antiallergic activity using the rat passive cutaneous anaphylaxis (PCA) test. Many of the oxanilic acid esters are active orally, with the most active species having an aryl 2'-carbamoyl group and a 3'-methoxy group. Hydrolysis of the ester from the oxanilic ester moiety causes a loss of oral activity.
制备了大量的
草酸苯甲酸酯和N-杂芳基草酰胺酸酯,并通过大鼠被动皮肤过敏反应(PCA)测试发现具有抗过敏活性。许多草酰
苯甲酸酯具有口服活性,最活泼的物种具有芳基2'-
氨基甲酰基和3'-甲氧基。酯从草酰胺酯部分
水解会导致口服活性下降。