. 2018 Oct 22;23(10):2722. doi: 10.3390/molecules23102722
© 2018 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/).
Figure 2.
Chemical structures of linear peptides X4R4.