concentrations could be achieved after peroral administration of this type of compound. Since insufficient metabolic stability was suspected as the cause, structural modifications were made to optimize this property. These included the conversion of the aromatic into an aliphatic carboxylic acid function as well as the rigidification of the lipophilic structural elements. A selected pyrrole-3-propionic acid was
1 位带有 3-芳氧基-2-氧代丙基残基的
吲哚-5-羧酸已被证明是细胞溶质
磷脂酶 A 2 α (cP
LA 2 α) 的有效
抑制剂,后者是一种参与促炎脂质介质形成的酶。不幸的是,在动物实验中,口服此类化合物后只能达到非常低的血浆浓度。由于怀疑代谢稳定性不足是原因,因此进行了结构修改以优化此特性。这些包括将芳香族转化为脂肪族
羧酸功能以及亲脂性结构元素的刚性化。对选定的
吡咯-3-
丙酸进行了体内经口试验小鼠的
生物利用度。然而,该化合物也不能达到更高的血浆浓度。使用 Caco2 细胞渗透测定法,发现所研究的物质是胃肠道外排转运蛋白的非常好的底物,这解释了它们经口吸收不佳的原因。