. 2021 Oct 27;22(21):11584. doi: 10.3390/ijms222111584
© 2021 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/).
Scheme 1.
Melatonin (N-acetyl-5-methoxytryptamine).