In 1980, Takasugi and co-workers reported the isolation and activities of several antifungal metabolites from the tissues of the paper mullberry (Broussoneutra papyifera Vent.) subsequent to infection with Fusarium solani f. sp. m0ri. l The structures of two previously unreported compounds were deduced by a combination of spectral and chemical degradation evidence and were assigned as broussonins A and B (1 and 2), respectively ( ...