Abstract
To provide a novel pyridazinone derivative useful as a pharmaceutical product having a phosphodiesterase inhibitory activity. ; SOLUTION: A phosphodiesterase (PDE) inhibitor contains the pyridazinone derivative represented by formula (1) [wherein Heterocycle represents a benzoxazole ring or a benzothiazole ring], an optical isomer thereof, a pharmacologically acceptable salt thereof or a hydrate thereof as an active ingredient.
Translated title of the contribution | PYRIDAZINONE DERIVATIVE AND PDE INHIBITOR COMPRISING THE SAME AS ACTIVE INGREDIENT |
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Original language | Other |
Patent number | JP2008063265(A) |
IPC | A61K31/501; A61P1/04; A61P11/00; A61P11/02; A61P11/06; A61P15/10; A61P17/02; A61P19/02; A61P25/00; A61P25/14; A61P25/16; A61P25/18; A61P25/24; A61P25/28; A61P29/00; A61P3/04; A61P3/06; A61P3/10; A61P37/08; A61P43/00; A61P7/02; A61P9/04; A61P9/10; A61P9/12; C07D403/04; C07D413/04; C07D417/04 |
Publication status | Published - 21 Mar 2008 |