Macrocyclic diterpenes from Euphorbia nivulia

Phytochemistry
2002.0

Abstract

The latex of Euphorbia nivulia afforded two ingol diterpenes 3,12-diacetyl-8-benzoylingol (4) and 3,12-diacetyl-7-benzoyl-8-nicotinylingol (5) along with three known ingol diterpenes 1, 2,and 3, and two known triterpenes cycloart-25-en-3beta-ol and cyclonivulinol. Their structures have been assigned on the basis of their structural data as well as their acetylated products. The diterpenes 1-5 were tested for the LPS induced PGE(2) inhibition activity.

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