131
Table 18 Samples 1–4 of L. songarica
and their chemical constituents
No.
Collection
year
Collection place
Elevation
(m)
Bicyclic
eremophilanes
10H Tricyclic
eremophilanes
Bisabolanes
Oplopanes
Others Ref.
1
1997
Urumqi (Xinjiang
Autonomous Region))
a
121
369
680, 698
−
808
[99]
2
1997
Urumqi (Xinjiang
Autonomous Region)
a
−
−
666, 681, 700, 701,
702, 703, 704
−
−
[227]
3
2008
(Xinjiang Autonomous
Region)
550
−
−
−
733, 734, 736,
737, 738, 748, 754
−
[237]
4
2010
(Xinjiang Autonomous
Region)
1900
−
−
647, 651, 654, 660,
680, 690, 698, 700
−
−
[224,
232]
a
Not described
Chemical Constituents of Ligularia Species (Asteraceae) and Their Diversity…