. 2016 Jan 16;21(1):100. doi: 10.3390/molecules21010100
© 2016 by the authors.
Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
Scheme 2.
Synthesis of compounds 10i–k, 11l–n, and 12o–p.