Many 8-[(2-benzimidazolyl)sulfinylmethyl]-1, 2, 3, 4-tetrahydroquinoline derivatives were synthesized and tested for their (H+ + K+)adenosine triphosphatase (ATPase)-inhibitory and antisecretory activities against histamine-induced gastric acid secretion in rats. These sulfinyl compounds were synthesized by the oxidation of the corresponding sulfides, which were obtained from the reaction of 8-chloromethyl-1, 2, 3, 4-tetrahydroquinolines and 2-mercaptobenzimidazoles in the presence of potassium carbonate. All compounds tested were potent inhibitors of (H+ + K+)ATPase. Most of the compounds showed antisecretory activity. Among them, 8-[(2-benzimidazolyl)sulfinylmethyl]-1-ethyl-1, 2, 3, 4-tetrahydroquinoline (IXa) was found to have the most potent activity. The structure-activity relationships are discussed.
合成了许多8-[(2-
苯并咪唑基)亚磺酰甲基]-1, 2, 3, 4-
四氢喹啉衍
生物,并测试了它们对(H+ + K+)
腺苷三磷酸酶(
ATPase)的抑制活性和对
组胺诱导的大鼠胃酸分泌的抗分泌活性。这些亚磺酰化合物是通过氧化相应的
硫化物合成的,这些
硫化物是通过在
碳酸钾存在下,8-
氯甲基-1, 2, 3, 4-
四氢喹啉与2-巯基
苯并咪唑反应得到的。所有测试的化合物都是(H+ + K+)
ATPase的强效
抑制剂。大多数化合物显示出抗分泌活性。在这些化合物中,8-[(2-
苯并咪唑基)亚磺酰甲基]-1-ethyl-1, 2, 3, 4-
四氢喹啉(IXa)被发现具有最强的活性。讨论了结构-活性关系。