Acid addition salts of 2-acetoxy-5-(&agr;-cyclopropyl-carbonyl-2-fluorobenzyl)-4,5,6,7-tetrahydrothieno[3,2-c]-pyridine. The acid addition salts of tetrahydrothienopyridine derivatives of the present invention exhibit excellent oral absorption, metabolization into the active compound, and platelet aggregation-inhibiting effects, low toxicity, and excellent storage and handling stabilities, and are useful as medicaments, preferably preventive or therapeutic agents (particularly therapeutic agents) for diseases caused by a thrombus or an embolus, still more preferably preventive or therapeutic agents (particularly therapeutic agents) for thrombosis or embolism.
2-乙酰氧基-5-(&agr;-环丙基羰基-2-
氟苯甲基)-4,5,6,7-
四氢噻吩[3,2-c]
吡啶的酸盐。本发明的
四氢噻吩吡啶衍生物的酸盐表现出优异的口服吸收性能,代谢为活性化合物,抑制血小板聚集作用,低毒性,优秀的储存和处理稳定性,并且可作为药物使用,最好是预防或治疗剂(特别是治疗剂),用于由血栓或栓塞引起的疾病,更好地是预防或治疗剂(特别是治疗剂)用于血栓形成或栓塞。