dichloromethane extract of the roots of Eriosematuberosum 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
使用 TLC 生物自显影,马铃薯根的二氯甲烷提取物对黄瓜枝孢和白色念珠菌具有抗真菌活性。生物测定定向分馏导致分离出四种新化合物 eriosemaones AD 以及已知化合物 flemichin-D 作为活性成分。甲基化后还分离出三种无活性的多酚,以及一种新的色酮,即 eriosematin。通过光谱分析和化学证据确定结构。