The paper describes synthesis of substituted benzyloxyarylaliphatic acids, I-V, and their efficacy in stabilization the erythrocyte membrane against hypotonic haemolysis and their antiinflammatory effect in inhibition of the kaolin oedema. The quantitative relations between these efficacies and the physico-chemical and structural parameters of the acids have been analysed. The two activities depend on the overall lipophilicity and acidity of the acids. In the investigated range of lipophilicity the dependence of the antiinflammatory effect on lipophilicity had a parabolic course, whereas in stabilization of the erythrocyte membrane this dependence was linear. In either case the efficacy was suppressed by extending the connecting chain between the carboxyl and the aromatic ring. Regression analysis suggests that in the group of benzyloxyarylaliphatic acids it is not possible to prepare compounds more effective than 3-chloro-4-benzyloxyphenylacetic acid (benzofenac, Ia) and its 2-methyl analogue IIa.
这篇论文描述了取代苄氧基芳基脂肪酸I-V的合成,以及它们在稳定红细胞膜对低渗溶血的有效性,以及它们在抑制高岭土水肿中的抗炎作用。已经分析了这些有效性与酸的物理化学和结构参数之间的定量关系。这两种活性取决于酸的总脂溶性和酸度。在研究的脂溶性范围内,抗炎作用与脂溶性之间的关系呈抛物线,而在稳定红细胞膜方面,这种关系是线性的。在任何情况下,通过延长羧基和芳香环之间的连接链来抑制有效性。回归分析表明,在苄氧基芳基脂肪酸类中,无法制备比3-氯-4-苄氧基苯乙酸(苯佛那布,Ia)及其2-甲基类似物IIa更有效的化合物。