title: Synthesis and antioxidant capacities of some new benzimidazole derivatives.
abstract: In this study, we prepared some new oxadiazolyl benzimidazole derivatives and investigated their antioxidant properties by determination of microsomal NADPH-dependent inhibition of lipid peroxidation levels (LP assay) and microsomal ethoxyresorufin O-deethylase activity (EROD assay). Some of these compounds 20, 23 had slightly inhibitory effects (28%) on the lipid peroxidation levels at 10(-3 )M concentration lower than standard BHT (65%). 5-[2-(Phenyl)-benzimidazol-1-yl-methyl]-2-mercapto-[1,3,4]-oxadiazole 16 was found to be more active than caffeine on the ethoxyresorufin O-deethylase activity with an IC(50 )value of 2.0 6 10(-4 )M.
authors.affiliation: Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ankara University, Tandogan, Ankara, Turkey. kilcigil@pharmacy.ankara.edu.tr
authors.forename: Gülgün
authors.initials: G
authors.lastname: Ayhan-Kilcigil
authors.forename: Canan
authors.initials: C
authors.lastname: Kus
authors.forename: Elçin D
authors.initials: ED
authors.lastname: Ozdamar
authors.forename: Benay
authors.initials: B
authors.lastname: Can-Eke
authors.forename: Mümtaz
authors.initials: M
authors.lastname: Iscan
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D001562:Benzimidazoles / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D019363:Cytochrome P-450 CYP1A1 / Q000378:metabolism; D015195:Drug Design; D015227:Lipid Peroxidation / Q000187:drug effects; D008297:Male; D008862:Microsomes, Liver / Q000187:drug effects* / Q000378:metabolism; D051381:Rats; D017208:Rats, Wistar; D017392:Thiobarbituric Acid Reactive Substances / Q000378:metabolism
chemical_list: D000975:Antioxidants; D001562:Benzimidazoles; D017392:Thiobarbituric Acid Reactive Substances; D019363:Cytochrome P-450 CYP1A1