Naphthyridine derivatives, their preparation and their use as phosphodiesterase isoenzyme 4 (pde4) inhibitors
申请人:——
公开号:US20040254212A1
公开(公告)日:2004-12-16
The invention relates to compounds of formula I
1
in free or salt form, where R
1
is a monovalent aromatic group having up to 10 carbon atoms, and R
2
is a cycloaliphatic group having up to 8 ring carbon atoms. Compositions containing them, methods for their preparation and their use as pharmaceuticals are also described.
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.