Crystalline forms of osanetant

Details Crystalline forms of osanetant Crystalline forms of osanetant

C - Chemistry, Metallurgy

07

D

C07D 211/58 (2006.01) A61K 31/445 (2006.01)

Patent

CA 2339007

The invention concerns a method for preparing crystalline forms I and II of (R)-(+)-N-[[3-[1-benzoyl-3-(3,4-dichlorophenyl)piperidin-3-yl]prop-1-yl]-4- phenyl piperidin-4-yl]-N-methylacetamide (osanetant), and said crystalline forms of osanetant. Preferably, the osanetant to be crystallised is prepared from its benzenesulphonate.

L'invention concerne un procédé pour la préparation des formes cristallines I et II du (R)-(+)-N-[[3-[1-benzoyl-3-(3,4-dichlorophényl)pipéridin-3-yl]prop-1-yl]-4-phényl pipéridin-4-yl]-N-méthylacétamide (osanétant), ainsi que lesdites formes cristallines I et II de l'osanétant. Préférentiellement, l'osanétant à cristalliser est préparé à partir de son benzènesulfonate.

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