Abstract:Objective To study the chemical constituents of transformed products by Fusarium sac-chari and to find the rare ginsenosides with anti-tumor effects from the leaves of Panax notoginseng.Methods The compound isolated was separated by repeated silica gel,Sephadex LH-20,and HPLC.‘ chro-matography. The structure was identified by analysis of its spectral data. Results A dammarane-type tri-terpene, notoginsenoside-LZ, 20(S)-3β-hydroxy-12β,23-epoxy-dammar-24-ene-20-O-β3-D-xylopyranosyl(1→6)-a-D-glucopyranoside,was isolated from the transformed products. Conclusion Notoginsenoside-LZ is a new compound.