Catalytic synthesis of novel 4-C-glycosyl coumarins using a domino Heck reaction/lactonization process
2009
Abstract 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 30 had an IC 50 of 313 μM against galectin-1.
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