Synthesis and pharmacological evaluation of novel isoquinoline N-sulphonylhydrazones designed as ROCK inhibitors

J Enzyme Inhib Med Chem. 2018 Dec;33(1):1181-1193. doi: 10.1080/14756366.2018.1490732.

Abstract

In this study, we synthesized a new congener series of N-sulphonylhydrazones designed as candidate ROCK inhibitors using the molecular hybridization of the clinically approved drug fasudil (1) and the IKK-β inhibitor LASSBio-1524 (2). Among the synthesized compounds, the N-methylated derivative 11 (LASSBio-2065) showed the best inhibitory profile for both ROCK isoforms, with IC50 values of 3.1 and 3.8 µM for ROCK1 and ROCK2, respectively. Moreover, these compounds were also active in the scratch assay performed in human breast cancer MDA-MB 231 cells and did not display toxicity in MTT and LDH assays. Molecular modelling studies provided insights into the possible binding modes of these N-sulphonylhydrazones, which present a new molecular architecture capable of being optimized and developed as therapeutically useful ROCK inhibitors.

Keywords: LASSBio-1524; Molecular hybridization; N-sulphonylhydrazone; ROCK inhibitor; Rho kinase; fasudil.

MeSH terms

  • 1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine / analogs & derivatives
  • 1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine / chemistry
  • 1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine / pharmacology
  • Animals
  • Cell Line, Tumor
  • Female
  • Humans
  • Hydrazones / chemical synthesis
  • Hydrazones / chemistry*
  • Hydrazones / pharmacology
  • Isoquinolines / chemistry*
  • Models, Molecular
  • Powder Diffraction
  • Protein Kinase Inhibitors / chemical synthesis*
  • Protein Kinase Inhibitors / pharmacology*
  • Spectrum Analysis / methods
  • rho-Associated Kinases / antagonists & inhibitors*

Substances

  • Hydrazones
  • Isoquinolines
  • N-(4-nitrobenzylidene)-2-naphthohydrazide
  • Protein Kinase Inhibitors
  • 1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine
  • rho-Associated Kinases
  • isoquinoline
  • fasudil

Grants and funding

This work was co-funded by Conselho Nacional de Desenvolvimento Científico e Tecnológico [CNPq, BR, Grant No 305.991/2017–5, 432.001/2016–6, 304.872/2013–0, 307.664/2015–5 and 402.289/2013–7], Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro [FAPERJ, BR, Grant No. E-26/202.918/2015], Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) [Grant No. 2015/26233–7] and Instituto Nacional de Ciência e Tecnologia de Fármacos e Medicamentos [INCT-INOFAR, BR, Grant No 465.249/2014]. Thanks are also due to Departamento de Ciência e Tecnologia (DECIT) of Brazilian Ministry of Health for the financial support [Grant No 25000.447435/2017–00].