Synthesis and biological evaluation of novel hydroxybenzaldehyde-based kojic acid analogues as inhibitors of mushroom tyrosinase
作者:Wenlin Xie、Huilin Zhang、Jingjing He、Jingai Zhang、Qiuyan Yu、Chunxiang Luo、Shangru Li
DOI:10.1016/j.bmcl.2016.12.027
日期:2017.2
Two series of novel kojic acid analogues (4a–j) and (5a–d) were designed and synthesized, and their mushroom tyrosinase inhibitory activities was evaluated. The result indicated that all the synthesized derivatives exhibited excellent tyrosinase inhibitory properties having IC50 values in the range of 1.35 ± 2.15–17.50 ± 2.75 μM, whereas standard inhibitor kojic acid have IC50 values 20.00 ± 1.08 μM
设计并合成了两个系列的新型曲酸类似物(4a – j)和(5a – d),并评估了它们对蘑菇酪氨酸酶的抑制活性。结果表明,所有合成的衍生物均表现出优异的酪氨酸酶抑制特性,IC 50值为1.35±2.15–17.50±2.75μM,而标准抑制剂曲酸的IC 50值为20.00± 1.08μM 。具体而言,5-苯基-3- [5-羟基-4-吡喃-2-基-甲基巯基-]-4-(2,4-二羟基苄基氨基)-1,2,4-三唑(4f)表现出IC 50具有最强的酪氨酸酶抑制活性值为1.35±2.15μM。化合物(4f)的动力学研究表明,该化合物对酪氨酸酶的抑制作用属于竞争性抑制剂。同时,讨论了结构-活性关系。