93856-98-5Relevant academic research and scientific papers
8-N-substituted-2H-isothiazolo[5,4-b]quinolizine-3,4-diones and related compounds as antiinfective agents
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Page/Page column 18, (2008/06/13)
The invention provides compounds and salts of Formula I and Formula II: which possess antimicrobial activity. The invention also provides novel synthetic intermediates useful in making compounds of Formula I and Formula II. The variables A1, A8, R2, R3, R5, R6, R7, and R9 are defined herein. Certain compounds of Formula I and Formula II disclosed herein are potent and selective inhibitors of bacterial DNA synthesis and bacterial replication. The invention also provides antimicrobial compositions, including pharmaceutical compositions, containing one or more compounds of Formula I or Formula II and one or more carriers, excipients, or diluents. Such compositions may contain a compound of Formula I or Formula II as the only active agent or may contain a combination of compounds of Formula I and/or Formula II and one or more other active agents. The invention also provides methods for treating microbial and protozoal infections in animals.
1-THIA-2,4A-DIAZA-CYCLOPENTA[B]NAPHTHALENE-3,4-DIONES AND RELATED COMPOUNDS AS ANTI-INFECTIVE AGENTS
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Page/Page column 45, (2008/06/13)
The invention provides compounds and salts of Formula (I) and Formula (II) which possess antimicrobial activity. The invention also provides novel synthetic intermediates useful in making compounds of Formula (I) and Formula (II). The variables A1, A8, R2, R3, R5, R6, R7, and R9 are defined herein. Certain compounds of Formula (I) and Formula (II) disclosed herein are potent and selective inhibitors of bacterial DNA synthesis and bacterial replication. The invention also provides antimicrobial compositions, including pharmaceutical compositions, containing one or more compounds of Formula (I) or Formula (II) and one or more carriers, excipients, or diluents. Such compositions may contain a compound of Formula (I) or Formula (II) as the only active agent or may contain a combination of a compound of Formula (I) or Formula (II) and one or more other active agents. The invention also provides methods for treating microbial infections in animals.
Isothiazolopyridones: Synthesis, structure, and biological activity of a new class of antibacterial agents
Wiles, Jason A.,Hashimoto, Akihiro,Thanassi, Jane A.,Cheng, Jijun,Incarvito, Christopher D.,Deshpande, Milind,Pucci, Michael J.,Bradbury, Barton J.
, p. 39 - 42 (2007/10/03)
We report the syntheses of first-generation derivatives of isothiazolopyridones and their in vitro evaluation as antibacterial agents. These compounds, containing a novel heterocyclic nucleus composed of an isothiazolone fused to a quinolizin-4-one (at C-2 and C-3 of the quinolizin-4-one), were prepared using a sequence of seven synthetic transformations. The solid-state structure of 7-chloro-9-ethyl-1-thia-2,4a- diazacyclopenta[b]naphthalene-3,4-dione was determined by X-ray diffraction. The prepared derivatives of desfluoroisothiazolopyridones exhibited (a) antibacterial activity against Gram-negative and Gram-positive organisms, (b) inhibitory activities against DNA gyrase and topoisomerase IV, and (c) no inhibitory activity against human topoisomerase II.
NOVEL 14 AND 15 MEMBERED-RING COMPOUNDS
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Page 43, (2008/06/13)
The present invention relates to 14- or 15-membered macrolides substituted at the 4" position of formula (I) and pharmaceutically acceptable derivatives thereof, to processes for their preparation and their use in therapy or prophylaxis of systemic or topical microbial infections in a human or animal body.
Quinolizinone type compounds
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, (2008/06/13)
Antibacterial compounds having the formula STR1 and the pharmaceutically acceptable salts, esters and amides thereof, preferred examples of which include those compounds wherein A is =CR6 --; R1 is cycloalkyl of from three to eight carbon atoms or substituted phenyl; R2 is selected from the group consisting of STR2 R3 is halogen; R4 is hydrogen, loweralkyl, a pharmaceutically acceptable cation, or a prodrug ester group; R5 is hydrogen, loweralkyl, halo(loweralkyl), or --NR13 R14 ; and R6 is halogen, loweralkyl, halo(loweralkyl), hydroxy-substituted loweralkyl, loweralkoxy(loweralkyl), loweralkoxy, or amino(loweralkyl), as well as pharmaceutical compositions containing such compounds and the use of the same in the treatment of bacterial infections.
Synthesis and structure-activity relationships of 2-pyridones: A novel series of potent DNA gyrase inhibitors as antibacterial agents
Li, Qun,Chu, Daniel T. W.,Claiborne, Akiyo,Cooper, Curt S.,Lee, Cheuk M.,Raye, Kathleen,Berst, Kristine B.,Donner, Pamela,Wang, Weibo,Hasvold, Lisa,Fung, Anthony,Ma, Zhenkun,Tufano, Michael,Flamm, Robert,Shen, Linus L.,Baranowski, John,Nilius, Angela,Alder, Jeff,Meulbroek, Jonathan,Marsh, Kennan,Crowell, DeAnne,Hui, Yuhua,Seif, Louis,Melcher, Laura M.,Henry, Rodger,Spanton, Steven,Faghih, Ramin,Klein, Larry L.,Tanaka, S. Ken,Plattner, Jacob J.
, p. 3070 - 3088 (2007/10/03)
Two novel series of 2-pyridones were synthesized by transposition of the nitrogen of 4-quinolones to the bridgehead position. This subtle interchange of the nitrogen atom with a carbon atom yielded two novel heterocyclic nuclei, pyrido[1,2-a]pyrimidine and quinolizine, which had not previously been evaluated as antibacterial agents and were found to be potent inhibitors of DNA gyrase. Quinolizines with a methyl group at the 9-position such as (S)-45a (ABT-719) demonstrate exceptional broad spectrum antibacterial activity. Most notably, they are active against resistant bacteria such as methicillin-resistant Staphylococcus aureus, vancomycin-resistant strains of enterococci, and ciprofloxacin-resistant organisms. In addition, 2-pyridones also possess favorable physiochemical and pharmacokinetic properties. These 2-pyridones were synthesized from the commercially available starting materials by 10-17 linear transformations. The structure of an adduct yielded by this sequence, (S)-45a (ABT-719), was determined by X-ray crystallographic analysis.
