Two Interrelated Strategies for Cephalotaxine Synthesis
作者:Xiaodong Lin、Robert W. Kavash、Patrick S. Mariano
DOI:10.1021/jo961179s
日期:1996.1.1
interrelated strategies for the synthesis of members of the cephalotaxus alkaloid family have culminated in a concise route for the preparation of the parent member cephalotaxine (1). As part of efforts exploring the use of an SET-promoted photocyclization reaction of aryl-substituted silylallyliminium salts to generate the spirocyclic DE unit of the target, we noted that attempts to generate the pentacyclic