- 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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- HETEROARYL RHEB INHIBITORS AND USES THEREOF
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The present invention provides compounds, compositions thereof, and methods of using the same. Compositions comprising a compound of this invention or a pharmaceutically acceptable derivative thereof and a pharmaceutically acceptable carrier, adjuvant, or vehicle. The amount of the compound in compositions of this invention is such that it is effective to measurably inhibit Rheb, in a biological sample or in a patient.
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Paragraph 00507
(2018/11/10)
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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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- 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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- 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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