. 2014 Apr 2;19(4):4115–4134. doi: 10.3390/molecules19044115
© 2014 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/).
Scheme 3.
Synthesis of silybin dimers with ether spacer.