Leonurun, a Novel Labdane Diterpenoid from Leonotis leonurus
A novel labdane diterpenoid, leonurun, has been isolated from the leaves of Leonotis leonurus. This structure was determined from spectroscopic data and the relative stereochemistry from single-crystal X-ray diffraction analysis.
KEYWORDS: Labdane diterpenoid, Leonotis leonurus, NMR data, X-ray analysis.
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