Results 241 to 250 of about 11,679,551 (275)

Antagonism between bactericidal activities of 4-quinolones and coumarins gives insight into 4-quinolone killing mechanisms.

Microbios, 1994
At concentrations exceeding their MICs, novobiocin and coumermycin antagonised the bactericidal activities of nalidixic acid, ciprofloxacin, ofloxacin and norfloxacin against Escherichia coli KL16. The sensitivities to killing by ciprofloxacin of four mutant derivatives of KL16 carrying gyrA, nalB, nal24 or nal31 alleles were also antagonised by ...
B M, Howard, R J, Pinney, J T, Smith
openaire   +1 more source

Synthesis and Functionalization of 4-Quinolones - A Progressing Story

Annalen der Pharmacie, 2019
P. Ghosh, S. Das
semanticscholar   +1 more source

Mild Synthesis of 4-Quinolones

Synfacts, 2023
openaire   +1 more source

Plasmid "curing" by some recently synthetized 4-quinolone compounds.

Chemioterapia : international journal of the Mediterranean Society of Chemotherapy, 1988
Nalidixic acid and two recently synthetized 4-quinolones eliminated F'lac and R-plasmids from E. coli at concentrations of one half or one quarter of the minimum inhibitory concentration (MIC). Two of the three plasmids tested were cured by all derivatives, although with different frequencies.
SELAN, Laura, SCAZZOCCHIO, Francesca, B. Oliva, S. Schippa, N. Allocati, RENZINI, Giulio   +5 more
openaire   +3 more sources

From Ketones, Amines, and Carbon Monoxide to 4-Quinolones: Palladium-Catalyzed Oxidative Carbonylation.

Organic Letters, 2017
Jiwei Wu, Yuchen Zhou, Ting Wu, Yi Zhou, Chien-Wei Chiang, A. Lei   +5 more
semanticscholar   +1 more source

Direct Synthesis of 4-Quinolones via Copper-Catalyzed Intermolecular Cyclization of Anilines and Alkynes.

Organic Letters, 2017
Xuefeng Xu, Xu Zhang
semanticscholar   +1 more source

An Improved Environmentally Friendly Approach to 4-Nitro-, 4-Sulfonyl-, and 4-Aminoquinolines and 4-Quinolones through Conjugate Addition of Nucleophiles to β-(2-Aminophenyl)-α,β-ynones

Synthesis, 2017
Navnath D. Rode, A. Arcadi, M. Chiarini, F. Marinelli   +3 more
semanticscholar   +1 more source

Metal-Free Radical Oxidative Cyclization of o-Azidoaryl Acetylenic Ketones with Sulfinic Acids To Access Sulfone-Containing 4-Quinolones.

Journal of Organic Chemistry, 2016
N. Zhou, Zhongfei Yan, Honglin Zhang, Zhongkai Wu, Chengjian Zhu   +4 more
semanticscholar   +1 more source

Transition-Metal-Free Cascade Synthesis of 4-Quinolones: Umpolung of Michael Acceptors via Ene Reaction with Arynes.

Organic Letters, 2016
R. Santhosh Reddy, Chandraiah Lagishetti, I. N. Chaithanya Kiran, Hengyao You, Yun He   +4 more
semanticscholar   +1 more source

[New 4-quinolones].

Vutreshni bolesti, 1990
D, Monova, N, Belovezhdov
openaire   +1 more source