The present invention provides a novel a condensed polycyclic compound useful as a phosphodiesterase 4 inhibitor, which is shown by the formula [I]:
1
or a pharmaceutically acceptable salt thereof and a pharmaceutical composition containing the same.
The present invention provides a novel a condensed polycyclic compound useful as a phosphodiesterase 4 inhibitor, which is shown by the formula [I]:
or a pharmaceutically acceptable salt thereof and a pharmaceutical composition containing the same.