[EN] PYRIDAZIN-3 (2H) -ONE DERIVATIVES AND THEIR USE AS PDE4 INHIBITORS [FR] DERIVES DE PYRIDAZINE-3(2H)-ONES ET UTILISATION EN TANT QU'INHIBITEURS DE PDE4
[EN] PYRIDAZIN-3 (2H) -ONE DERIVATIVES AND THEIR USE AS PDE4 INHIBITORS [FR] DERIVES DE PYRIDAZINE-3(2H)-ONES ET UTILISATION EN TANT QU'INHIBITEURS DE PDE4
Development of methodologies for the regioselective synthesis of four series of regioisomer isoxazoles from β-enamino diketones
作者:Raí G. M. Silva、Michael J. V. da Silva、Andrey P. Jacomini、Sidnei Moura、Davi F. Back、Ernani A. Basso、Fernanda A. Rosa
DOI:10.1039/c7ra13343j
日期:——
are reported for the regioselectivesynthesis of four series of regioisomer isoxazoles from cyclocondensation of β-enamino diketones and hydroxylamine hydrochloride. Regiochemical control was achieved by varying reaction conditions and substrate structure. The mild reaction conditions used to access 4,5-disubstituted, 3,4-disubtituted, and 3,4,5-trisubstituted regioisomer isoxazoles, as well as the pharmacological
Pyridazin-3(2)-one derivatives and their use as pde4 inhibitors
申请人:Dal Piaz Vittorio
公开号:US20070197536A1
公开(公告)日:2007-08-23
New pyridazin-e-(2H)-one derivatives having the chemical structure of general formula (I) are disclosed; as well as processes for their preparation, pharmaceutical compositions comprising them and their use in therapy as inhibitors of phosphodiesterase 4.