. 2020 Sep 28;9(10):650. doi: 10.3390/antibiotics9100650
© 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 1.
Synthesis of pyrazole-derived aldehyde (4).