Diastereoselective Intramolecular [4+3] Cycloaddition: Synthesis of a Versatile Precursor for Preparation of 5,7-Fused Ring Compounds

摘要

Compound 8 which could be used as a versatile precursor for the synthesis of 5,7-membered fused ring containing natural products was synthesized via tandem Pummerer rearrangement and intramolecular [4+3] cycloaddition in moderate yield and with high diastereoselectivity.