SAR optimization studies on modified salicylamides as a potential treatment for acute myeloid leukemia through inhibition of the CREB pathway

Bioorg Med Chem Lett. 2019 Aug 15;29(16):2307-2315. doi: 10.1016/j.bmcl.2019.06.023. Epub 2019 Jun 19.

Abstract

Disruption of cyclic adenosine monophosphate response element binding protein (CREB) provides a potential new strategy to address acute leukemia, a disease associated with poor prognosis, and for which conventional treatment options often carry a significant risk of morbidity and mortality. We describe the structure-activity relationships (SAR) for a series of XX-650-23 derived from naphthol AS-E phosphate that disrupts binding and activation of CREB by the CREB-binding protein (CBP). Through the development of this series, we identified several salicylamides that are potent inhibitors of acute leukemia cell viability through inhibition of CREB-CBP interaction. Among them, a biphenyl salicylamide, compound 71, was identified as a potent inhibitor of CREB-CBP interaction with improved physicochemical properties relative to previously described derivatives of naphthol AS-E phosphate.

Keywords: Acute myeloid leukemia; CBP; CREB; Salicylamide; Small molecule.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • CREB-Binding Protein / antagonists & inhibitors*
  • CREB-Binding Protein / metabolism
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Dose-Response Relationship, Drug
  • Drug Screening Assays, Antitumor
  • Enzyme Inhibitors / chemical synthesis
  • Enzyme Inhibitors / chemistry
  • Enzyme Inhibitors / pharmacology*
  • HL-60 Cells
  • Humans
  • Leukemia, Myeloid, Acute / drug therapy*
  • Leukemia, Myeloid, Acute / metabolism
  • Molecular Structure
  • Salicylamides / chemical synthesis
  • Salicylamides / chemistry
  • Salicylamides / pharmacology*
  • Structure-Activity Relationship

Substances

  • Antineoplastic Agents
  • Enzyme Inhibitors
  • Salicylamides
  • CREB-Binding Protein
  • CREBBP protein, human