. 2020 Mar 31;25(7):1594. doi: 10.3390/molecules25071594
© 2020 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 25.
Synthesis of p- and m-position products 102.