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公开(公告)号:US08207343B2
公开(公告)日:2012-06-26
申请号:US12673916
申请日:2009-05-25
IPC分类号: C07D215/18
CPC分类号: C07D215/18
摘要: A method for the preparation of montelukast and salts thereof has been described. The method comprises of following steps: (a) (S)-1-(3-((E)-2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(2-isopropenylphenyl)propyl methane sulphonate (styrene mesylate salt) (b) coupling with 1-(mercapto methyl)cyclopropane acetic acid followed by salification with an amine gives styrene amine salt (c) Converting styrene amine salt to Montelukast amine salt (d) Converting Montelukast amine salt to Montelukast free acid and or its required alkali/alkaline salt.
摘要翻译: 已经描述了制备孟鲁司特及其盐的方法。 该方法包括以下步骤:(a)(S)-1-(3 - ((E)-2-(7-氯喹啉-2-基)乙烯基)苯基)-3-(2-异丙烯基苯基)丙基甲磺酸盐 (苯乙烯甲磺酸盐)(b)与1-(巯基甲基)环丙烷乙酸偶联,然后与胺成盐,得到苯乙烯胺盐(c)将苯乙烯胺盐转化为蒙特鲁卡斯特胺盐(d)将Montelukast胺盐转化为Montelukast 酸和/或其所需的碱/碱盐。