A new triterpene lactone named patrinolide A (1) has been isolated from the
roots of Patrinia scabiosaefolia (Valerianaceae). Its structure was determ
ined to be 11 beta ,21 beta -dihydroxy-3-oxooleanan-28,13 beta -olide on th
e basis of spectral analysis, including 2D-NMR techniques.