Solubility-Driven Optimization of Phosphodiesterase-4 Inhibitors Leading to a Clinical Candidate
摘要:
The solubility-driven optimization of a series of 1,7-napthyridine phosphodiesterase-4 inhibitors is described. Directed structural changes resulted in increased aqueous solubility, enabling superior pharmacokinetic properties with retention of PDE4 inhibition. A range of potent and orally bioavailable compounds with good in vivo efficacy in animal models of inflammation and reduced emetic potential compared to previously described drugs were synthesized. Compound 2d was taken forward as a clinical candidate for the treatment of COPD.
Compounds of formula I
in free or salt form, wherein R
1
, R
2
and R
3
have the meanings as indicated in the specification, are useful for treating conditions mediated by of phosphodiesterase type 4 or the down-regulation or inhibition of TNF-α release, particularly obstructive or inflammatory airways diseases. Pharmaceutical compositions that contain the compounds and processes for preparing the compounds are also described.
Compounds of formula I
in free or salt form, wherein R1, R2 and R3 have the meanings as indicated in the specification, are useful for treating conditions mediated by of phosphodiesterase type 4 or the down-regulation or inhibition of TNF-α release, particularly obstructive or inflammatory airways diseases. Pharmaceutical compositions that contain the compounds and processes for preparing the compounds are also described.
[EN] [1,7]NAPHTHYRIDINES AS PDE4 INHIBITORS<br/>[FR] [1,7]NAPHTHYRIDINES UTILISES EN TANT QU'INHIBITEURS DE LA PDE4
申请人:NOVARTIS AG
公开号:WO2004055013A1
公开(公告)日:2004-07-01
Compounds of Formula (I) in free or salt form, wherein R1, R2 and R3 have the meanings as indicated in the specification, are useful for treating conditions mediated by of phosphodiesterase type 4 or the down-regulation or inhibition of TNF-α release, particularly obstructive or inflammatory airways diseases. Pharmaceutical compositions that contain the compounds and processes for preparing the compounds are also described.