A Novel Clerodane-Type Diterpenoid from Sheareria nana
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A novel clerodane-type diterpenoid, with the trivial name shearerin A, was obtained from the EtOH extract of Sheareria nana S. Moore. Its structure was elucidated as 15,16,17,18-tetrahydroxy-neo-trans-clerodan- 3,13-(Z)-dien by spectroscopic methods, including ESI-MS, HR-ESI-MS, and 1D NMR and 2D NMR.
Keywordsclerodane-type diterpenoid Sheareria nana S. Moore shearerin A
This work was financially supported by Natural Science Foundation of China (Grant No. 31172357), Special Fund for Agro-scientific Research in the Public Interest of China (Grant No. 201303040), and Science and Technology Projects of China (2013FY110600).
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