Dexlansoprazole process and polymorphs

Details Dexlansoprazole process and polymorphs Dexlansoprazole process and polymorphs

C - Chemistry, Metallurgy

07

D

C07D 403/12 (2006.01) C07D 235/24 (2006.01) C07D 235/28 (2006.01)

Patent

CA 2717578

Processes for the preparation of dexlansoprazole, an amorphous form of dexlansoprazole, a solid dispersion of amorphous dexlansoprazole and a pharmaceutically acceptable carrier, and processes for their preparation. Also provided are crystalline compounds 2-[(R)-[(4-chloro-3-methyl-2-pyridinyl)methyl]sulfinyl]- 1H-benzimidazole and 2-[(R)-[(4-nitro-3-methyl-2- pyridinyl)methyl]sulfmyl]-1H-benzimidazole, and methods for their preparation.

Cette invention concerne des procédés de préparation du dexlansoprazole, d'une forme amorphe du dexlansoprazole, d'une dispersion solide de dexlansoprazole amorphe et d'un véhicule pharmaceutiquement acceptable, et des procédés pour leur préparation. Des composés cristallins de 2-[(R)-[(4-chloro-3-méthyl-2- pyridinyl)méthyl]sulfinyl]-1H-benzimidazole et de  2-[(R)-[(4-nitro-3- méthyl-2-pyridinyl)méthyl]sulfinyl]-1H- benzimidazole et des procédés pour leur préparation sont également décrits.

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