2006•Journal of Asian Natural Products ResearchRequires access
A new labdane diterpene from Leonurus heterophyllus
Xiao-han Cai, Chun‐Tao Che, Chi‐Keung Lam, Thomas C. W. Mak, Ling Wu
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Abstract
A new labdane diterpene, heteronone B (1), together with a known labdane diterpene, heteronone A (2), have been isolated from the aerial part of Leonurus heterophyllus. Their structures were established mainly by 1D and 2D NMR analysis and the stereochemistry of 2 was confirmed by single-crystal X-ray diffraction analysis.