Lycopodiellactone, an unusual δ-lactone-isochromanone from a Hawaiian plant-associated fungus Paraphaeosphaeria neglecta FT462

Abstract An endophytic fungus Paraphaeosphaeria neglecta FT462 from the Hawaiian plant Lycopodiella cernua (L.) Pic. Serm produced an unusual δ-lactone-isochromanone with a methylene bridge ( 1 ). The structure of 1 was determined by NMR and MS spectroscopic analysis.