Design and synthesis of a vialinin A analog with a potent inhibitory activity of TNF-α production and its transformation into a couple of bioprobes

Bioorganic & Medicinal Chemistry Letters
2012.0

Abstract

Vialinin A (1) is an extremely potent inhibitor against tumor necrosis factor (TNF)-α production in rat basophilic leukemia (RBL-2H3) cells. This Letter describes the design and synthesis of its advanced analog, 5',6'-dimethyl-1,1':4'1″-terphenyl-2',3',4,4″-tetraol (2) with a comparable inhibitory activity (IC(50)=0.02 nM) to that of 1. The synthesis involved double Suzuki-Miyaura coupling as a key step, and required only five steps from commercially available 3,4-dimethylphenol. For identification of the target molecule, fluorescent and biotinylated derivatives of 2 were prepared through a 'click' coupling process.

DOI： 10.1016/j.bmcl.2012.02.034

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