Monarubins A-C from the Marine Shellfish-Associated Fungus BB5.

Three new compounds, monarubins A-C (, and ), together with ten known compounds, including four alkaloids (-), two isocoumarins ( and ) and four polyketides (-), were isolated from marine shellfish-associated fungus BB5. The structures were determined on the basis of the 1D and 2D NMR, MS, UV and IR data. The absolute configurations of compounds , and were determined by ECD calculations.

Cytotoxic alkaloids from the marine shellfish-associated fungus sp. XBB-4 induced by an amino acid-directed strategy.

Eight different culture media were used to culture shellfish associated fungus sp. XBB-4. In a glucose-peptone-yeast (GPY) culture medium supplied with amino acids, this fungus can produce chemodiversity metabolites.

Exploration of Indole Alkaloids from Marine Fungus F44-1 Using an Amino Acid-Directed Strategy.

The composition of the culture medium has great influence on the metabolite production of the marine fungus F44-1. By adding amino acids to GPY culture medium, two new bisindole alkaloids, pseudboindoles A and B ( and ), together with 11 known indole alkaloids were isolated from the culture broth. Their structures were elucidated by comprehensive analysis of the NMR, MS, IR, and UV spectra.