Preparation of pharmaceutical salts of 4 ( (z) -...

Details Preparation of pharmaceutical salts of 4 ( (z) -... Preparation of pharmaceutical salts of 4 ( (z) -...

C - Chemistry, Metallurgy

07

D

C07D 401/14 (2006.01) A61K 31/444 (2006.01) A61K 31/4545 (2006.01) A61P 31/18 (2006.01)

Patent

CA 2467555

A process for preparing a mixture of rotamers or rotamer pairs of a salt of a basic compound of formula (I) wherein said mixture comprises one or more rotamers or rotamer pairs of the salt in a higher molar percent than other corresponding rotamers or rotamer pairs of the salt, said process comprising reacting said basic compound with an acid in admixture with a solvent.

Dans un mode de réalisation de l'invention, le procédé décrit permet d'obtenir directement un taux inégal d'un rotamère ou une paire de rotamères préférés spécifiques d'un sel acide à partir d'un composé basique, en choisissant un milieu solvant. Le procédé est particulièrement utile dans la préparation de rotamères désirés de sels pharmaceutiquement utiles.

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