title: CYP17 inhibitors. Annulations of additional rings in methylene imidazole substituted biphenyls: synthesis, biological evaluation and molecular modelling.
abstract: Twenty-one novel compounds originating from two classes of annulated biphenyls were synthesized as mimetics of the steroidal A- and C-rings and examined for their potency as inhibitors of human CYP17. Selected compounds were tested for inhibition of the hepatic CYP enzyme 3A4. Potent CYP17 inhibitors were found for each class, compound 9 (17 and 71% at 0.2 and 2 microM, respectively) and 21 (591 nM). Compound 21 showed only weak inhibition of CYP3A4 (32 and 64% at 2 and 10 microM, respectively). Both compounds, however, exhibited moderate to strong inhibition of the glucocorticoid-forming enzyme CYP11B1. The most interesting compounds were docked into our protein model. They bound into one of the modes which we have previously published. New interaction regions were identified.
authors: Pharmaceutical and Medicinal Chemistry, Saarland University, Saarbrücken, Germany.
authors: Mariano A E
authors: MA
authors: Pinto-Bazurco Mendieta
authors: Matthias
authors: M
authors: Negri
authors: Qingzhong
authors: Q
authors: Hu
authors: Ulrike E
authors: UE
authors: Hille
authors: Carsten
authors: C
authors: Jagusch
authors: Kerstin
authors: K
authors: Jahn-Hoffmann
authors: Ursula
authors: U
authors: Müller-Vieira
authors: Dirk
authors: D
authors: Schmidt
authors: Thomas
authors: T
authors: Lauterbach
authors: Rolf W
authors: RW
authors: Hartmann
mesh_terms: D001713:Biphenyl Compounds / Q000737:chemistry*; D051544:Cytochrome P-450 CYP3A; D065692:Cytochrome P-450 CYP3A Inhibitors; D015195:Drug Design; D004791:Enzyme Inhibitors / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D004926:Escherichia coli / Q000201:enzymology; D006801:Humans; D007093:Imidazoles / Q000737:chemistry*; D008297:Male; D008958:Models, Molecular; D008968:Molecular Conformation; D011471:Prostatic Neoplasms / Q000188:drug therapy / Q000201:enzymology; D013252:Steroid 11-beta-Hydroxylase / Q000037:antagonists & inhibitors; D013254:Steroid 17-alpha-Hydroxylase / Q000037:antagonists & inhibitors* / Q000096:biosynthesis; D013329:Structure-Activity Relationship
chemical_list: D001713:Biphenyl Compounds; D065692:Cytochrome P-450 CYP3A Inhibitors; D004791:Enzyme Inhibitors; D007093:Imidazoles; D051544:Cytochrome P-450 CYP3A; D013254:Steroid 17-alpha-Hydroxylase; C510163:CYP3A4 protein, human; D013252:Steroid 11-beta-Hydroxylase