Total synthesis of 8-(6″-umbelliferyl)-apigenin and its analogs as anti-diabetic reagents
作者:Guojun Pan、Lianbo Zhao、Na Xiao、Ke Yang、Yantao Ma、Xia Zhao、Zhenchuan Fan、Yongmin Zhang、Qingwei Yao、Kui Lu、Peng Yu
DOI:10.1016/j.ejmech.2016.07.015
日期:2016.10
The naturally occurring flavone 8-(6″-umbelliferyl)apigenin, a hybrid structure of apigenin and coumarin, as well as seven of its analogues were synthesized for the first time by using iodination and Suzuki coupling reactions as key steps. The synthesis of 8-(6″-umbelliferyl)-apigenin was achieved in seven linear steps from the commercially available 1-(2,4,6-trihydroxyphenyl)ethan-1-one and 7-hydroxyl
以碘化和铃木偶联反应为关键步骤,首次合成了天然存在的黄酮8-(6″-伞形糖基)芹菜素,芹菜素和香豆素的杂化结构,及其七个类似物。从市售的1-(2,4,6-三羟基苯基)乙-1-酮和7-羟基香豆素按七个线性步骤合成8-(6''-伞形酮)-芹菜素,总收率为31%。在脂肪细胞中研究了这些化合物对葡萄糖处置的影响。发现所有的类黄酮和香豆素氢化物均比其相应的类黄酮核具有更好的生物活性。最有效的化合物15(10μM)可以促进葡萄糖消耗57%,其表现出与1mM的阳性对照二甲双胍相似的作用。另外,荧光显微镜显示,4 8-(6“-umbelliferyl)芹菜素类似物2,15,30和31能够促进2- NBDG摄取到3T3-L1细胞,其由与葡萄糖的调节观察到的。