1. Academic Validation
  2. Sodium [2'-[(cyclopropanecarbonyl-ethyl-amino)-methyl]-4'-(6-ethoxy-pyridin-3-yl)-6-methoxy-biphenyl-3-yl]-acetate (AM432): a potent, selective prostaglandin D2 receptor antagonist

Sodium [2'-[(cyclopropanecarbonyl-ethyl-amino)-methyl]-4'-(6-ethoxy-pyridin-3-yl)-6-methoxy-biphenyl-3-yl]-acetate (AM432): a potent, selective prostaglandin D2 receptor antagonist

  • Bioorg Med Chem Lett. 2011 Feb 1;21(3):1036-40. doi: 10.1016/j.bmcl.2010.12.016.
Nicholas Stock 1 Deborah Volkots Karin Stebbins Alex Broadhead Brian Stearns Jeffrey Roppe Timothy Parr Christopher Baccei Gretchen Bain Charles Chapman Lucia Correa Janice Darlington Christopher King Catherine Lee Daniel S Lorrain Pat Prodanovich Angelina Santini Jilly F Evans John H Hutchinson Peppi Prasit
Affiliations

Affiliation

  • 1 Amira Pharmaceuticals, 9535 Waples St., San Diego, CA 92121, USA. nickstock@gmail.com
Abstract

Compound 21 (AM432) was identified as a potent and selective antagonist of the DP(2) receptor (CRTH2). Modification of a bi-aryl core identified a series of tri-aryl antagonists of which compound 21 proved a viable clinical candidate. AM432 shows excellent potency in a human whole blood eosinophil shape change assay with prolonged incubation, a comparatively long off-rate from the DP(2) receptor, excellent pharmacokinetics in dog and in vivo activity in two mouse models of inflammatory disease after oral dosing.

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