| abstract |
A novel use of a specific bicyclic nitrogen-containing heterocyclic compound as a PDE7 inhibitor, and a novel bicyclic nitrogen-containing heterocyclic compound having a PDE7 inhibitory action or a pharmaceutically acceptable salt thereof as an active ingredient Providing a pharmaceutical composition. A PDE7 inhibitor comprising a compound having a specific chemical structure represented by formula (II) or a pharmacologically acceptable salt thereof as an active ingredient. [R II is H, etc .; L II is a single bond, etc .; Cy II is substituted / unsubstituted aryl, heteroaryl, alicyclic hydrocarbon group, non-aromatic heterocycle, etc.] [Selection figure] None |