Synthesis of 2-(2,3-dihydro-2-oxo-1,3,4-oxadiazol-5-yl) benzo heterocycles. A novel series of orally active antiallergic agents
作者:John H. Musser、Richard E. Brown、Bernard Loev、Kevin Bailey、Howard Jones、Robert Kahen、Fuchih Huang、Atul Khandwala、Mitchell Leibowitz
DOI:10.1021/jm00368a004
日期:1984.2
A series of new 2-(2,3-dihydro-2-oxo-1,3,4-oxadiazol-5-yl) benzo heterocycles has been prepared. These compounds were tested as inhibitors of antigen-induced release of histamine (AIR) in vitro from rat peritoneal mast cells (RMC) and as inhibitors of IgE-mediated rat passive cutaneous anaphylaxis in the rat (PCA). Most of this new class of antiallergic agents showed good activity in the RMC assay
制备了一系列新的2-(2,3-二氢-2-氧代-1,3,4-恶二唑-5-基)苯并杂环。测试了这些化合物作为体外从大鼠腹膜肥大细胞(RMC)中抗原诱导的组胺(AIR)释放的抑制剂,以及作为IgE介导的大鼠大鼠被动皮肤过敏反应(PCA)的抑制剂。大多数这类新的抗过敏剂在RMC分析中显示出良好的活性。最有效的化合物3-氯-2-(2,3-二氢-2-氧代-1,3,4-恶二唑-5-基)苯并[b]噻吩(6t),I50值为0.2在RMC分析中,microM的效能比色甘酸二钠(DSCG)强15倍。在PCA测试中,许多化合物具有口服活性,当以这种方式给予时,这些化合物中的几种显示出比通过腹膜内给予时DSCG所显示的更高的效力。