Discovery of β-Arrestin Biased, Orally Bioavailable, and CNS Penetrant Neurotensin Receptor 1 (NTR1) Allosteric Modulators

J Med Chem. 2019 Sep 12;62(17):8357-8363. doi: 10.1021/acs.jmedchem.9b00340. Epub 2019 Aug 20.

Abstract

Neurotensin receptor 1 (NTR1) is a G protein coupled receptor that is widely expressed throughout the central nervous system where it acts as a neuromodulator. Neurotensin receptors have been implicated in a wide variety of CNS disorders, but despite extensive efforts to develop small molecule ligands there are few reports of such compounds. Herein we describe the optimization of a quinazoline based lead to give 18 (SBI-553), a potent and brain penetrant NTR1 allosteric modulator.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Administration, Oral
  • Allosteric Regulation / drug effects
  • Animals
  • Biological Availability
  • Central Nervous System Diseases / drug therapy*
  • Central Nervous System Diseases / metabolism
  • Dopamine Plasma Membrane Transport Proteins / deficiency
  • Dopamine Plasma Membrane Transport Proteins / metabolism
  • Dose-Response Relationship, Drug
  • Drug Discovery*
  • Female
  • Locomotion / drug effects
  • Male
  • Mice
  • Mice, Inbred C57BL
  • Mice, Knockout
  • Molecular Structure
  • Quinazolines / administration & dosage
  • Quinazolines / chemistry
  • Quinazolines / pharmacology*
  • Rats
  • Receptors, Neurotensin / antagonists & inhibitors*
  • Receptors, Neurotensin / metabolism
  • Structure-Activity Relationship
  • beta-Arrestins / administration & dosage
  • beta-Arrestins / chemistry
  • beta-Arrestins / pharmacology*

Substances

  • Dopamine Plasma Membrane Transport Proteins
  • Quinazolines
  • Receptors, Neurotensin
  • beta-Arrestins
  • neurotensin type 1 receptor