07D307/79C07D307/80C07D307/87A61K31/343
    • C07D307/79C07D307/80
    • The present invention provides, according to an aspect thereof, a novel process for the preparation of dronedarone [1] and pharmaceutically acceptable salts thereof. According to a preferred embodiment, the process comprises N-acetylating of p-anisidine or p-phenetidine with acetic anhydride, reacting of the obtained N-(4-alkoxyphenyl)acetamide with 2-bromohexanoyl chloride or bromide in the presence of aluminum chloride or bromide to obtain N-[3-(2-bromohexanoyl)-4-hydroxyphenyl]acetamide [6a], converting the compound [6a] into 2-butyl-5-benzofuranamine hydrochloride [12a] and subsequently converting [12a] into [1] or pharmaceutically acceptable salts thereof. In accordance with another aspect of this invention, there are provided novel intermediates, inter alia the novel compounds [6a] and [12a]. The novel intermediates of the present invention are stable, solid compounds, obtainable in high yields, which can be easily purified by crystallization and stored for long periods of time.
    • 根据本发明的一个方面,本发明提供了制备决奈达隆[1]及其药学上可接受的盐的新方法。 根据优选的实施方案,该方法包括对乙氧基苯胺或对苯乙胺与乙酸酐的N-乙酰化反应,所得的N-(4-烷氧基苯基)乙酰胺与氯化2-氯己酰氯在溴化铝存在下反应 得到N- [3-(2-溴己酰基)-4-羟基苯基]乙酰胺[6a],将化合物[6a]转化为2-丁基-5-苯并呋喃胺盐酸盐[12a],随后将[12a]转化为[1 ]或其药学上可接受的盐。 根据本发明的另一方面,提供了新的中间体,特别是新化合物[6a]和[12a]。 本发明的新型中间体是稳定的固体化合物,其可以高产率获得,其可以通过结晶容易地纯化并长时间储存​​。
    • 5. 发明授权
    • Process for the preparation of dronedarone
    • 制备决奈达隆的方法
    • US07312345B2
    • 2007-12-25
    • US10494960
    • 2002-11-06
    • Arie GutmanGennadi NisnevichLev Yudovitch
    • Arie GutmanGennadi NisnevichLev Yudovitch
    • C07D307/81C07D307/83C07C233/25C07C271/28C07C271/58
    • C07D307/79C07D307/80
    • The present invention provides, according to an aspect thereof, a novel process for the preparation of dronedarone [1] and pharmaceutically acceptable salts thereof. According to a preferred embodiment, the process comprises N-acetylating of p-anisidine or p-phenetidine with acetic anhydride, reacting of the obtained N-(4-alkoxyphenyl)acetamide with 2-bromohexanoyl chloride or bromide in the presence of aluminum chloride or bromide to obtain N-[3-(2-bromohexanoyl)-4-hydroxyphenyl]acetamide [6a], converting the compound [6a] into 2-butyl-5-benzofuranamine hydrochloride [12a] and subsequently converting [12a] into [1] or pharmaceutically acceptable salts thereof. In accordance with another aspect of this invention, there are provided novel intermediates, inter alia the novel compounds [6a] and [12a]. The novel intermediates of the present invention are stable, solid compounds, obtainable in high yields, which can be easily purified by crystallization and stored for long periods of time.
    • 根据本发明的一个方面,本发明提供了制备决奈达隆[1]及其药学上可接受的盐的新方法。 根据优选的实施方案,该方法包括对乙氧基苯胺或对苯乙胺与乙酸酐的N-乙酰化反应,所得的N-(4-烷氧基苯基)乙酰胺与氯化2-氯己酰氯在溴化铝存在下反应 得到N- [3-(2-溴己酰基)-4-羟基苯基]乙酰胺[6a],将化合物[6a]转化为2-丁基-5-苯并呋喃胺盐酸盐[12a],随后将[12a]转化为[1 ]或其药学上可接受的盐。 根据本发明的另一方面,提供了新的中间体,特别是新化合物[6a]和[12a]。 本发明的新型中间体是稳定的固体化合物,其可以高产率获得,其可以通过结晶容易地纯化并长时间储存​​。