申请人:Merck & Co., Inc.
公开号:US04760086A1
公开(公告)日:1988-07-26
N-Alkenyl-3-hydroxybenzo[b]thiophene-2-carboxamide derivatives have been prepared by: (1) treating a substituted 2-halobenzoate with thioacetamide followed by N-alkenylation with appropriate agents, such as aldehydes, ketones, enol ethers, epoxides, acetals or ketals; (2) treating a substituted thiosalicylate with an appropriately substituted haloacetamide, followed by dehydration; and (3) further synthetic modification of compounds prepared above. These compounds have been found to be effective inhibitors of both cyclooxygenase and lipoxygenase and thereby useful in the treatment of pain, fever, inflammation, arthritic conditions, asthma, allergic disorders, skin diseases, cardiovascular disorders, psoriasis, inflammatory bowel disease, glaucoma or other prostaglandins and/or leukotriene mediated diseases. Furthermore, these compounds have been found to exhibit cytoprotective activity which does not involve the inhibition of gastric acid secretion but can be used at relatively low dosages for increasing the resistance of gastro-intestinal mucosa to strong irritants.
已经制备了N-烯基-3-羟基苯并[b]噻吩-2-羧酰胺衍生物:(1) 用硫代乙酰胺处理取代的2-卤代苯甲酸酯,然后用适当的试剂(如醛、酮、烯醚、环氧化物、缩醛或缩酮)进行N-烯基化;(2) 用适当取代的卤代乙酰胺处理取代的硫代水杨酸酯,然后脱水;以及(3) 进一步合成修改上述制备的化合物。这些化合物已被发现对环氧合酶和脂氧合酶均具有有效的抑制作用,因此在治疗疼痛、发热、炎症、关节炎、哮喘、过敏性疾病、皮肤病、心血管疾病、牛皮癣、炎症性肠病、青光眼或其他前列腺素和/或白三烯介导的疾病治疗中具有用途。此外,这些化合物已被发现具有细胞保护活性,不涉及抑制胃酸分泌,但可以以相对较低的剂量用于增加胃肠黏膜对强刺激物的抵抗力。