In the present work we report on the contribution of the coumarin moiety to tyrosinase inhibition. Coumarin-resveratrol hybrids 1-8 have been resynthesized to investigate the structure-activity relationships and the IC50 values of these compounds were measured. The results showed that these compounds exhibited tyrosinase inhibitory activity. Compound 3-(3’,4’,5’-trihydroxyphenyl)-6,8-dihydroxycoumarin (8)is the most potentcompound (0.27 mM), more so than umbelliferone (0.42 mM), used as reference compound. The kinetic studies revealed that compound 8 caused non-competitive tyrosinase inhibition.
在本研究中,我们报告了
香豆素分子对
酪氨酸酶抑制作用的贡献。我们重新合成了
香豆素-
白藜芦醇混合物 1-8,以研究其结构-活性关系,并测定了这些化合物的 IC50 值。结果表明,这些化合物具有抑制
酪氨酸酶的活性。化合物 3-(3',4',5'-三羟基苯基)-6,8-二羟基
香豆素(8)是最有效的化合物(0.27 mM),比作为参考化合物的
伞形酮(0.42 mM)更有效。动力学研究表明,化合物 8 对
酪氨酸酶具有非竞争性抑制作用。