Hyperforones A–C, benzoyl-migrated [5.3.1]-type polycyclic polyprenylated acylphloroglucinols from Hypericum forrestii

Unprecedented benzoyl-migrated polycyclic polyprenylated acylphloroglucinols with a unique C-1 H-substituted bicyclo[5.3.1]hendecane framework, hyperforones A–C (1–3), were isolated from Hypericum forrestii.