New pterocarpon flavonoids from Wisteria sinensis tumor

Abstract Three new pterocarpon flavonoids, wisterones B-D, together with nine isoflavone known compounds, were isolated from Wisteria sinensis Tumor. The structure of those compounds were elucidated on the basis of spectroscopic analyses, including UV, IR, MS and NMR experiments. These new compounds were investigated for their activities against anti-crop pathogenic fungi.