. 2012 Nov 23;17(12):13891–13909. doi: 10.3390/molecules171213891
© 2012 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 license (http://creativecommons.org/licenses/by/3.0/).
Figure 4.
1H and 13C NMR signal assignments of 30a.