Journal
TETRAHEDRON
Volume 67, Issue 18, Pages 3170-3174Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2011.03.021
Keywords
Sarcandra hainanensis; Sesquiterpenoid dimer; CD exciton chirality; ECD calculation; Structural elucidation
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Funding
- National Natural Science Foundation [30630072, 30721005, 20932007]
- Key New Drug Creation and Manufacturing Program of the People's Republic of China [2009ZX09301-001]
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Two novel lindenane-type sesquiterpenoid dimers, sarcanolides A (1) and B (2), were isolated from the whole plants of Sarcandra hainanensis. These compounds feature a new nonacyclic scaffold in which the bond formation of C-11-C-7' imposed the five-membered lactone ring in a full beta-direction. Their structures, including the absolute configuration, were determined by NMR analysis, CD exciton chirality method, and ECD calculation. (C) 2011 Elsevier Ltd. All rights reserved.
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