chloride derivatives in pyridine. Hydrolysis of acetyl compounds gave hydroxy derivatives, from which other acyl derivatives could be synthesized. These compounds were tested in the rat PCA (passive cutaneous anaphylaxis) assay by oral administration. Benzonitrile derivatives (4c, 5c, 6c, 4h, 5h) exhibited notable inhibition in this assay. Compounds 5c and 6c also showed remarkable inhibition of eosinophil
通过在
吡啶中用
乙醇酰
氯衍
生物处理相应的间二
氨基苯衍
生物,合成了一系列间二(糖基
氨基)苯衍
生物。乙酰基化合物的
水解产生羟基衍
生物,从中可以合成其他酰基衍
生物。这些化合物在口服PCA(被动性皮肤过敏反应)试验中进行了测试。
苯甲腈衍
生物(4c,5c,6c,4h,5h)在该试验中表现出显着的抑制作用。化合物5c和6c在10(-8)-10(-5)M的范围内也显示出嗜酸性粒细胞对TNF-(肿瘤坏死因子)α处理的HU
VEC(人脐静脉内皮细胞)粘附的显着抑制。化合物5c是目前正在日本进行TYB-2285(图1)研究,用于II期临床研究中的哮喘和特应性皮炎。