Concise Formal Syntheses of the Amaryllidaceae Alkaloids (±)-Tazettine and (±)-6a-Epipretazettine: Construction of the Core Skeleton via Tandem Intramolecular Oxidative Friedel-Crafts/Aza-Michael Reaction

CHEMISTRY-AN ASIAN JOURNAL

WILEY-V C H VERLAG GMBH

1. MOST [2010CB833200]
2. NSFC [21125207, 21072086, 21102062]
3. program 111
4. Fundamental Research Funds for the Central Universities [lzujbky-2011-76]