Abstract:

From the Inner Mongolia medicinal plant, Saussurea petrovii, which was coll ecte d in the suburb of Lanzhou city, Gansu province of China, a colourless gum compo und was isolated. The compound was identified as a new eudesmane type sesquiterp ene ester, petroviin, by MS and NMR. The structure of petroviin was determined b y two-dimensional NMR spectroscopy for the first time. All the ¹H and ¹³C NMR resonances   were assigned unambiguously. The relative configuration of petroviin was also  evaluated.

Key words: saussurea petrovii, eudesmane, 2D NMR