. 2019 Dec 26;25(1):99. doi: 10.3390/molecules25010099
© 2019 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 and NOESY correlations of 1 and 2.