| 摘要 |
<p>Compounds represented by general formula (I) and having platelet aggregation inhibitory effects, and pharmacologically acceptable salts and solvates thereof, wherein A represents a group represented by general the formula (II), (III), or (IV). Medicinal compositions containing the above compounds are utilizable as platelet aggregation inhibitors that are excellent in platelet aggregation inhibitory activities, do not cause hemorrhage and side effects due to a failure in the selectivity for inhibitory actions, and are also efficacious against vascular lesions such as vascular spasm.</p> |
