Discovery of Adamantane Carboxamides as Ebola Virus Cell Entry and Glycoprotein Inhibitors

  • Michael B. Plewe
  • , Nadezda V. Sokolova
  • , Vidyasagar Reddy Gantla
  • , Eric R. Brown
  • , Shibani Naik
  • , Alexandra Fetsko
  • , Donald D. Lorimer
  • , Donald D. Lorimer
  • , David M. Dranow
  • , David M. Dranow
  • , Hayden Smutney
  • , Hayden Smutney
  • , Jameson Bullen
  • , Jameson Bullen
  • , Rana Sidhu
  • , Rana Sidhu
  • , Arshil Master
  • , Arshil Master
  • , Junru Wang
  • , Junru Wang
  • E. Adam Kallel, Lihong Zhang, Birte Kalveram, Alexander N. Freiberg, Greg Henkel, Ken McCormack

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

We identified and explored the structure-activity-relationship (SAR) of an adamantane carboxamide chemical series of Ebola virus (EBOV) inhibitors. Selected analogs exhibited half-maximal inhibitory concentrations (EC50 values) of ∼10-15 nM in vesicular stomatitis virus (VSV) pseudotyped EBOV (pEBOV) infectivity assays, low hundred nanomolar EC50 activity against wild type EBOV, aqueous solubility >20 mg/mL, and attractive metabolic stability in human and nonhuman liver microsomes. X-ray cocrystallographic characterizations of a lead compound with the EBOV glycoprotein (GP) established the EBOV GP as a target for direct compound inhibitory activity and further provided relevant structural models that may assist in identifying optimized therapeutic candidates.

Original languageEnglish (US)
Pages (from-to)1160-1167
Number of pages8
JournalACS Medicinal Chemistry Letters
Volume11
Issue number6
DOIs
StatePublished - Jun 11 2020

Keywords

  • Ebola virus
  • adamantane carboxamide
  • cell entry
  • glycoprotein

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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