Asymmetric Total Synthesis of (+)-Virosine A via Sequential Nucleophilic Cyclizations onto an Activated Formamide
作者:Guillaume Bélanger、Marianne Dupuis、Robin Larouche-Gauthier
DOI:10.1021/jo202651t
日期:2012.4.6
The first synthesis of tetracyclic alkaloid virosine A is reported. The natural alkaloid was prepared in only 13 steps, in an enantioenriched form. The azabicyclo[2.2.2]octane core was efficiently assembled using a key Vilsmeier-Haack and Mannich cyclizations sequence performed in one pot.