Catalytic synthesis of novel 4-C-glycosyl coumarins using a domino Heck reaction/lactonization process
作者:Denis Giguère、Ramesh Patnam、Juan M. Juarez-Ruiz、Mathieu Neault、René Roy
DOI:10.1016/j.tetlet.2009.04.134
日期:2009.7
A catalytic synthesis of novel 4-linked C-glycosyl coumarins was achieved using a domino Heck reaction/lactonization process. Methyl 3-glycosyl cinnamates were prepared from methyl 4-glycosyl-but-2-enoates using a panel of aryl iodides under Heck conditions. A direct application of this new methodology was made toward preliminary hemagglutination inhibition assays against galectins-1 and -3. C-Galactoside
使用多米诺·赫克反应/内酯化过程实现了新型4-连接的C-糖基香豆素的催化合成。在Heck条件下,使用一组芳基碘化物,由4-糖基-丁-2-烯酸甲酯制备3-糖基肉桂酸甲酯。这种新方法的直接应用是针对半乳糖凝集素-1和-3的初步血凝抑制试验。C-半乳糖苷30对半乳凝素1的IC 50为313μM。