Thiophenopyridine substituted acetyl hyarazine derivative

The present invention discloses thiopheno pyridine substituted acetyl hyarazine derivative compound as shown in expression I and its pharmaceutically acceptable salt, medicine composition with the compound as effective component, and their application as platelet aggregation resisting medicine, especially as medicine for preventing and treating platelet aggregation caused coronary artery syndromes, myocardial infarction, myocardial ischemia and other cardiac and cerebral vascular diseases.