Drying methods of montelukast sodium by azeotropic removal...

Details Drying methods of montelukast sodium by azeotropic removal... Drying methods of montelukast sodium by azeotropic removal...

C - Chemistry, Metallurgy

07

D

C07D 215/18 (2006.01)

Patent

CA 2625285

The invention encompasses amorphous montelukast sodium having less than about 50 ppm heptane or less than about 100 ppm hexane, less than about 150 ppm toluene, and less than about 2500 ppm C1-C5 alcohols, as well as processes for its preparation.

La présente invention concerne le montélukast sodique amorphe ayant environ moins de 50 ppm d'heptane ou environ moins de 100 ppm d'hexane, environ moins de 150 ppm de toluène et environ moins de 2500 ppm d'alcools en C<SUB>1</SUB> à C<SUB>5</SUB>, ainsi que ses procédés de préparation.

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