. 2022 Dec 6;9(12):776. doi: 10.3390/bioengineering9120776
© 2022 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 (https://creativecommons.org/licenses/by/4.0/).
Figure 3.
The structures of compounds 40–56.