Synthesis of furo[3,2-c]coumarin derivatives using visible-light-promoted radical alkyne insertion with bromocoumarins
作者:Hui Zhou、Xinzhao Deng、Zhenjun Ma、Aihua Zhang、Qixue Qin、Ren Xiang Tan、Shouyun Yu
DOI:10.1039/c6ob00768f
日期:——
The synthesis of privileged structures, which are potent drug candidates, is an impetus for drug discovery. The construction of heterocyclic framework furo[3,2-c]coumarins using a visible-light promoted photoredox neutral coupling of 3-bromo-4-hydroxycoumarins with commercially available alkynes has been reported. These reactions can be carried out at room temperature under visible light irradiation
作为潜在药物候选者的特权结构的合成是药物发现的动力。已经报道了使用3-溴-4-羟基香豆素与市售炔烃的可见光促进的光氧化还原中性偶联来构建杂环骨架呋喃[3,2- c ]香豆素。这些反应可以在室温下在可见光照射下以良好的化学产率进行。这项工作提出了17种呋喃香豆素,其中12种是新的。新合成的化合物中的三种显示出有效的细胞毒性,一种显示出中等的乙酰胆碱酯酶抑制活性,IC 50值为2.16±0.13μM。