Crystalline erlotinib

Details Crystalline erlotinib Crystalline erlotinib

C - Chemistry, Metallurgy

07

D

C07D 239/94 (2006.01) A61K 31/517 (2006.01) A61P 35/00 (2006.01)

Patent

CA 2659307

The invention relates to crystalline erlotinib and in particular crystalline erlotinib hydrate. The crystalline erlotinib may be comprised in a pharmaceutical preparation. The crystalline erlotinib may be produced by precipitating from a solution that comprises erlotinib dissolved in a solvent wherein said solvent is selected from methanol, ethanol, isopropanol, acetone, acetonitrile, chloroform, 1,4-dioxane, toluene, and mixtures thereof. The crystalline erlotinib may be used for producing erlotinib salts.

La présente invention concerne une forme cristalline d'erlobtinib, et plus particulièrement à l'état hydrate. Cette forme cristalline convient pour une préparation pharmaceutique. Elle se produit par précipitation d'une solution comprenant l'erlobtinib en solution dans un solvant choisi dans le groupe constitué des méthanol, éthanol, isopropanol, acétone, acétonitrile, chloroforme, 1,4-dioxane, toluène, et certains de leurs mélanges. La forme cristalline d'erlobtinib convient à la production de sels d'erlobtinib.

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