Philip Magnus, Neeraj Sane, Benjamin P. Fauber and Vince Lynch
Concise Syntheses of (−)-Galanthamine and (±)-Codeine via Intramolecular Alkylation of a Phenol Derivative
J. Am. Chem. Soc., 2009, 131 (44), pp 16045–16047
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http://dx.doi.org/10.1021/ja9085534
