Objective: To study macrocyclic jatrophane diterpenes of Euphorbia kansui.
Method: The compounds were isolated and purified by various column chromatographic methods. Structures were elucidated by spectroscopic analyses.
Result: Three macrocyclic jatrophane diterpenes were isolated from E. kansui and were characterized as kansuinin D1 (1), kansuinin D (2), kansuinin A (3).
Conclusion: Kansuinin D1 (1) was a new compound.
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