New indole amide derivatives as potent CRTH2 receptor antagonists

  • Bioorg Med Chem Lett. 2011 Jun 1;21(11):3471-4. doi: 10.1016/j.bmcl.2011.03.085.
Helmi Zaghdane  1 ,  Michael Boyd ,  John Colucci ,  Daniel Simard ,  Carl Berthelette ,  Yves Leblanc ,  Zhaoyin Wang ,  Robert Houle ,  Jean François Lévesque ,  Carmela Molinaro ,  Martine Hamel ,  Rino Stocco ,  Nicole Sawyer ,  Susan Sillaots ,  François Gervais ,  Michel Gallant
Affiliations
  • 1. Medicinal Chemistry, Merck Frosst, Center of Therapeutic Research, 16711 Trans Canada Hwy, Kirkland, Quebec, Canada H9H 3L1. [email protected]
PMID: 21515053 DOI: 10.1016/j.bmcl.2011.03.085
Abstract

A new series of indole amide acting as hCRTH2 receptor ligands had been explored and are described herein. Several amide derivatives displaying low nanomolar activity in hCRTH2 binding and whole blood assays were identified. They were found to behave as a full antagonists, exhibiting good selectivity over related prostaglandin receptors. Also, prototypical compounds in this novel series which displayed acceptable CYP profiles and were orally bioavailable in rats were identified.