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. Author manuscript; available in PMC: 2016 Jan 15.
Published in final edited form as: Bioorg Med Chem Lett. 2014 Nov 24;25(2):292–296. doi: 10.1016/j.bmcl.2014.11.047

Chart 1.

Chart 1

Structures of neurotensin reference peptides (1, 2), reference nonpeptides (3-5), and recently described NTS2 selective nonpeptide compounds (6,7) and title compound (9).