title: Synthesis and in vivo analgesic and anti-inflammatory activity of some bi heterocyclic coumarin derivatives.
abstract: Sets of coumarinyl ethers having chromone, benzofuranyl and 4-hydroxy coumarins (4, 5, 6) were prepared and tested for analgesic and antiinflammatory activity. The 4-(4'-acetyl-3'-hydroxy-phenoxymethyl)-coumarin 3 were synthesised by the reaction of 4-bromo methyl coumarin with 2, 4-dihydroxy acetophenones, were found to less active. Further compound 3 having the ortho hydroxy moiety was cyclised to chromones 4 and benzofurans 5 were found to enhance the analgesic and anti-inflammatory activity. The cyclisation to 4-hydroxy coumarin 6 was found to be reducing the anti-inflammatory and analgesic activity in this series. These newly synthesized compounds were found to produce less toxicity and less ulcerogenic effects.
authors.affiliation: Department of Pharmaceutical Chemistry, Krupanidhi College of Pharmacy Bangalore-560034. ghate72@yahoo.com
authors.forename: Manjunath
authors.initials: M
authors.lastname: Ghate
authors.forename: R A
authors.initials: RA
authors.lastname: Kusanur
authors.forename: M V
authors.initials: MV
authors.lastname: Kulkarni
mesh_terms: D000700:Analgesics / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D000818:Animals; D000893:Anti-Inflammatory Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D000925:Anticoagulants / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D003374:Coumarins / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D004353:Drug Evaluation, Preclinical; D004987:Ethers / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D005260:Female; D006571:Heterocyclic Compounds / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D008297:Male; D051379:Mice; D015394:Molecular Structure; D051381:Rats
chemical_list: D000700:Analgesics; D000893:Anti-Inflammatory Agents; D000925:Anticoagulants; D003374:Coumarins; D004987:Ethers; D006571:Heterocyclic Compounds