| abstract |
PROBLEM TO BE SOLVED: To provide a platelet ADP receptor inhibitor effective for the prevention and / or treatment of vascular diseases (particularly vascular diseases related to thrombosis). [Solution] Sulfonylurea derivatives, sulfonylthiourea derivatives, sulfonylguanidine derivatives, sulfonylcyanoguanidine derivatives, thioacylsulfonamide derivatives, and acylsulfonamide derivatives represented by [Selection figure] None |