. 2009 Jul 31;14(8):2850–2856. doi: 10.3390/molecules14082850
© 2009 by the authors;
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 3.
COSY spectrum of alkaloid 1.