Molecular docking studies and biological evaluation of 1,3,4-thiadiazole derivatives bearing Schiff base moieties as tyrosinase inhibitors
作者:Junyuan Tang、Jinbing Liu、Fengyan Wu
DOI:10.1016/j.bioorg.2016.09.007
日期:2016.12
1,3,4-Thiadiazole derivatives bearing Schiff base moieties were designed, synthesized, and their tyrosinase inhibitory activities were evaluated. Some compounds displayed potent tyrosinase inhibitory activities, especially, 4-(((5-mercapto-1,3,4-thiadiazol-2-yl)-imino)methyl)-2-methoxy-phenol (14) exhibited superior inhibitory effect to the other compounds with an IC50 value of 0.036 μM. The structure–activity
设计,合成了带有席夫碱部分的1,3,4-噻二唑衍生物,并评估了它们对酪氨酸酶的抑制活性。一些化合物显示出强效的酪氨酸酶抑制活性,尤其是4-(((5-mercapto-1,3,4-thiadiazol-2-yl)-imino)methyl)-2-methoxy-phenol(14)表现出优异的抑制作用。其他化合物的IC 50值为0.036μM。初步讨论了结构-活性关系(SARs),对接研究表明化合物14对蘑菇酪氨酸酶具有很强的结合亲和力。羟基可能是活性基团。抑制动力学研究表明,化合物(13和14)通过充当非竞争性抑制剂来抑制酪氨酸酶。化合物14的LD 50值为5000mg / kg。