论文部分内容阅读
Two new compounds, oleanolic acid 28-O-β-D-glucopyranosyl-3-O-α-L-arabinopyrano- syl-(1→3)-(6'-butyl ester)-β-D-glucuropyranoside 1, oleanolic acid 28-O-β-D-glucopyranosyl- (1→6)-β-D-glucopyranoside 2 have been isolated from the roots of Hemsleya penx