- Novel 3-fluoro-4-morpholinoaniline derivatives: Synthesis and assessment of anti-cancer activity in breast cancer cells
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Heterocyclic morpholine compounds are well-known for their anti-cancer activity. In this study, novel morpholine and its sulfonamide derivatives were designed and synthesized as potential anti-tumor agents. The new compounds were obtained from amine derivatives via nucleophilic addition reactions, providing the desired products in 70 to 90% yield. The docking analysis was performed for all thirty-one compounds. Out of them, we represent the docking poses for compounds NAM-5 and NAM-7 as representatives. After docking analysis, compounds NAM-5 and NAM- 7 were tested for in vitro antitumor activity against breast cancer cell lines (MCF-7 and MDA-MB-231) and healthy mouse embryonic fibroblast cell line (3T3L-1). Amongst these, sulfonamide group-containing compound NAM-5 showed significant anti-proliferative activity with IC50 of 1.811 μM and 2.143 μM for MCF-7 and MDA-MB-231 cells, respectively. On the other hand, NAM-7 showed good anti-proliferative activity against MCF-7 (IC50 1.883 μM) but slightly lower activity against MDA-MB-231 cells (IC50 4.688 μM). The activity of both the compound was also tested on 3T3L-1 Cell line which showed activity similar to clinically approved anti-cancer drug doxorubicin (DOX). The cell death analysis by flow-cytometry confirmed apoptosis mediated cell death in 3T3L-1, MCF-7 and MDA-MB-231 cells when treated with the NAM-5 and NAM-7, respectively. The results demonstrated that the synthesized sulfonamide derivatives have significant potential as anti-cancer agents and have a substantial importance in cancer therapeutics with favourable safety profile. Structural analysis of docked poses of sulfonamide derivatives attempts to shed light on the structural basis of sulfonamide derivatives based anti-cancer effect.
- Gajbhiye, Jayant M.,Gajbhiye, Virendra,Jadhao, Nitin L.,Meshram, Rohan J.,More, Namita A.,Sabane, Jagjivan K.,Salve, Rajesh A.,Sawant, Sanskruti N.,Tambe, Prajakta
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- Oxazolidinone compound containing piperazine hydrazone structure
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The invention discloses an oxazolidinone compound containing a piperazine hydrazone structure. The oxazolidinone compound comprises a compound shown as a general formula (I), or stereisomer thereof, or pharmaceutically-acceptable salt thereof, or solvate thereof or prodrug thereof, wherein R1 is hydrogen, fluorine, chlorine or trifluoromethyl, R2 is -NHCOCH3 or -OH, R3 is Ar which is C5-C10 aryl substituted by any 1-3 R4 and heteroaryl, and R4 is hydrogen, hydroxyl, halogen, nitro, amino, cyan, C1-C6 alkyl, C1-C6 alkoxy, C1-C6 alkyl substituted by hydroxyl, amino or halogen, C1-C6 alkoxy substituted by hydroxyl, amino or halogen, amino substituted by mono- or bi-(C1-C6 alkyl), C1-C6 alkyl amido, free, salty, esterified and amidated hydroxyl, C1-C6 alkyl sulfinyl, C1-C6 alkyl sulfonyl, C1-C6 alkyl acyl and carbamoyl. The oxazolidinone compound can be used for preparing drug for treating microbial infection.
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Paragraph 0083; 0084
(2017/09/02)
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- HETEROCYCLIC COMPOUNDS AND USES THEREOF
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The present invention relates to pharmaceutical compounds, compositions and methods, especially as they are related to compositions and methods for the treatment and/or prevention of a proliferation disorder, a cancer, a tumor, an inflammatory disease, an autoimmune disease, psoriasis, dry eye or an immunologically related disease, and in some embodiments diseases or disorders related to the dysregulation of kinase such as, but not limited to, EGFR (including HER), Alk, PDGFR, BLK, BMX/ETK, FLT3(D835Y), ITK, TEC, TXK, BTK, or JAK, and the respective pathways.
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Paragraph 00223; 00224; 00367
(2015/02/02)
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- Synthesis and biological evaluation of novel 5-(hydroxamic acid)methyl oxazolidinone derivatives
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Research activities on the oxazolidinone antibacterial class of compounds continue to focus on developing newer derivatives with improved potency, broad-spectrum activity and safety profiles superior to linezolid. Among the safety concerns with the oxazolidinone antibacterial agents is inhibition of monoamine oxidases (MAO) resulting from their structural similarity with toloxatone, a known MAO inhibitor. Diverse substitution patterns at the C-5 position of the oxazolidinone ring have been shown to significantly affect both antibacterial activity and MAO inhibition to varying degrees. Also, the antibacterial activity of compounds containing iron-chelating functionalities, such as the hydroxamic acids, 8-hydroxyquinolines and catechols have been correlated to their ability to alter iron intake and/or metabolism. Hence a series of novel 5-(hydroxamic acid)methyl oxazolidinone derivatives were synthesized and evaluated for their antibacterial and MAO-A and -B inhibitory activities. The compounds were devoid of significant antibacterial activity but most demonstrated moderate MAO-A and -B inhibitory activities. Computer modeling studies revealed that the lack of potent antibacterial activity was due to significant steric interaction between the hydroxamic acid N-OH oxygen atom and one of the G2540 5′-phosphate oxygen atoms at the bacterial ribosomal binding site. Therefore, the replacement of the 5-acetamidomethyl group of linezolid with the 5-(N-hydroxyacetamido)methyl group present in the hydroxamic acid oxazolidinone derivatives was concluded to be detrimental to antibacterial activity. Furthermore, the 5-(hydroxamic acid)methyl oxazolidinone derivatives were also less active as MAO-A and -B inhibitors compared with linezolid and the selective inhibitors clorgyline and pargyline. In general, the 5-(hydroxamic acid)methyl oxazolidinone derivatives demonstrated moderate but selective MAO-B inhibitory activity.
- Phillips, Oludotun A.,D'Silva, Roselyn,Bahta, Teklu O.,Sharaf, Leyla H.,Udo, Edet E.,Benov, Ludmil,Eric Walters
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p. 120 - 131
(2015/11/24)
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- An azido-oxazolidinone antibiotic for live bacterial cell imaging and generation of antibiotic variants
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An azide-functionalised analogue of the oxazolidinone antibiotic linezolid was synthesised and shown to retain antimicrobial activity. Using facile 'click' chemistry, this versatile intermediate can be further functionalised to explore antimicrobial structure-activity relationships or conjugated to fluorophores to generate fluorescent probes. Such probes can report bacteria and their location in a sample in real time. Modelling of the structures bound to the cognate 50S ribosome target demonstrates binding to the same site as linezolid is possible. The fluorescent probes were successfully used to image Gram-positive bacteria using confocal microscopy.
- Phetsang, Wanida,Blaskovich, Mark A.T.,Butler, Mark S.,Huang, Johnny X.,Zuegg, Johannes,Mamidyala, Sreeman K.,Ramu, Soumya,Kavanagh, Angela M.,Cooper, Matthew A.
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p. 4490 - 4498
(2014/09/17)
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- Design, synthesis and biological activities of some 7-aminocephalosporanic acid derivatives
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The treatment of 7-ACA with 4-substituted benzensulfonyl chlorides afforded the compounds containing 4-nitro/aminophenyl sulfonylamino moiety in the cephalosporanic acid skeleton (2, 4). The synthesis of the cephalosporanic acid derivatives containing 1,3
- Basoglu, Serap,Demirbas, Ahmet,Ulker, Serdar,Alpay-Karaoglu, Sengul,Demirbas, Neslihan
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p. 622 - 631
(2013/10/22)
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- Discovery of a novel nitroimidazolyl-oxazolidinone hybrid with potent anti Gram-positive activity: Synthesis and antibacterial evaluation
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A number of linezolid analogues containing a nitroaryl-1,3,4-thiadiazole moiety, were prepared and evaluated as antibacterial agents against a panel of Gram-positive and Gram-negative bacteria. Among synthesized compounds, nitrofuran analogue 1b exhibited more potent inhibitory activity, with respect to other synthesized compounds and reference drug linezolid. The target compounds were also assessed for their cytotoxic activity against normal mouse fibroblast (NIH/3T3) cells using MTT assay. The results indicated that compound 1c exhibit potent antibacterial activity against Gram-positive bacteria at non-cytotoxic concentrations.
- Khalaj, Ali,Nakhjiri, Maryam,Negahbani, Amir Soheil,Samadizadeh, Marjaneh,Firoozpour, Loghman,Rajabalian, Saeed,Samadi, Nasrin,Faramarzi, Mohammad Ali,Adibpour, Neda,Shafiee, Abbas,Foroumadi, Alireza
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experimental part
p. 65 - 70
(2011/02/25)
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- Synthesis and antibacterial activities of eperezolid analogs with glycinyl substitutions
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A series of eperezolid analogs with glycinyl substitutions were prepared and their antibacterial activities were studied against a panel of susceptible and resistant Gram-positive bacteria. The compounds with N-arylacyl or N-heteroarylacyl glycinyl struct
- Wang, Xiao-Jun,Wu, Ning,Du, Guang-Jian,Zhao, Shuang-Qi,Yan, Ming,Gu, Lian-Quan
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scheme or table
p. 377 - 385
(2009/10/23)
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- N-(3,4-disubstituted phenyl) salicylamide derivatives
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A compound represented by the following formula (I) or a salt thereof: wherein R1, R2, R3 and R4 represent hydrogen atom, a halogen atom, cyano group, nitro group, a C1-4 alkyl group, a halogenated C
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Page/Page column 39
(2008/12/07)
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- NOVEL TRIAZOLE COMPOUNDS AS ANTIBACTERIAL AGENTS AND THEIR PHARMACEUTICAL COMPOSITIONS CONTAINING THEM
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The present invention relates to novel triazole compounds of formula (I), where all symbols are as defined in the detailed description; their pharmaceutically acceptable salts their stereosiomers thereof, their prodrugs, their rotamers, their pharmaceutical compositions containing them. The present invention also relates to a process for the preparation of the above said novel compounds.
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Page/Page column 59
(2010/02/13)
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- Synthesis and SAR of novel oxazolidinones: Discovery of ranbezolid
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Novel oxazolidinones were synthesized containing a number of substituted five-membered heterocycles attached to the 'piperazinyl-phenyl-oxazolidinone' core of eperezolid. Further, the piperazine ring of the core was replaced by other diamino-heterocycles.
- Das, Biswajit,Rudra, Sonali,Yadav, Ajay,Ray, Abhijit,Raja Rao,Srinivas,Soni, Ajay,Saini, Suman,Shukla, Shalini,Pandya, Manisha,Bhateja, Pragya,Malhotra, Sunita,Mathur, Tarun,Arora,Rattan, Ashok,Mehta, Anita
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p. 4261 - 4267
(2007/10/03)
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- Pyrazolo-[4,3-e]-1,2,4-triazolo-[1,5-c]-pyrimidine adenosine A2a receptor antagonists
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Compounds having the structural formula I or a pharmaceutically acceptable salt thereof, wherein R is optionally substituted phenyl, furanyl, thienyl, pyridyl, pyridyl N-oxide, oxazolyl or pyrrolyl, or cycloalkenyl R1, R2, R3, R4 and R5 are H, alkyl or alkoxyalkyl; and Z is optionally substituted aryl or heteroaryl are disclosed. Also disclosed is the use of compounds of formula I in the treatment of central nervous system diseases, in particular Parkinson's disease, alone or in combination with other agents for treating Parkinson's disease, and pharmaceutical compositions comprising them.
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Page/Page column 18
(2008/06/13)
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- AN IMPROVED PROCESS FOR THE SYNTHESIS OF 4-(4-BENZYLOXY-CARBONYLAMINO-2-FLUOROPHENYL)-PIPERAZINE-1-CARBOXYLIC ACID TERT-BUTYL ESTER, A KEY INTERMEDIATE FOR OXAZOLIDINONE ANTIMICROBIALS AND COMPOUNDS PREPARED THEREBY
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Provided herein are process for the synthesis of the 4-(4-benzyloxy-carbonylamino-2-fluorophenyl)-piperazine-1-carboxylic acid tert-butyl ester, which is a key intermediate in the synthesis of oxazolidinone compounds having antibacterial activity. Also pr
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Page/Page column 8
(2010/02/11)
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- NOVEL ANTIBACTERIAL AGENTS
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The present invention provides novel compounds of the general formula (I), their derivatives, their analogs, their tautomeric forms, their stereoisomers, their polymorphs, their hydrates, their solvates, their pharmaceutically acceptable salts and phar
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- 2-Alkynyl-and 2-alkenyl-pyrazolo-[4,3-e]-1,2,4-triazolo-[1,5-c]-pyrimidine adenosine A2a receptor antagonists
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Compounds having the structural formula I or a pharmaceutically acceptable salt thereof, wherein R is R1, R2, R3, R4 and R5 are H, alkyl or alkoxyalkyl; R6 is H, alkyl, hydroxyalkyl or —CH2F; R7, R8 and R9 are H, alkyl, alkoxy, alkylthio, alkoxyalkyl, halo or —CF3; and Z is optionally substituted aryl, heteroaryl or heteroaryl-alkyl are disclosed. Also disclosed is the use of compounds of formula I in the treatment of central nervous system diseases, in particular Parkinson's disease, alone or in combination with other agents for treating Parkinson's disease, and pharmaceutical compositions comprising them.
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- Dynamic kinetic resolution of epichlorohydrin via enantioselective catalytic ring opening with TMSN3. Practical synthesis of aryl oxazolidinone antibacterial agents
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The dynamic kinetic resolution of racemic epichlorohydrin has been achieved via enantioselective asymmetric ring opening with TMSN3 catalyzed by the (salen)Cr(III)N3 complex 1. The resulting 3-azido-1-chloro-2-trimethylsiloxypropane product was obtained in high enantiomeric purity and incorporated into the synthesis of U-100592, a representative from a class of highly-promising aryl oxazolidinone antibacterial agents.
- Schaus, Scott E.,Jacobsen, Eric N.
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p. 7937 - 7940
(2007/10/03)
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- Synthesis and antibacterial activity of U-100592 and U-100766, two oxazolidinone antibacterial agents for the potential treatment of multidrug-resistant gram-positive bacterial infections.
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Bacterial resistance development has become a very serious clinical problem for many classes of antibiotics. The 3-aryl-2-oxazolidinones are a relatively new class of synthetic antibacterial agents, having a new mechanism of action which involves very early inhibition of bacterial protein synthesis. We have prepared two potent, synthetic oxazolidinones, U-100592 and U-100766, which are currently in clinical development for the treatment of serious multidrug-resistant Gram-positive bacterial infections caused by strains of staphylococci, streptococci, and enterococci. The in vitro and in vivo (po and iv) activities of U-100592 and U-100766 against representative strains are similar to those of vancomycin. U-100592 and U-100766 demonstrate potent in vitro activity against Mycobacterium tuberculosis. A novel and practical asymmetric synthesis of (5S)-(acetamidomethyl)-2-oxazolidinones has been developed and is employed for the synthesis of U-100592 and U-100766. This involves the reaction of N-lithioarylcarbamates with (R)-glycidyl butyrate, resulting in excellent yields and high enantiomeric purity of the intermediate (R)-5-(hydroxymethyl)-2-oxazolidinones.
- Brickner, Steven J.,Hutchinson, Douglas K.,Barbachyn, Michael R.,Manninen, Peter R.,Ulanowicz, Debra A.,et al.
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p. 673 - 679
(2007/10/03)
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- Oxazolidinone antimicrobials containing substituted diazine moieties
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A compound of structural Formula I: STR1 or pharmaceutically acceptable salts thereof wherein: each n is independently 1 to 3; Y is chosen from a-n as defined herein; wherein each occurrence of said C1-6 alkyl may be substituted with one or mor
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