Yao xue xue bao = Acta pharmaceutica Sinica 2003-Dec
[Chemical constituents of Ligularia dictyoneura].
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OBJECTIVE
To study the chemical constituents of Ligularia dictyoneura.
METHODS
Various chromatographic techniques were used to separate and purify the compounds. Their spectral data (MS, IR, NMR) were measured for structure elucidation.
RESULTS
Four sesquiterpenes were isolated from Ligularia dictyoneura and their structures were identified as ligudicin A (1), ligudicin C (2), ligudicin D (3) and isopetasin (4).
CONCLUSIONS
Compound 1 is a new compound, compound 2 is a new natural product, and compounds 3 and 4 are obtained from Ligularia dictyoneura for the first time.
