Synthesis and tyrosinase inhibitory activities of 4-oxobutanoate derivatives of carvacrol and thymol
作者:Nicholas Brotzman、Yiming Xu、Allison Graybill、Alexander Cocolas、Andrew Ressler、Navindra P. Seeram、Hang Ma、Geneive E. Henry
DOI:10.1016/j.bmcl.2018.11.013
日期:2019.1
thymol (2) were converted to their alkyl 4-oxobutanoate derivatives (7-20) in three steps, and evaluated for tyrosinase inhibitory activity. The compounds showed structure-dependent activity, with all alkyl 4-oxobutanoates, except 7 and 20, showing better inhibitory activity than the precursor 4-oxobutanoic acids (5 and 6). In general, thymol derivatives exhibited a higher percent inhibitory activity
通过三个步骤将香芹酚(1)和百里酚(2)转化为它们的4-氧代丁酸烷基酯衍生物(7-20),并评估其酪氨酸酶抑制活性。该化合物显示出结构依赖性的活性,除7和20以外的所有4-氧代丁酸烷基酯均显示出比前体4-氧代丁酸(5和6)更好的抑制活性。通常,百里香酚衍生物在500μM处比香芹酚衍生物表现出更高的抑制活性百分比。包含三碳和四碳烷基的衍生物具有最强的活性(香芹酚衍生物9-12,IC50 = 128.8-244.1μM;百里酚衍生物16-19,IC50 = 102.3-191.4μM)。