Catalytic Enantioselective Approach to the Stereodivergent Synthesis of (+)-Lasubines I and II
作者:Olga García Mancheño、Ramón Gómez Arrayás、Javier Adrio、Juan C. Carretero
DOI:10.1021/jo702076j
日期:2007.12.1
A concise and efficient approach to the stereodivergentsynthesis of (+)-lasubines I and II is described. The key common intermediate is a chiral N-sulfonyl 2,3-dihydropyridone obtained by a novel Cu-catalyzed asymmetric formal aza-Diels−Alder reaction between N-tosyl aldimines and Danishefsky's diene.