MARCHANTIOPHYTA (LIVERWORTS): RICH SOURCES OF MACROCYCLIC BIS(BIBENZYLS)

The Marchantiophyta (liverworts) produce which show interesting biological activity such as antimicrobial, antifungal, antiobesity and muscle relaxing activity etc. and are of very valuable for the chemosystematic and evolutional study of the Marchantiophyta and pteridophytes. The isolation, identification, structural elucidation and total synthesis of these characteristic natural products and their biological activity are reviewed.