. 2019 Nov 4;24(21):3988. doi: 10.3390/molecules24213988
© 2019 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 (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Scheme 5.
Synthesis of final compounds 35 and 36.