Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Joseph Kaspi0
Michael Brand0
Moty Shookrun0
Oded Arad0
Date of Patent
May 5, 2009
0Patent Application Number
117110420
Date Filed
February 27, 2007
0Patent Primary Examiner
Patent abstract
The present invention provides a process for preparing highly pure montelukast and salts thereof by reacting the side-chain precursor 1-(mercaptomethyl)-cyclopropaneacetic acid with 2-(2-(3S)-(3-(7-chloro-2-quinolinyl)-ethenyl)phenyl)-3-(methanesulfonyloxypropyl)phenyl-2-propanol in a solvent mixture containing a base.
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