. 2018 Oct 10;23(10):2594. doi: 10.3390/molecules23102594
© 2018 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/).
Figure 1.
Scheme of the selective synthesis of 2.