143
dimer linked through C-8 of two furano-eremophila-7(11),9-diene units. Compounds
563, 564, and 565 seem to be artifacts.
3.19 Ligularia caloxantha (Diels) Handel-Mazzetti
Sample 1 of L. caloxantha (Yunnan Province) produced euparin (952) (a major
constituent), five aromatic compounds (906, 907, 944, 953, and 957), and
8β-hydroxyeremophilenolide (356) as well as lupeol (828) (Table 22) [181]. The
isolation of the tricyclic sesquiterpene acid 814 was reported from the same source
Fig. 64 Aromatic compounds (3)
Chemical Constituents of Ligularia Species (Asteraceae) and Their Diversity…
dimer linked through C-8 of two furano-eremophila-7(11),9-diene units. Compounds
563, 564, and 565 seem to be artifacts.
3.19 Ligularia caloxantha (Diels) Handel-Mazzetti
Sample 1 of L. caloxantha (Yunnan Province) produced euparin (952) (a major
constituent), five aromatic compounds (906, 907, 944, 953, and 957), and
8β-hydroxyeremophilenolide (356) as well as lupeol (828) (Table 22) [181]. The
isolation of the tricyclic sesquiterpene acid 814 was reported from the same source
Fig. 64 Aromatic compounds (3)
Chemical Constituents of Ligularia Species (Asteraceae) and Their Diversity…