α-Glucosidase inhibitory antihyperglycemic activity of substituted chromenone derivatives
作者:B. China Raju、Ashok K. Tiwari、J. Ashok Kumar、A. Zehra Ali、Sachin B. Agawane、G. Saidachary、K. Madhusudana
DOI:10.1016/j.bmc.2009.10.047
日期:2010.1
varying degrees of α-glucosidase inhibitory and DPPH scavenging activity. Compound 4x emerged as the most potent α-glucosidase inhibitor in present series of compounds owing to the presence of 3-acetyl-6-(6-methoxy-3-pyridyl) group on chromenone; however, it could not display DPPH scavenging activity and was found to be mixed non-competitive type inhibitor of rat intestinal α-glucosidase. When tested in
采用各种合成策略(包括Pechmann缩合,Knoevenagel缩合,Reimer-Tiemann反应和Suzuki偶联)以很高的收率合成了包括新的chromenone衍生物在内的3,4-和3,6-二取代的chromenones系列。筛选了合成的化合物(4a – z)的体外α-葡萄糖苷酶抑制作用和1,1-二苯基-2-吡啶并肼基(DPPH)自由基清除活性。大多数化合物表现出不同程度的α-葡萄糖苷酶抑制和DPPH清除活性。复合4倍由于在色酮上存在3-乙酰基-6-(6-甲氧基-3-吡啶基)基团,在本系列化合物中成为最有效的α-葡萄糖苷酶抑制剂。然而,它不能表现出DPPH清除活性,并且被发现是大鼠肠内α-葡萄糖苷酶的非竞争性混合型抑制剂。当在体内测试淀粉负载的Wistar大鼠的降血糖活性时,它显示出显着的降血糖特性。这是首次将大鼠肠道α-葡萄糖苷酶抑制特性归为此类新的色农酮,并提出了具有α-葡萄