Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2019 Jun 7;8(6):737–742. doi: 10.1002/open.201900110

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

©2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

PMC Copyright notice

Chemical structure of ligands: cyclo[DKP‐RGD] (1), NH₂CH₂−cyclo[DKP‐RGD] (2), cyclo[DKP‐isoDGR] (3), NH₂CH₂−cyclo[DKP‐isoDGR] (4) and cytotoxic drugs: cryptophycin‐52 (5), cryptophycin‐55 (6) and cryptophycin‐55 glycinate (7).