Investigation of Chamaelirium luteum roots led to the isolation of two new steroidal saponins, helosides A (1) and B (2), that contain a previously unreported aglycone, helogenin (3). Their structures
Thirteen tetrahydroxanthone dimers, atrop-ascherxanthone A (1), ascherxanthones C–G (2–6), and confluxanthones A–G (7–13), were isolated from the entomopathogenic fungus Aschersonia confluens BCC53152
Endophytic fungi of medicinal plants are abundant, and their metabolites often have antioxidant, antibacterial, and antitumor effects and can produce secondary metabolites identical or similar to thos
