The present invention is directed to a novel salt of a montelukast intermediate, the process of preparation thereof, the use of such salt in the preparation of sodium montelukast and a process for the preparation of sodium montelukast making use of said salt.
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(2012/10/07)
Camphorsulfonic salt of a key Montelukast intermediate
The present invention is directed to a novel salt of a montelukast intermediate, the process of preparation thereof, and use of such salt in the preparation of sodium montelukast via a new amine salt of montelukast.
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(2012/10/18)
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