ISOLATION, 1H, 13C NMR ASSIGNMENTS, AND CRYSTAL STRUCTURE OF CHRODRIMANIN B FROM A MARINE FUNGUS Aspergillus sp.

A terrestrial fungal metabolite, chrodrimanin B (1), has been isolated for the first time from the fermentation broth of a marine-derived fungus Aspergillus sp. collected from the South China Sea. Detailed assignments for the proton and carbon of 1 have been unambiguously elucidated by combined spectroscopic methods including 1D and 2D NMR spectral data, and the relative configurations were also confirmed by single-crystal X-ray data.