Identification of diamino chromone-2-carboxamides as MCHr1 antagonists with minimal hERG channel activity

Bioorg Med Chem Lett. 2007 Apr 15;17(8):2365-71. doi: 10.1016/j.bmcl.2006.11.068. Epub 2006 Dec 1.

Abstract

A series of potent 2-carboxychromone-based melanin-concentrating hormone receptor 1 (MCHr1) antagonists were synthesized and evaluated for hERG (human Ether-a-go-go Related Gene) channel affinity and functional blockade. Basic dialkylamine-terminated analogs were found to weakly bind the hERG channel and provided marked improvement in a functional patch-clamp assay versus previously reported antagonists of the series.

MeSH terms

  • Amides / pharmacology*
  • Animals
  • Chromones / pharmacology*
  • Ether-A-Go-Go Potassium Channels / drug effects
  • Ether-A-Go-Go Potassium Channels / metabolism*
  • Humans
  • Inhibitory Concentration 50
  • Mice
  • Obesity / drug therapy
  • Patch-Clamp Techniques
  • Pharmacokinetics
  • Receptors, Pituitary Hormone / antagonists & inhibitors*

Substances

  • Amides
  • Chromones
  • Ether-A-Go-Go Potassium Channels
  • Receptors, Pituitary Hormone
  • melanin-concentrating hormone receptor