Enantioselective Total Synthesis of (−)-Galanthamine
作者:Barry M. Trost、F. Dean Toste
DOI:10.1021/ja002231b
日期:2000.11.1
Trost, Barry M.; Malhotra, Sushant; Olson, David E., Journal of the American Chemical Society, 2009, vol. 131, p. 4190 - 4191
作者:Trost, Barry M.、Malhotra, Sushant、Olson, David E.、Maruniak, Autumn、Bois, J. Du
DOI:——
日期:——
Divergent Enantioselective Synthesis of (−)-Galanthamine and (−)-Morphine
作者:Barry M. Trost、Weiping Tang、F. Dean Toste
DOI:10.1021/ja054449+
日期:2005.10.1
tricyclic intermediate is available in six steps from 2-bromovanillin and the monoester of methyl 6-hydroxycyclohexene-1-carboxylate. This intermediate requires only two steps to convert to (-)-galanthamine. Using a Heck vinylation, we found that the fourth ring of codeine/morphine could be formed. The final ring formation involves a novel visible light-promoted hydroamination. Thus, six steps are required