A novel class of antiulcer agents. 4-Phenyl-2-(1-piperazinyl)quinolines.
作者:Katsuhiko HINO、Katsuyoshi KAWASHIMA、Makoto OKA、Yasutaka NAGAI、Hitoshi UNO、Jun-ichi MATSUMOTO
DOI:10.1248/cpb.37.110
日期:——
The synthesis of a novel class of antiulcer agents, the substituted 4-phenyl-2-(1-piperazinyl)quinolines, and their pharmacological activities (inhibitory effects on hypothermia induced by reserpine and on gastric ulcers induced by stress or ethanol) are described. These compounds can be classified into three groups (a group predominantly effective on the stress-induced ulcer, one effective on both the stress- and ethanol-induced ulcers, and one selectively effective on the ethanol-induced ulcer), with regard to antiulcer activity. The inhibitory effect on stress-induced ulcer was found to be in close relation to the antagonism of hypothermia. The structure-activity relationships in these compounds are described. Among the compounds, 2-(4-ethyl-1-piperazinyl)-4-phenylquinoline dimaleate (9, AS-2646) showed a potent inhibition of stress-induced ulcer and gastric acid secretion, possively through action on the central nervous system, and it was selected for clinical evaluation.
描述了一类新型抗溃疡药物的合成,即取代的4-苯基-2-(1-哌嗪基)喹啉,以及它们的药理活性(对由雷沙平引起的低温及由压力或乙醇引起的胃溃疡的抑制作用)。这些化合物可根据抗溃疡活性分为三类(针对压力诱导溃疡具有主导效应的一类、对压力和乙醇诱导的溃疡均有效的一类,以及对乙醇诱导溃疡选择性有效的一类)。在压力诱导的溃疡中,抑制作用与对低温的拮抗作用密切相关。描述了这些化合物的结构-活性关系。在这些化合物中,2-(4-乙基-1-哌嗪基)-4-苯基喹啉二马来酸盐(9,AS-2646)对压力诱导的溃疡和胃酸分泌表现出显著抑制作用,可能通过对中枢神经系统的作用实现,因此被选中进行临床评估。