Process

Details Process Process

C - Chemistry, Metallurgy

07

D

C07D 215/18 (2006.01)

Patent

CA 2658473

A process of preparing montelukast, or a pharmaceutically acceptable salt thereof, which process comprises reacting a protected intermediate of formula (II) as defined in the specification with a cyclopropyl intermediate.

L'invention concerne un procédé de préparation du montélukast, ou d'un sel pharmaceutiquement acceptable de celui-ci, lequel procédé comprend la réaction d'un intermédiaire protégé représenté par la formule (II) telle que définie dans la description avec un intermédiaire cyclopropylé.

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