Anhydrous crystalline forms of...

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C - Chemistry, Metallurgy

07

D

C07D 487/04 (2006.01) A61K 31/519 (2006.01) A61P 9/12 (2006.01)

Patent

CA 2608018

The invention comprises (1) anhydrous crystalline forms of N-[1-(2- ethoxyethyl)-5-(N-ethyl-N-methylamino)-7-(4-methylpyridin-2-yl-amino)-1H- pyrazolo[4,3-d]pyrimidine-3-carbonyl]methanesulfonamide, (2) pharmaceutical compositions comprising at least one such form, (3) methods for the treatment of a phosphodiesterase-5-mediated condition using at least one such form, and (4) methods for preparing such forms. The compound N-[1-(2-ethoxyethyl)-5-(N- ethyl-N-methylamino)-7-(4-methylpyridin-2-yl-amino)-1H-pyrazolo[4,3- d]pyrimidine-3-carbonyl]methanesulfonamide has the following structure (I).

L'invention concerne (1) des formes cristallines anhydres de N-[1 -(2-éthoxyéthyl)-5-(N-éthyl-N-méthylamino)-7-(4-méthylpyridin-2-yl-amino)-1H-pyrazolo[4,3-d]pyrimidine-3- carbonyl]méthanesulfonamide, (2) des compositions pharmaceutiques comprenant au moins une telle forme, (3) des procédé de traitement d'un état à médiation par phosphodiestérase-5 mettant en oeuvre au moins une telle forme et (4) des procédés de préparation de telles formes.

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