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. Author manuscript; available in PMC: 2017 Jul 1.

Published in final edited form as: Bioorg Med Chem. 2016 May 17;24(13):3083–3092. doi: 10.1016/j.bmc.2016.05.025

(A) Predicted binding mode of 4b (orange) with Mer kinase (PDB code: 3TCP) overlapped with UNC569 (cyan, the original bound ligand of 3TCP). Surrounding amino acid side chains are shown in gray stick format and are labeled. Surface is added on the amino acids Lys619, Leu671, Ile650, Ala740 and Asp741 to show the forming “gate”. Hydrogen bonds are shown by yellow dashed lines, and the distance between ligands and protein is less than 3 Å. Oxyen atoms are red and nitrogen atoms are blue in ligands and amino acid residues. (B) The binding modes of compounds 7a–7e (gray) superimposed on 4b (orange).

(A) Predicted binding mode of 4b (orange) with Mer kinase (PDB code: 3TCP) overlapped with UNC569 (cyan, the original bound ligand of 3TCP). Surrounding amino acid side chains are shown in gray stick format and are labeled. Surface is added on the amino acids Lys619, Leu671, Ile650, Ala740 and Asp741 to show the forming “gate”. Hydrogen bonds are shown by yellow dashed lines, and the distance between ligands and protein is less than 3 Å. Oxyen atoms are red and nitrogen atoms are blue in ligands and amino acid residues. (B) The binding modes of compounds 7a–7e (gray) superimposed on 4b (orange).