C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 215/18 (2006.01) A61P 11/06 (2006.01)
Patent
CA 2673098
The present invention relates to a method for preparing montelukast, an inhibitor against leukotrienes, and an intermediate used therein. According to the inventive method, high-purity montelukast or its sodium salt can be prepared in a high yield.
L'invention concerne un procédé de préparation de montelukast, un inhibiteur des leukotriènes, et un produit intermédiaire utilisé dans ce procédé. Le procédé permet de préparer avec un rendement élevé du montelukast de grande pureté ou un sel sodique de ce composé.
Chang Young-Kil
Lee Gwan Sun
Lee Jaeheon
Park Chul Hyun
Park Eun-Ju
Cassan Maclean
Hanmi Holdings Co. Ltd.
Hanmi Pharm. Co. Ltd.
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