title: Design and synthesis of substituted imidazole and triazole N-phenylbenzo[d]oxazolamine inhibitors of retinoic acid metabolizing enzyme CYP26.
abstract: The design of N-phenylbenzo[d]oxazolamines as CYP26A1 inhibitors involved ligand docking experiments using molecular modeling (FlexX) and analysis of ligand interactions at the binding domain. The synthesis of the benzooxazol-2-yl-[phenyl-imidazol-1-yl-methyl)phenyl]amines was achieved by cyclisation of the corresponding isothiocyanates with subsequent introduction of the haem-binding heterocycle. Triazole and tetrazole derivatives were also prepared for comparison with the lead imidazole derivative. The benzooxazol-2-yl-[phenyl-imidazol-1-yl-methyl)phenyl]amines with small substituents in the phenyl ring were moderately potent CYP26A1 inhibitors (IC(50) 8 and 12 microM) and comparable with liarozole (IC(50) 7 microM).
authors.affiliation: Medicinal Chemistry, Welsh School of Pharmacy, Cardiff University, UK.
authors.forename: Stephane
authors.initials: S
authors.lastname: Pautus
authors.forename: Ahmed S
authors.initials: AS
authors.lastname: Aboraia
authors.forename: Claire E
authors.initials: CE
authors.lastname: Bassett
authors.forename: Andrea
authors.initials: A
authors.lastname: Brancale
authors.forename: Michael P
authors.initials: MP
authors.lastname: Coogan
authors.forename: Claire
authors.initials: C
authors.lastname: Simons
mesh_terms: D045744:Cell Line, Tumor; D065607:Cytochrome P-450 Enzyme Inhibitors; D003577:Cytochrome P-450 Enzyme System / Q000378:metabolism; D004791:Enzyme Inhibitors / Q000138:chemical synthesis* / Q000494:pharmacology; D006801:Humans; D007093:Imidazoles / Q000138:chemical synthesis* / Q000494:pharmacology; D008024:Ligands; D008958:Models, Molecular; D000072516:Retinoic Acid 4-Hydroxylase; D013379:Substrate Specificity; D014230:Triazoles / Q000138:chemical synthesis* / Q000494:pharmacology
chemical_list: D065607:Cytochrome P-450 Enzyme Inhibitors; D004791:Enzyme Inhibitors; D007093:Imidazoles; D008024:Ligands; D014230:Triazoles; D003577:Cytochrome P-450 Enzyme System; D000072516:Retinoic Acid 4-Hydroxylase; C061121:liarozole