. 2015 Sep 2;20(9):16048–16067. doi: 10.3390/molecules200916048
© 2015 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/4.0/).
Scheme 1.
Synthesis of bis-acid thiosemicarbazides 4–6.