α-Pyrone derivatives from the endolichenic fungus Nectria sp.

作者：Li, Wei; Li, Xiao-Bin; Li, Lin; Li, Rui-Juan; Lou, Hong-Xiang^*

来源：Phytochemistry Letters, 2015, 12: 22-26.

DOI：10.1016/j.phytol.2015.02.008

• Endophytic fungus
• alpha-Pyrone derivatives
• Kusumi-Mosher method

Five new alpha-pyrone derivatives, necpyrones A-E (1-5), together with seven known compounds (6-12), were isolated from the extract of an endolichenic fungus Nectria sp. Chemical structures of these compounds were elucidated by spectroscopic analyses (HRESIMS and NMR). The absolute configurations of C-6 in the pyrone ring as well as the chiral carbons at the aliphatic side chain resulted from hydroxyl substitute were finally determined on the basis of measurement of ECD and Kusumi-Mosher method.

• 出版日期2015-6
• 单位山东大学