Two new sesquiterpenoids from plant endophytic fungus Flammulina velutipes .

Two new sesquiterpenoids, flammupin A () and flammupin B (), along with two known compounds, enokipodin C () and 5,5'-dibuthoxy-2,2'-bifuran () were obtained from , an endophytic fungus isolated from the roots of Maxim. The structures were elucidated by the combination of HR-ESI-MS, NMR, and ECD analyses. Compound exhibited moderate to potent cytotoxicity against A549, HeLa, and SMMC-7721 cells with IC values ranged from 3.69 to 11.84 μM.