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. Author manuscript; available in PMC: 2016 May 1.
Published in final edited form as: Bioorg Med Chem Lett. 2015 Mar 24;25(9):1849–1855. doi: 10.1016/j.bmcl.2015.03.051

FIGURE 1.

FIGURE 1

Structures of the 1,5-benzodiazepine ligands for the CCK1R used in the current study. Note the key differences in the N1-isopropyl group of the full agonist, GI181771X (A), that are present in the other two compounds, GR134056X that contains a hydrogen in this position (B) and GR135470X that contains a methyl group in this position (C).