Provided is a composition for maintaining a function of platelets, having as an active ingredient a pyridone derivative represented by the following general formula (I), or a salt thereof (in the formula, ring A, R
1
, R
2
, R
3
, and R
4
represent the definitions given in the description).
Pyridone derivative, pharmaceutical containing the same and methods of use thereof
申请人:KAKEN PHARMACEUTICAL CO., LTD.
公开号:US10000476B2
公开(公告)日:2018-06-19
General formula (I): The present invention pertains to: a pyridone derivate or a salt thereof represented by general formula (I); or a medicine containing the pyridone derivative or salt thereof as an active ingredient. [In the formula, ring A, R1, R2, R3 and R4 are specific groups.]