Dong MY, Zhang Y, Jiang HQ, Ren WJ, Xu LC, Zhang YQ, Liu YH. Benzofuran derivatives with nerve growth factor-potentiating activity from
Phellinus ribis.
Nat Prod Res 2020;
35:5145-5152. [PMID:
32608259 DOI:
10.1080/14786419.2020.1786827]
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Abstract
Three new benzofuran derivatives, namely ribisin E (1) ribisin F (2) along with ribisin G (3) were isolated from the MeOH extract of the fruiting bodies of Phellinus ribis. Their structures were elucidated based on the NMR analysis. Furthermore, the absolute configuration of ribisin E (1) and ribisin G (3) were deduced by the CD calculations, and the absolute configuration of ribisin F (2) was determined by comparing its CD spectrum and specific rotation with the data of known analogues. All compounds (1-3) exhibited the activity of promoting neurite outgrowth in nerve growth factor (NGF)-ediated PC 12 cell at concentrations ranging from 1 to 30 μM.
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