Phthalazine derivatives as phosphodiesterase 4 inhibitors

The present invention provides a compound selected from the group including: N-3-acetyl-1-(3,5-dichloropyridin-4-ylmethyl)-5-cyclopentyloxy-6-methoxy-4H-phthalazine; 6,7-dimethoxy-1-pyridin-4-ylmethyl-4-thiazol-2-yl-phthalazine; 1-(6,7-dimethoxy-4-pyridin-4-ylmethyl-1H-phthalazin-2-yl)ethanone; 2-me...

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Bibliographische Detailangaben
Hauptverfasser: GRANCINI GIANCARLO, NORCINI GABRIELE, MORAZZONI GABRIELE, PELLACINI FRANCO, NAPOLETANO MAURO
Format: Patent
Sprache:eng
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Zusammenfassung:The present invention provides a compound selected from the group including: N-3-acetyl-1-(3,5-dichloropyridin-4-ylmethyl)-5-cyclopentyloxy-6-methoxy-4H-phthalazine; 6,7-dimethoxy-1-pyridin-4-ylmethyl-4-thiazol-2-yl-phthalazine; 1-(6,7-dimethoxy-4-pyridin-4-ylmethyl-1H-phthalazin-2-yl)ethanone; 2-methanesulphonyl-6,7-dimethoxy-4-pyridin-4-ylmethyl-1,2-dihydrophthalazine; 2-formyl-6,7-dimethoxy-4-pyridin-4-ylmethyl-1,2-dihydrophthalazine; 1-(6,7-dimethoxy-4-pyridin-4-ylmethyl-1H-phthalazin-2-yl)-1-imidazol-1-ylmethanone; 1-(3,5-dichloro-pyridin-4-ylmethyl)-3-methansulphonyl-6-difluoromethoxy-5-(tetrahydro-furan-2-yloxy)-4H-phthalazine; N->O derivatives thereof; and pharmaceutically acceptable salts thereof. The invention also provides a pharmaceutical composition, which contains a therapeutically effective amount of the above compound in admixture with a pharmaceutically acceptable carrier.