A series of 3-benzylidene-4-chromanone derivatives (3–20) were synthesized and the structure–activity relationships for antioxidant and α-glucosidase inhibitory activities were evaluated. Among synthesized compounds, compounds 5, 13, 18, which contain catechol moiety, showed the potent 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging activity (5: EC50 13 µM; 13: EC50 14 µM; 18: EC50 13 µM). The compounds 12, 14, 18 showed higher α-glucosidase inhibitory activity (12: IC50 15 µM; 14: IC50 25 µM; 18: IC50 28 µM). The compound 18 showed both of potent DPPH radical scavenging and α-glucosidase inhibitory activities. These data suggest that 3-benzylidene-4-chromanone derivatives, such as compound 18, may serve as the lead compound for the development of novel α-glucosidase inhibitors with antioxidant activity.
合成了一系列 3-亚苄基-4-色满酮衍
生物(3-20),并评估了其抗氧化和抑制α-
葡萄糖苷酶活性的结构-活性关系。在合成的化合物中,含有
儿茶酚分子的化合物 5、13 和 18 显示出了强效的 1,1
-二苯基-2-苦基
肼(
DPPH)自由基清除活性(5:
EC50 13 µM;13:
EC50 14 µM;18:
EC50 13 µM)。化合物 12、14 和 18 显示出较高的α-
葡萄糖苷酶抑制活性(12:IC50 15 µM;14:IC50 25 µM;18:IC50 28 µM)。化合物 18 同时显示了强效的
DPPH 自由基清除活性和 α-
葡萄糖苷酶抑制活性。这些数据表明,3-亚苄基-4-色满酮衍
生物(如化合物 18)可作为先导化合物,用于开发具有抗氧化活性的新型α-
葡萄糖苷酶
抑制剂。