. 2010 Mar 26;15(4):2178–2186. doi: 10.3390/molecules15042178
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licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
Figure 2.
Key HMBC (→) and 1H, 1H COSY (—) correlations of 1.