700370-33-8Relevant articles and documents
Compound design guidelines for evading the efflux and permeation barriers of Escherichia coli with the oxazolidinone class of antibacterials: Test case for a general approach to improving whole cell Gram-negative activity
Spaulding, Andrew,Takrouri, Khuloud,Mahalingam, Pornachandran,Cleary, Dillon C.,Cooper, Harold D.,Zucchi, Paola,Tear, Westley,Koleva, Bilyana,Beuning, Penny J.,Hirsch, Elizabeth B.,Aggen, James B.
, p. 5310 - 5321 (2017/11/13)
Previously we reported the results from an effort to improve Gram-negative antibacterial activity in the oxazolidinone class of antibiotics via a systematic medicinal chemistry campaign focused entirely on C-ring modifications. In that series we set about testing if the efflux and permeation barriers intrinsic to the outer membrane of Escherichia coli could be rationally overcome by designing analogs to reside in specific property limits associated with Gram-negative activity: i) low MW (7.4 1), and iii) zwitterionic character at pH 7.4. Indeed, we observed that only analogs residing within these limits were able to overcome these barriers. Herein we report the results from a parallel effort where we explored structural changes throughout all three rings in the scaffold for the same purpose. Compounds were tested against a diagnostic MIC panel of Escherichia coli and Staphylococcus aureus strains to determine the impact of combining structural modifications in overcoming the OM barriers and in bridging the potency gap between the species. The results demonstrated that distributing the charge-carrying moieties across two rings was also beneficial for avoidance of the outer membrane barriers. Importantly, analysis of the structure-permeation relationship (SPR) obtained from this and the prior study indicated that in addition to MW, polarity, and zwitterionic character, having ≤4 rotatable bonds is also associated with evasion of the OM barriers. These combined results provide the medicinal chemist with a framework and strategy for overcoming the OM barriers in GNB in antibacterial drug discovery efforts.
NOVEL OXAZOLIDINONE DERIVATIVE AND MEDICAL COMPOSITION CONTAINING SAME
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Paragraph 0192-0193, (2014/02/16)
Disclosed is a novel oxazolidinone derivative represented by Formula 1 above, in particular, a novel oxazolidinone compound having a cyclic amidoxime or cyclic amidrazone group. In Formula 1, R and Q are the same as defined in the detailed description. In addition, disclosed is a pharmaceutical composition for an antibiotic which includes the novel oxazolidinone derivative of Formula 1, a prodrug thereof, a hydrate thereof, a solvate thereof, an isomer thereof, or a pharmaceutically acceptable salt thereof as an active ingredient. The novel oxazolidinone derivative, the prodrug thereof, the hydrate thereof, the solvate thereof, the isomer thereof, and the pharmaceutically acceptable salt thereof have broad antibacterial spectrum against resistant bacteria, low toxicity and strong antibacterial effects against Gram-positive and Gram-negative bacteria and thus may be effectively used as antibiotics.
NOVEL OXAZOLIDINONE DERIVATIVE AND MEDICAL COMPOSITION CONTAINING SAME
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Paragraph 203-205, (2014/07/08)
Disclosed is a novel oxazolidinone derivative represented by Formula 1 above, in particular, a novel oxazolidinone compound having a cyclic amidoxime or cyclic amidrazone group. In Formula 1, R and Q are the same as defined in the detailed description. In addition, disclosed is a pharmaceutical composition for an antibiotic which includes the novel oxazolidinone derivative of Formula 1, a prodrug thereof, a hydrate thereof, a solvate thereof, an isomer thereof, or a pharmaceutically acceptable salt thereof as an active ingredient. The novel oxazolidinone derivative, the prodrug thereof, the hydrate thereof, the solvate thereof, the isomer thereof, and the pharmaceutically acceptable salt thereof have broad antibacterial spectrum against resistant bacteria, low toxicity and strong antibacterial effects against Gram-positive and Gram-negative bacteria and thus may be effectively used as antibiotics.
OXAZOLIDINONE DERIVATIVE HAVING FUSED RING
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Page/Page column 61, (2011/05/05)
The present invention provides a novel antimicrobial drug comprising an oxazolidinone derivative of the formula (I): or a pharmaceutically acceptable salt or solvate thereof; wherein ring A is ring B is a benzene ring optionally substituted with lower alkyl; ring C is an optionally substituted six-membered heterocycle containing at least one nitrogen atom and one to three double bond(s) in the ling wherein the atom at the point of attachment to ring B is a carbon atom; ring D is an optionally substituted five-membered ring containing one or two double bond(s) in the ring; A1 and A2 are independently nitrogen or carbon; m is 0 or 1; R represents H, —NHC(═O)RA, —NHC(═S)RA, —NH-het1, —O-het1, —S-het1, —S(═O)-het1, —S(═O)2-het1, het2, —CONHRA, —OH, lower alkyl, lower alkoxy or lower alkenyl; and het1 and het2 are independently a heterocyclic group; with the proviso that the fused ring C-D is not
Synthesis and structure-activity relationship studies of highly potent novel oxazolidinone antibacterials
Komine, Takashi,Kojima, Akihiko,Asahina, Yoshikazu,Saito, Tatsuhiro,Takano, Hisashi,Shibue, Taku,Fukuda, Yasumichi
supporting information; experimental part, p. 6558 - 6562 (2009/10/23)
Novel antibacterial biaryl oxazolidinones bearing an aza-, an oxa-, or a thiabicyclo[3.1.0]hex-6-yl ring system were synthesized, and their in vitro antibacterial activity and structure-activity relationships (SAR) were evaluated. Most of the synthesized
Novel substituted (pyridin-3-yl)phenyloxazolidinones: Antibacterial agents with reduced activity against monoamine oxidase A and increased solubility
Reck, Folkert,Zhou, Fei,Eyermann, Charles J.,Kern, Gunther,Carcanague, Dan,Ioannidis, Georgine,Illingworth, Ruth,Poon, Grace,Gravestock, Michael B.
, p. 4868 - 4881 (2008/03/12)
Oxazolidinones represent a new and promising class of antibacterial agents. Current research in this area is mainly concentrated on improving the safety profile and the antibacterial spectrum. Oxazolidinones bearing a (pyridin-3-yl)phenyl moiety (e.g., 3) generally show improved antibacterial activity compared to linezolid but suffer from potent monoamine oxidase A (MAO-A) inhibition and low solubility. We now disclose the finding that new analogues of 3 with acyclic substituents on the pyridyl moiety exhibit excellent activity against Gram-positive pathogens, including linezolid-resistant Streptococcus pneumoniae. Generally, more bulky substituents yielded significantly reduced MAO-A inhibition relative to the unsubstituted compound 3. The MAO-A SAR can be rationalized on the basis of docking studies using a MAO-A/MAO-B homology model. Solubility was enhanced with incorporation of polar groups. One optimized analogue, compound 13, showed low clearance in the rat and efficacy against S. pneumoniae in a mouse pneumonia model.
PROCESS FOR THE PREPARATION OF ARYL SUBSTITUTED OXAZOLIDINONES AS INTERMEDIATES FOR ANTIBACTERIAL AGENTS
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Page/Page column 25-26, (2008/06/13)
A compound of the formula (VIII) wherein each X is independently H or F; and R is selected from hydrogen, halogen, cyano, methyl, cyanomethyl, fluoromethyl, difluoromethyl, trifluoromethyl and -Si[(1-4C)alkyl]3; and processes for preparing a co
3- (4- (2-DIHYDROISOXAZOL-3-YLPYRIDIN-5-YL) PHENYL) -5-TRIAZOL-1-YLMETHYLOXAZOLIDIN-2-ONE DERIVAIVES AS MAO INHIBITORS FOR THE TREATMENT OF BACTERIAL INFECTIONS
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Page/Page column 46, (2010/02/15)
Compounds of formula (I) as well as pharmaceutically-acceptable salts and pro-drugs thereof are disclosed wherein R1, R2, R3, and R4 are defined herein. Also disclosed are processes for making compounds of formu
3-[4-(6-{4,5-DIHYDROISOXAZOL-3-YL}PYRIDIN-3-YL)-3-PHENYL]-5-(1H-1,2,3-TRIAZOL-1-YLMETHYL)-1,3-OXAZOLIDIN-2-ONES AS ANTIBACTERIAL AGENTS
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Page/Page column 53-54, (2010/02/15)
Compounds of the formula (I): or a pharmaceutically- acceptable salt or pro-drug thereof: wherein R1 is selected for example from hydrogen, halogen, optionally substituted methyl; R2 and R3 are independently selected from
3- {4- (PYRIDIN-3-YL) PHENYL} -5- (1H-1, 2, 3-TRIAZOL-1-YLMETHYL) -1, 3-OXAZOLIDIN-2-ONES AS ANTIBACTERIAL AGENTS
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Page/Page column 43, (2010/02/15)
Compounds of formula (I), as well as pharmaceutically-acceptable salts and pro-drugs thereof, are disclosed wherein R1, R2, R3, and R4 are defined herein. Also disclosed are processes for making compounds of formula (I) as well as methods of using compounds of formula (I) for treating bacterial infections.
