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pubmed-article:7932562pubmed:abstractTextA series of novel chiral 7-(7-amino-5-azaspiro[2.4]heptan-4-yl)-8-chloro-1-(2-fluo rocyclopropyl)- quinolones were synthesized as a continuation of a research project of 1-(2-fluorocyclopropyl)-quinolones by considering stereochemical and physicochemical properties of the molecule. Absolute configurations of the 1-(cis-2-fluorocyclopropyl) moiety and the 7-(7-amino-5-azaspiro-[2.4]heptan-5-yl) moiety were determined by X-ray crystallographic analysis. Stereochemical structure-activity relationship studies indicated that 1-[(1R,2S)-2-fluorocyclopropyl] and 7-[(7S)-amino-5-azaspiro[2.4]heptan-5-yl] derivatives are more potent against Gram-positive and Gram-negative bacteria than the other stereoisomers and 7-[(7S)-7-amino-5-azaspiro[2.4]-heptan-5-yl]-8-chloro-1-[(1R ,2S)-2- fluorocyclopropyl]quinolone (33) is the most potent of all stereoisomers. Pharmacokinetic profiles and physicochemical properties of the selected compounds were also examined, and it was found that 33 (DU-6859a) possesses moderate lipophilicity and good pharmacokinetic profiles.lld:pubmed
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pubmed-article:7932562pubmed:articleTitle(Fluorocyclopropyl)quinolones. 2. Synthesis and Stereochemical structure-activity relationships of chiral 7-(7-amino-5-azaspiro[2.4]heptan-5-yl)-1-(2-fluorocyclopropyl)quinolone antibacterial agents.lld:pubmed
pubmed-article:7932562pubmed:affiliationExploratory Research Laboratories I, Daiichi Pharmaceutical Co., Ltd., Tokyo, Japan.lld:pubmed
pubmed-article:7932562pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:7932562pubmed:publicationTypeComparative Studylld:pubmed
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