. 2009 Oct 20;14(10):4180–4189. doi: 10.3390/molecules14104180
© 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/).
Scheme 1.
Synthesis and structure of prepared compounds 1-12.