Phialomyces macrosporus: Chemical Constituents, Antimicrobial Activity and Complete NMR Assignments for the 7,7′‐Biphyscion

Five known secondary metabolites, chrysophanol ( 1 ), 7,7′‐biphyscion ( 2 ), secalonic acid D ( 3 ), mannitol ( 4 ) and trehalose ( 5 ) were isolated for the first time from the extracts of the fungus Phialomyces macrosporus . Their structures were elucidated by NMR methods (1D and 2D NMR analysis), optical activity and ESI‐MS. Complete 1 H and 13 C assignments were performed for compound 2 . The antimicrobial activity was evaluated by serial...