. 2016 Aug 27;21(9):1121. doi: 10.3390/molecules21091121
© 2016 by the authors.
Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
Figure 3.
Key HMBC, COSY and NOESY correlations for 2.