作者:William A. Kinney、Nancy E. Lee、Robert M. Blank、Christopher A. Demerson、Carol S. Sarnella、Noreen T. Scherer、G. Nabi Mir、Luis E. Borella、John F. DiJoseph、Cheryl Wells
DOI:10.1021/jm00163a053
日期:1990.1
A series of substituted 2-pyridinecarbothioamides was synthesized and evaluated for gastric mucosal protectant activity in the rat. Out of this investigation N-(3,5-difluorophenyl)-2- pyridinecarbothioamide (23, AY-31,574) was identified. This compound was much more potent than sucralfate and ranitidine against ethanol-induced lesions. Compound 23 was equipotent with ranitidine against gastric injury caused by stress. Unlike ranitidine, 23 was found to be devoid of antisecretory activity in the pylorus-ligated rat model, making it a selective mucosal protectant. Such a potent selective mucosal protectant may provide a novel clinical approach in treating ulcers.