. 2020 Jul 16;25(14):3252. doi: 10.3390/molecules25143252
© 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 13.
N-alkylation reaction of 1,5-naphthyridinones.