1 The molecular skeleton topology of the title sesquiterpene lactone is only related to that of the Yndai lactone C.

2 Objective: To extract and isolate sesquiterpene compounds from Ligularia veitchiana rhizomes and explore their medicinal value.

3 Artemisinin is an endoperoxide of the sesquiterpene lactone. The structure of this compound is too complex to be synthesized effectively. Artemisia is also found in many parts of the U.

4 Gossypol is a kind of sesquiterpene, which generally exist in the gossypol gland.

5 Artemisinin is a sesquiterpene lactone compound extracted from sweet wormwood Artemisia annuaL, which contains the specific endoperoxide bridge.

6 Relative contents of oxygenated monoterpene and sesquiterpene were higher in the oil isolated by HD than by SCFE.

7 Isolation of three sesquiterpene lactones from the roots of Cichorium glandulosum Boiss. et Huet. by high-speed counter-current chromatography.

8 Sesquiterpene compounds are main components in the Eupatorium genus. This paper reviews about 200 sesquiterpene compounds isolated from 46 species of Eupatorium genus.

9 After the cone was damaged, the content of the sesquiterpene constituents significantly decreases.