Design, synthesis and biological screening of new 4-thiazolidinone derivatives with promising COX-2 selectivity, anti-inflammatory activity and gastric safety profile

Bioorg Chem. 2016 Feb:64:1-12. doi: 10.1016/j.bioorg.2015.11.001. Epub 2015 Nov 6.

Abstract

Two series of new thiazolidin-4-one derivatives 4a-c and 8a-e were designed and prepared. All the synthesized compounds were evaluated for their in vitro COX-2 selectivity and anti-inflammatory activity in vivo. Compounds 8c and 8d showed the best overall in vitro COX-2 selectivity (selectivity indexes of 4.56 and 5.68 respectively) and in vivo activities (edema inhibition %=61.8 and 67 after 3h, respectively) in comparison with the reference drug celecoxib (S.I.=7.29, edema inhibition %=60 after 3h). In addition, 8c and 8d were evaluated for their mean effective anti-inflammatory doses (ED50=27.7 and 18.1 μmol/kg respectively, celecoxib ED50=28.2 μmol/kg) and ulcerogenic liability (reduction in ulcerogenic potential versus celecoxib=85%, 92% respectively. Molecular docking studies were performed and the results were in agreement with that obtained from the in vitro COX inhibition assays.

Keywords: Anti-inflammatory; Cyclooxygenase inhibition; Molecular modeling; Thiazolidinone.

MeSH terms

  • Animals
  • Anti-Inflammatory Agents / adverse effects
  • Anti-Inflammatory Agents / chemical synthesis
  • Anti-Inflammatory Agents / therapeutic use*
  • Celecoxib / pharmacology
  • Celecoxib / therapeutic use
  • Cyclooxygenase 1 / metabolism
  • Cyclooxygenase 2 / metabolism*
  • Cyclooxygenase 2 Inhibitors / adverse effects
  • Cyclooxygenase 2 Inhibitors / chemical synthesis
  • Cyclooxygenase 2 Inhibitors / therapeutic use*
  • Edema / drug therapy
  • Humans
  • Ibuprofen / pharmacology
  • Ibuprofen / therapeutic use
  • Mice
  • Molecular Docking Simulation
  • Sheep
  • Stomach Ulcer / chemically induced
  • Sulfonamides / adverse effects
  • Sulfonamides / chemical synthesis
  • Sulfonamides / pharmacology*
  • Thiazolidines / adverse effects
  • Thiazolidines / chemical synthesis
  • Thiazolidines / pharmacology
  • Thiazolidines / therapeutic use*

Substances

  • 3-(4-aminosulfonylphenylamino)-2-(4-chlorophenyl)-5-methyl-4-thiazolidinone
  • 3-(4-aminosulfonylphenylamino)-2-(4-fluorophenyl)-5-methyl-4-thiazolidinone
  • Anti-Inflammatory Agents
  • Cyclooxygenase 2 Inhibitors
  • Sulfonamides
  • Thiazolidines
  • Cyclooxygenase 1
  • Cyclooxygenase 2
  • PTGS2 protein, human
  • Celecoxib
  • Ibuprofen