NEW NONADRIDE ANALOGUES FROM A FRESHWATER ISOLATE OF AN UNDESCRIBED FUNGUS BELONGING TO THE ORDER PLEOSPORALES

Three new nonadride derivatives, tetrahydroepiheveadride (1), dideoxoepiheveadride (2) and deoxodihydroepiheveadride (3), and two new C-9 compounds, waquafranone A (7) and B (8), which were suggestive of precursors of nonadrides, along with other known compounds epiheveadride (4), deoxoepiheveadride (5), dihydroepiheveadride (6), sydonic acid (9), hydroxysydonic acid (10), folipastatin (11), and agonodepside B (12), from the newly described freshwater aquatic fungus Wicklowia aquatica. The chemical structures of 1 - 12 were elucidated by the spectroscopic and chemical investigation and, comparison to literature data.