Synthesis and Absolute Configuration of Hongoquercin B, a Sesquiterpene-substituted Orsellinic Acid Isolated as a Fungal Metabolite

Abstract

  (+)-Hongoquercin B (1), a weakly antibacterial fungal metabolite, was synthesized by starting from (S)-3-hydroxy-2,2-dimethylcyclohexanone, and its absolute configuration was determined as depicted by structure 1.