111453-56-6Relevant articles and documents
Heterocycles [h]fused onto 4-oxoquinolines. Part I. synthesis of 6-oxo-6,9-dihydro[1,2,5]oxadiazolo[3,4-h-quinoline-7-carboxylic acid N-oxide
Al-Hiari, Yusuf M.,Khanfar, Monther A.,Qaisi, Ali M.,Abu Shuheil, Mohammad Y.,El-Abadelah, Mustafa M.,Boese, Roland
, p. 1163 - 1172 (2006)
Ethyl 9-cyclopropyl-4-fluoro-6-oxo-6,9-dihydro[ 1,2,5]oxadiazolo[3,4-h]quinoline-7-carboxylate N(3)-oxide (3) is synthesized via pyrolysis of the 7-azido-8-nitroquinoline-3-carboxylate precursor (6). Acid-catalyzed hydrolysis of the product (3) afforded t
Indolo[2,3-b]-, Indeno[1,2-b]- and Indeno[2,1-b]pyrido[2,3-f] quinoxaline-3-carboxylic acids and esters, processes for their preparation and their use as antiviral, antibiotic and antitumor agents
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Page/Page column 13; 15, (2009/12/23)
The present invention relates to novel quinoxaline derivatives represented by regioisomeric structures of quinoxalines of general formulas I and/or II, wherein the COOR1 group independently is an acid, an ester and/or a salt, Y1 and/
Quinolone Antibacterial Agents. Synthesis and Structure-Activity Relationships of 8-Substituted Quinoline-3-carboxylic Acids and 1,8-Naphthyridine-3-carboxylic Acids
Sanchez, Joseph P.,Domagala, John M.,Hagen, Susan E.,Heifetz, Carl L.,Hutt, Marland P.,et al.
, p. 983 - 991 (2007/10/02)
A series of 7,8-disubstituted 1-cyclopropyl-6-fluoroquinoline-3-carboxylic acids, 7-substituted 1-cyclopropyl-6-fluoro-1,8-naphthyridine-3-carboxylic acids, and 10-substituted 9-fluoropyridobenzoxazine-6-carboxylic acids has been prepared and evaluated for antibacterial activity.The side chains examined at the 7-position (benzoxazine 10-position) included piperazinyl (g), 3-aminopyrrolidinyl (a), 3-(aminomethyl)pyrrolidinyl (b), and alkylated 3-(aminomethyl)pyrrolidinyl (c-f).Variations ta C-8 of the quinolone ring system included hydrogen, nitro, amino, fluorine and chlorine.The relative enhancement of in vitro activities by the side chains on the 8-hydrogen quinolone and 1,8-naphthyridine against Gram-negative organisms was a > b > g > c-f.The activity imparted to the substituted quinolone nucleus by the 8-substituent was in the order F > Cl > naphthyridine > H > benzoxazine > NH2 > NO2.These trends were retained in vivo.