title: Plasma protein binding of gyrase inhibitors.
abstract: Plasma protein binding of a wide range of gyrase inhibitors in clinical practice or trials has been determined by ultrafiltration to determine structure-protein binding relationships. The protein binding was independent of overall lipophilicity. In particular, the "western" part of the "quinolone" skeleton, consisting of a heterocyclus at position 7 and varying substituents at position 8, strongly influences the extent of protein binding, indicating that this part interacts with the plasma protein. In contrast, substituents in position N1 do not show an effect on the protein binding in this series of compounds.
authors.affiliation: Pharmaceutical Institute, University of Bonn, FRG.
authors.forename: G
authors.initials: G
authors.lastname: Zlotos
authors.forename: A
authors.initials: A
authors.lastname: Bücker
authors.forename: M
authors.initials: M
authors.lastname: Kinzig-Schippers
authors.forename: F
authors.initials: F
authors.lastname: Sorgel
authors.forename: U
authors.initials: U
authors.lastname: Holzgrabe
mesh_terms: D000327:Adsorption; D001798:Blood Proteins / Q000378:metabolism*; D002851:Chromatography, High Pressure Liquid; D004791:Enzyme Inhibitors / Q000493:pharmacokinetics*; D006440:Hemofiltration; D006863:Hydrogen-Ion Concentration; D066298:In Vitro Techniques; D009287:Naphthyridines / Q000493:pharmacokinetics; D011485:Protein Binding; D015363:Quinolones / Q000493:pharmacokinetics; D013696:Temperature; D059005:Topoisomerase II Inhibitors
chemical_list: D001798:Blood Proteins; D004791:Enzyme Inhibitors; D009287:Naphthyridines; D015363:Quinolones; D059005:Topoisomerase II Inhibitors