Part 1: Efficient strategies for the construction of variably substituted bicyclo[5.3.1]undecenones (AB taxane ring systems)
作者:Alain Laurent、Nidia P Villalva-Servín、Pat Forgione、Peter D Wilson、David V Smil、Alex G Fallis
DOI:10.1139/v03-200
日期:2004.2.1
containing variably substituted bicyclo[5.3.1]undecenones (AB taxane ringsystems) are described. These routes employ a multi-component coupling protocol that utilizes sequential magnesium-mediated carbometallation of propargyl alcohols and intramolecular DielsAlder reactions (IMDA). The cycloaddition generates the key eight-membered taxane ring as a single diastereomer, induced by preferential Lewis acid