With the aim of applying mast cell-stabilizing agents as antiulcer agents, N-(1H-tetrazol-5-yl)-2-anilino-5-pyrimidinecarboxamides were synthesized, and initially evaluated pharmacologically for activity in the rat passive cutaneous anaphylaxis test by oral administration. The most active compound 6 was proved to inhibit potently the release of histamine from passively sensitized rat peritoneal mast cells in vitro. When compared with other mast cell-stabilizing agents and an antiulcer agent, compound 6 was found to show excellent gastric mucosal protection and gastric antisecretion activities. Furthermore, compound 6 revealed good activity against acidified aspirin ulcer in rats and water-immersion stress ulcer in rats.
为了将肥大细胞稳定剂作为抗溃疡剂使用,研究人员合成了N-(
1H-四唑-5-基)-2-
苯胺基-5-
嘧啶甲酰胺,并通过口服给药在大鼠被动皮肤过敏试验中对其活性进行了初步药理评估。结果表明,活性最强的化合物6能够有效抑制体外被动致敏大鼠腹膜肥大细胞释放
组胺。与其他肥大细胞稳定剂和抗溃疡剂相比,化合物6具有出色的胃粘膜保护和胃抗分泌活性。此外,化合物6对大鼠的
阿司匹林酸溃疡和
水浸应激溃疡也有良好的疗效。