PMID: 7932562Sep 30, 1994Paper

(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

Journal of Medicinal Chemistry
Y KimuraI Hayakawa

Abstract

A 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.

Citations

Nov 1, 1995·Diagnostic Microbiology and Infectious Disease·R N JonesS A Marshall
Mar 10, 2005·Bioorganic & Medicinal Chemistry·Bo LiuYu-Yuan Xie
Jun 30, 2011·Chemical Reviews·Oleksandr O GrygorenkoIgor V Komarov
Jun 9, 2005·Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America·Vincent T Andriole
Oct 23, 2008·Beilstein Journal of Organic Chemistry·Takehisa IshimaruTakeshi Toru
Oct 31, 2012·Chemistry : a European Journal·Emilie DavidXavier Pannecoucke
Jan 31, 2020·Organic & Biomolecular Chemistry·Armands KaziaJanis Veliks
Aug 12, 2017·Chemistry : a European Journal·Bohdan A ChalykPavel K Mykhailiuk
Aug 23, 2019·Organic Letters·Renate MelngaileJanis Veliks
Jul 11, 2014·The Journal of Organic Chemistry·Taku Shibue, Yasumichi Fukuda

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