Synthesis and anti-inflammatory activity of some benzofuran and benzopyran-4-one derivatives

Chem Pharm Bull (Tokyo). 2012;60(1):110-20. doi: 10.1248/cpb.60.110.

Abstract

New series of furosalicylic acids 3a-c, furosalicylanilides 6a-n, furobenzoxazines 8a-f, 1-benzofuran-3-arylprop-2-en-1-ones 12a,b, 6-(aryl-3-oxoprop-1-enyl)-4H-chromen-4-ones 16a-c and 6-[6-aryl-2-thioxo-2,5-dihydropyrimidin-4-yl]-4H-chromen-4-ones 17a-c were synthesized. Anti-inflammatory activity evaluation was performed using carrageenan-induced paw edema model in rats and prostaglandin E(2) (PGE(2)) synthesis inhibition activity. Some of the tested compounds revealed comparable activity with less ulcerogenic effect than Diclofenac at a dose 100 mg/kg. All the synthesized compounds were docked on the active site of cyclooxygenase-2 (COX-2) enzyme and most of them showed good interactions with the amino acids of the active site comparable to the interactions exhibited by Diclofenac.

MeSH terms

  • Animals
  • Anti-Inflammatory Agents* / chemical synthesis
  • Anti-Inflammatory Agents* / pharmacology
  • Anti-Inflammatory Agents* / therapeutic use
  • Benzofurans* / chemistry
  • Benzofurans* / pharmacology
  • Benzofurans* / therapeutic use
  • Benzopyrans / chemistry
  • Benzopyrans / pharmacology
  • Benzopyrans / therapeutic use
  • Binding Sites
  • Carrageenan
  • Catalytic Domain
  • Computer Simulation
  • Cyclooxygenase 2 / chemistry
  • Diclofenac / therapeutic use
  • Dinoprostone / biosynthesis
  • Disease Models, Animal
  • Edema / chemically induced
  • Edema / drug therapy*
  • Gene Expression Regulation / drug effects
  • Male
  • Rats
  • Rats, Wistar

Substances

  • Anti-Inflammatory Agents
  • Benzofurans
  • Benzopyrans
  • Diclofenac
  • Carrageenan
  • Cyclooxygenase 2
  • Dinoprostone