Studies on the chemical constituents from the mycelia of marine fungus Aspergillus versicolor / 中国海洋药物

Objective To study the chemical constituents from mycelium of marine fungus Aspergillus versicolor.Methods The compounds were separated by column chromatography and their structures were elucidated based on chemical and spectral analysis. Results Seven compounds have been isolated from the acetone and methanol extracts from the mycelia of Aspergillus versicolor. Their structures were determined as sterigmatocystin (I), 6-methoxysterigmatocystin (II), averufin (III), tyrosine (IV), 3-methyl-pyrrolopiperazine-2, 5-dione (V), 3-isopropyl-pyrrolopiperazine-2, 5-dione (VI), carbamide (VII). Conclusion Compounds IV,V and VI were isolated for the first time from this genus of marine fungi.