Novel tricyclic poly (ADP-ribose) polymerase-1/2 inhibitors with potent anticancer chemopotentiating activity: Design, synthesis and biological evaluation

Bioorg Med Chem. 2016 Oct 1;24(19):4731-4740. doi: 10.1016/j.bmc.2016.08.016. Epub 2016 Aug 11.

Abstract

8,9-Dihydro-2,4,7,9a-tetraazabenzo[cd]azulen-6(7H)-ones were designed and synthesized as a new class of PARP-1/2 inhibitors. The compounds displayed a variable pattern of PARP-1/2 enzymes inhibition profile that, in part, paralleled the antiproliferative activity in cell lines. Among them, compound 9e exhibited not only the significant IC50 value of 28nM in the PARP-1 and 7.7nM in PARP-2 enzyme assay, but also a profound synergic efficacy combined with temozolomide with PF50 values of 2.6, 2.5, and 6.5 against MDA-MB-468, SW-620 and A549 and cell line, respectively.

Keywords: Anticancer; Inhibitors; PARP-1/2; Tricyclic.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents / chemistry*
  • Antineoplastic Agents / pharmacology*
  • Azulenes / chemistry*
  • Azulenes / pharmacology*
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Drug Design
  • Humans
  • Models, Molecular
  • Neoplasms / drug therapy
  • Neoplasms / enzymology
  • Neoplasms / pathology
  • Poly (ADP-Ribose) Polymerase-1 / antagonists & inhibitors
  • Poly (ADP-Ribose) Polymerase-1 / metabolism
  • Poly(ADP-ribose) Polymerase Inhibitors / chemistry*
  • Poly(ADP-ribose) Polymerase Inhibitors / pharmacology*
  • Poly(ADP-ribose) Polymerases / metabolism

Substances

  • Antineoplastic Agents
  • Azulenes
  • Poly(ADP-ribose) Polymerase Inhibitors
  • PARP2 protein, human
  • Poly (ADP-Ribose) Polymerase-1
  • Poly(ADP-ribose) Polymerases