[Chemical constituents of Ligularia dictyoneura].
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.
Tan
Ai-min
AM
Department of Pharmacognosy, China Pharmaceutical University, Nanjing 210038, China.
He
Hong-ping
HP
Yang
Hong
H
Zhang
Mian
M
Wang
Zheng-tao
ZT
Hao
Xiao-jiang
XJ
D019659:Asteraceae / Q000737:chemistry*; D008968:Molecular Conformation; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D012717:Sesquiterpenes / Q000737:chemistry* / Q000302:isolation & purification*
D012717:Sesquiterpenes; C489699:ligudicin A; C418728:isopetasin