Asterogynins: Secondary Metabolites from a Costa Rican Endophytic Fungus

An endophytic fungus isolated from the small palm Asterogyne martiona produced two unusual steroid-like metabolites, asterogynin A (1) and asterogynin B (2), along with the known compounds viridiol (3) and vindin (4) Asterogynins A and B were characterized by NMR and MS spectroscopic analysis