Design, synthesis, and analysis of antagonists of GPR55: Piperidine-substituted 1,3,4-oxadiazol-2-ones

Maria Elena Meza-Aviña, Mary A. Lingerfelt, Linda M. Console-Bram, Thomas F. Gamage, Haleli Sharir, Kristen E. Gettys, Dow P. Hurst, Evangelia Kotsikorou, Derek M. Shore, Marc G. Caron, Narasinga Rao, Larry S. Barak, Mary E. Abood, Patricia H. Reggio, Mitchell P. Croatt

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

A series of 1,3,4-oxadiazol-2-ones was synthesized and tested for activity as antagonists at GPR55 in cellular beta-arrestin redistribution assays. The synthesis was designed to be modular in nature so that a sufficient number of analogues could be rapidly accessed to explore initial structure–activity relationships. The design of analogues was guided by the docking of potential compounds into a model of the inactive form of GPR55. The results of the assays were used to learn more about the binding pocket of GPR55. With this oxadiazolone scaffold, it was determined that modification of the aryl group adjacent to the oxadiazolone ring was often detrimental and that the distal cyclopropane was beneficial for activity. These results will guide further exploration of this receptor.

Original languageEnglish
Pages (from-to)1827-1830
Number of pages4
JournalBioorganic and Medicinal Chemistry Letters
Volume26
Issue number7
DOIs
StatePublished - 1 Jan 2016
Externally publishedYes

Keywords

  • Antagonist
  • Cancer
  • GPCR
  • GPR55
  • Neuropathic pain

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Medicine
  • Molecular Biology
  • Pharmaceutical Science
  • Drug Discovery
  • Clinical Biochemistry
  • Organic Chemistry

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