99
3.9 Ligularia wilsoniana (Hemsley) Greenman
Compound 306 and its 6-angeloyloxy derivative 308 were determined as the major
constituents common to samples 1, 3, and 4 of L. wilsoniana (Plate 10, Table 12)
[163]. Compound 305 was characterized as a rarely isolated 6-propanoyloxy derivative. In contrast to these three samples, sample 2 was observed as being somewhat
different, since six furanoeremophilanes and eremophilenolides with no oxygenated
Fig. 27 Eremophiladienolides and eremophilatrienolides
Chemical Constituents of Ligularia Species (Asteraceae) and Their Diversity…