Development of 5-hydroxypyrazole derivatives as reversible inhibitors of lysine specific demethylase 1

Daniel P. Mould, Ulf Bremberg, Allan M. Jordan, Matthis Geitmann, Alba Maiques-Diaz, Alison E. McGonagle, Helen F. Small, Tim C.P. Somervaille, Donald Ogilvie

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Abstract

A series of reversible inhibitors of lysine specific demethylase 1 (LSD1) with a 5-hydroxypyrazole scaffold have been developed from compound 7, which was identified from the patent literature. Surface plasmon resonance (SPR) and biochemical analysis showed it to be a reversible LSD1 inhibitor with an IC50 value of 0.23 µM. Optimisation of this compound by rational design afforded compounds with Kd values of <10 nM. In human THP-1 cells, these compounds were found to upregulate the expression of the surrogate cellular biomarker CD86. Compound 11p was found to have moderate oral bioavailability in mice suggesting its potential for use as an in vivo tool compound.

Original languageEnglish
Pages (from-to)3190-3195
Number of pages6
JournalBioorganic and Medicinal Chemistry Letters
Volume27
Issue number14
Early online date8 May 2017
DOIs
Publication statusPublished - 15 Jul 2017

Keywords

  • Acute myeloid leukaemia
  • Cancer therapy
  • Epigenetic therapy
  • Epigenetics
  • KDM1A
  • LSD1
  • Reversible inhibitor
  • Stem cell differentiation

Research Beacons, Institutes and Platforms

  • Manchester Cancer Research Centre

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