Studies on (H+-K+)-ATPase inhibitors of gastric acid secretion. Prodrugs of 2-[(2-pyridinylmethyl)sulfinyl]benzimidazole proton-pump inhibitors
作者:John C. Sih、Wha bin Im、Andre Robert、David R. Graber、David P. Blakeman
DOI:10.1021/jm00107a026
日期:1991.3
N-substituted benzimidazole (H(+)-K+)-ATPase or proton-pump inhibitors is described. These compounds were prepared to function as prodrugs of the parent N-H compound and evaluated for their ability to inhibit gastric (H(+)-K+)-ATPase and gastric acid secretion. The prodrugs reported rely on either in vivo esterase hydrolysis for liberation of the parent compound (type I and type II) or require an acid environment
描述了N-取代的苯并咪唑(H(+)-K +)-ATPase或质子泵抑制剂的合成。制备这些化合物以充当母体NH化合物的前药,并评估它们抑制胃(H(+)-K +)-ATP酶和胃酸分泌的能力。报道的前药依赖于体内酯酶水解来释放母体化合物(I型和II型),或者需要酸性环境释放活性药物(III型和IV型)。与它们的母体NH化合物相比,N-(酰氧基)烷基取代的苯并咪唑9、11和24在固态和水溶液中显示出改进的化学稳定性。口服时,在Shay大鼠和大鼠胃(H(+)-K +)-ATPase失活中,24的效力是奥美拉唑的两倍。发现N-乙氧基-1-乙基取代的苯并咪唑48-50与抑制大鼠(H(+)-K +)-ATPase活性的NH化合物一样有效。在Shay大鼠中,浓度为10 mg / kg的48的活性约为母体替莫拉唑的两倍。