Synthesis, Properties, and Biological Activities of 2-Methyl- and 2-Styrylquinoline-4-Carboxylic Acids
作者:A. N. Dubrovin、A. I. Mikhalev、S. V. Ukhov、A. G. Goldshtein、V. V. Novikova、T. F. Odegova、R. R. Makhmudov
DOI:10.1007/s11094-015-1275-z
日期:2015.8
Reaction of 2-methylquinoline-4-carboxylic acids with aromatic aldehydes in the presence of catalyst was performed to synthesize previously unknown 2-styrylquinoline-4-carboxylic acids. The structures of these compounds were verified using spectroscopic methods. Biological testing on animals showed that some of the resulting compounds had anti-inflammatory, analgesic, antimicrobial, and antifungal activity.
Synthesis of substituted 4-([1,2,4]triazolo[3,4-b]-[1,3,4]thiadiazol-6-yl)quinolines
作者:N. D. Obushak、N. T. Pokhodylo、I. I. Krupa、V. S. Matiichuk
DOI:10.1134/s1070428007080246
日期:2007.8
4-Amino-5-R-1-4H-1,2,4-triazole-3-thiols react with 2-R-2-6-R-3-quinoline-4-carboxylic acids in phosphoryl chloride to give 2-R-2-6-R-3-4-(3-R-1-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-yl)quinolines.
作者:E. R. Buchman、H. Sargent、T. C. Myers、J. A. Seneker
DOI:10.1021/ja01216a083
日期:1946.12
Bioevaluation of quinoline‐4‐carbonyl derivatives of piperazinyl‐benzothiazinones as promising antimycobacterial agents
作者:Santosh K. Sahoo、Siva N. R. Gajula、Mohammad N. Ahmad、Grace Kaul、Srinivas Nanduri、Rajesh Sonti、Arunava Dasgupta、Sidharth Chopra、Venkata M. Yaddanapudi
DOI:10.1002/ardp.202200168
日期:2022.11
AbstractThe quinoline moiety remains a privileged antitubercular (anti‐TB) pharmacophore, whereas 8‐nitrobenzothiazinones are emerging potent antimycobacterial agents with two investigational candidates in the clinical pipeline. Herein, we report the synthesis and bioevaluation of 30 piperazinyl‐benzothiazinone‐based quinoline hybrids as prospective anti‐TB agents. Preliminary evaluation revealed 24/30 compounds exhibiting substantial activity (minimum inhibitory concentration [MIC] = 0.06–1 µg/ml) against Mycobacterium tuberculosis (Mtb) H37Rv. Cytotoxicity analysis against Vero cells found these to be devoid of any significant toxicity, with the majority displaying a selectivity index of >80. Furthermore, potent nontoxic compounds, when screened against clinical isolates of drug‐resistant Mtb strains, demonstrated equipotent inhibition with MIC values of 0.03–0.25 µg/ml. A time‐kill study identified a lead compound exhibiting concentration‐dependent bactericidal activity, with 10× MIC completely eliminating Mtb bacilli within 7 days. Along with acceptable aqueous solubility and microsomal stability, the optimum active compounds of the series manifested all desirable traits of a promising antimycobacterial candidate.