Synthesis of Antimitotic Analogs of the Microtubule Stabilizing Sponge Alkaloid Ceratamine A
作者:Matt Nodwell、Jenna L. Riffell、Michel Roberge、Raymond J. Andersen
DOI:10.1021/ol7030284
日期:2008.3.1
Antimitotic analogs of the microtubule stabilizing sponge alkaloid ceratamine A (1) have been synthesized starting from tribromoimidazole. A key step in the synthesis is the formation of the azepine ring via an intramolecular Buchwald coupling between a vinyl bromide and a N-methyl amide. This represents the first synthesis of a fully unsaturated imidazo[4,5,d]azepine. NMR data obtained for the synthetic