abstract |
Disclosed by the present invention are a thienocyclic compound represented by formula (I), a pharmaceutically acceptable salt or a hydrate thereof, a composition containing the thienocyclic compound, and a preparation method therefor. Further disclosed by the present invention is an application of the thienocyclic compound as a prostaglandin EP4 receptor antagonist that is used for preventing and treating prostaglandin PGE2-mediated diseases, comprising malignant tumors, autoimmune diseases inflammation, pain and osteoarthritis. |