申请人:OTSUKA PHARMACEUTICAL CO., LTD.
公开号:US20210340157A1
公开(公告)日:2021-11-04
Provided is a novel heterocyclic compound having an aryl hydrocarbon receptor antagonist activity and useful for the promotion of platelet production, the compound being represented by the general formula [I]: wherein ring A, ring B, R
1
, R
2
, R
3
, R
4
, n, and X are as defined above, or a salt thereof.