Polyphenols from Eriosema tuberosum
1995
Ma, W.G. | Fuzzati, N. | Li, Q.S. | Yang, C.R. | Stoeckli-Evans, H. | Hostettmann, K.
A dichloromethane extract of the roots of Eriosema tuberosum exhibited antifungal activity against Cladosporium cucumerinum and Candida albicans using TLC bioautography. Bioassay-directed fractionation led to the isolation of four new compounds, eriosemaones A-D, together with a known compound, flemichin-D, as the active constituents. Three inactive polyphenols were also isolated after methylation, together with one new chromone, eriosematin. Structures were determined by spectroscopic analysis and from chemical evidence.
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