[EN] PYRIDAZIN-3(2H)-ONE DERIVATIVES AS PDE4 INHIBITORS<br/>[FR] DERIVES DE LA PYRIDAZINE-3(2h)-ONE, INHIBITEURS DE LA PDE4
申请人:ALMIRALL PRODESFARMA SA
公开号:WO2003097613A1
公开(公告)日:2003-11-27
New pyridazin-3(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.
Pyridazin-3(2H)-one derivatives of formula (I) are found to inhibit PDE-4. R
1
, R
2
and R
4
are organic radicals, R
3
is a cyclic group, and R
5
is an ester or an aryl or heteroaryl group.
PYRIDAZIN-3 (2H) -ONE DERIVATIVES AS PDE4 INHIBITORS
申请人:Dal Piaz Vittorio
公开号:US20080269235A1
公开(公告)日:2008-10-30
New pyridazin-3(2H)-one derivatives having the chemical structure of general formula (I) are disclosed; as well as process for their preparation, pharmaceutical compositions comprising them and their use in therapy as inhibitors of phosphodiesterase 4.
Pyridazin-3(2H)-one derivatives of formula (I) are found to inhibit PDE-4:
wherein
R
1
, R
2
and R
4
are organic radicals, R
3
is a cyclic group, and R
5
is an ester or an aryl or heteroaryl group.