116248-10-3Relevant academic research and scientific papers
Synthesis, quantum mechanical calculations, antimicrobial activities and molecular docking studies of five novel 2,5-disubstituted benzoxazole derivatives
Arisoy, Mustafa,Celik, Ismail,Erol, Meryem,Kaynak-Onurdag, Fatma,Temiz-Arpaci, Ozlem,Zeyrek, Celal Tu?rul
, (2021/07/24)
In this study, five new 2-(p-(Substituted)phenyl)-5-(3-(4-ethylpiperazine-1-yl) propionamido)benzoxazole derivatives (B7-B11) were designed, synthesized, and their antimicrobial activities were determined by the microdilution method. The novel benzoxazole compounds were characterized using FTIR, 1H NMR, and 13C NMR spectroscopy, mass spectroscopy, and elemental analysis. B7 and B11 showed promising activity against P. aeruginosa isolate at 16 μg/mL compared to the reference drugs. Quantum mechanical calculations were performed on five compounds in the ground state using density functional theory (DFT) with the B3LYP/6–311G(d,p) level. Molecular docking studies of the compounds were also performed a complex structure of the DNA gyrase enzyme with ciprofloxacin (PDB: 2XCT), and it was observed that the binding poses were similar to ciprofloxacin. Theoretical ADME profiles of the compounds conform to Lipinski and other limiting rules.
Expanding Benzoxazole-Based Inosine 5′-Monophosphate Dehydrogenase (IMPDH) Inhibitor Structure-Activity As Potential Antituberculosis Agents
Chacko, Shibin,Boshoff, Helena I. M.,Singh, Vinayak,Ferraris, Davide M.,Gollapalli, Deviprasad R.,Zhang, Minjia,Lawson, Ann P.,Pepi, Michael J.,Joachimiak, Andrzej,Rizzi, Menico,Mizrahi, Valerie,Cuny, Gregory D.,Hedstrom, Lizbeth
, p. 4739 - 4756 (2018/05/23)
New drugs and molecular targets are urgently needed to address the emergence and spread of drug-resistant tuberculosis. Mycobacterium tuberculosis (Mtb) inosine 5′-monophosphate dehydrogenase 2 (MtbIMPDH2) is a promising yet controversial potential target
Synthesis, molecular docking and antimicrobial evaluation of novel benzoxazole derivatives
Ertan-Bolelli, Tugba,Yildiz, Ilkay,Ozgen-Ozgacar, Selda
, p. 553 - 567 (2016/03/08)
In this research, previously and newly synthesized 5-amino-2-(4-substitutedphenyl/benzyl)benzoxazoles (3a-3l) and 2-substituted-5-(4-nitro/aminophenylsulfonamido)benzoxazoles (5a-5l, 6a-6l) were evaluated for their antimicrobial activities against Pseudom
Synthesis of some piperazinobenzoxazole derivatives and their antimicrobial properties
Arisoy, Mustafa,Temiz-Arpaci, Ozlem,Kaynak-Onurdag, Fatma,Ozgen, Selda
, p. 240 - 247 (2017/01/18)
A series of 2-(p-substitutedphenyl/benzyl)-5-[3-[4-[(p-chlorophenyl)/phenyl]piperazin-1-yl]propionamido]-benzoxazoles (3-22) have been synthesized towards discovering new antimicrobial compounds in order to fight against pathogens, which have become resistant to antibiotics and are the cause of increased mortality and morbidity throughout the world. Structures of new derivatives have been elucidated by spectral techniques. New and previously synthesized benzoxazoles have been evaluated for their antibacterial and antifungal activity against standard strains, and their drug-resistant isolates in comparison with reference drugs. This study is aimed to investigate the efficacy of the antimicrobial effect of different amido bridges on the same homologue structures of benzoxazole compounds. Compounds 3-22 exhibit broad antibacterial activity with MIC (Minimum Inhibitory Concentration) values of 128-256 μg/mL against Staphylococcus aureus and its isolate except for derivative 7 that has a MIC value of 32 μg/mL against S. aureus isolate and compounds 3 and 22 which have MIC value of 512 μg/mL against S. aureus. Also, the tested compounds 3-22 possess low antifungal activity with MIC values of 128 μg/mL against Candida albicans in comparison with antifungal reference drugs, fluconazole and amphotericin B.
Synthesis and biological evaluation of 2-substituted-5-(4- nitrophenylsulfonamido)benzoxazoles as human GST P1-1 inhibitors, and description of the binding site features
Ertan-Bolelli, Tu?ba,Musdal, Yaman,Bolelli, Kayhan,Yilmaz, Serap,Aksoy, Yasemin,Yildiz, Ilkay,Aki-Yalcin, Esin,Yalcin, Ismail
, p. 984 - 992 (2014/05/20)
Glutathione-S-transferases (GSTs) are enzymes involved in cellular detoxification by catalyzing the nucleophilic attack of glutathione (GSH) on the electrophilic center of numerous of toxic compounds and xenobiotics, including chemotherapeutic drugs. Huma
Discovery of 2-arylbenzoxazoles as upregulators of utrophin production for the treatment of duchenne muscular dystrophy
Chancellor, Daniel R.,Davies, Kay E.,De Moor, Olivier,Dorgan, Colin R.,Johnson, Peter D.,Lambert, Adam G.,Lawrence, Daniel,Lecci, Cristina,Maillol, Carole,Middleton, Penny J.,Nugent, Gary,Poignant, Séverine D.,Potter, Allyson C.,Price, Paul D.,Pye, Richard J.,Storer, Richard,Tinsley, Jonathon M.,Van Well, Renate,Vickers, Richard,Vile, Julia,Wilkes, Fraser J.,Wilson, Francis X.,Wren, Stephen P.,Wynne, Graham M.
supporting information; experimental part, p. 3241 - 3250 (2011/07/06)
Figure Presented. A series of novel 2-arylbenzoxazoles that upregulate the production of utrophin in murine H2K cells, as assessed using a luciferase reporter linked assay, have been identified. This compound class appears to hold considerable promise as a potential treatment for Duchenne muscular dystrophy. Following the delineation of structure-activity relationships in the series, a number of potent upregulators were identified, and preliminary ADME evaluation is described. These studies have resulted in the identification of 1, a compound that has been progressed to clinical trials.
Synthesis, biological evaluation and 2D-QSAR analysis of benzoxazoles as antimicrobial agents
Ertan, Tugba,Yildiz, Ilkay,Tekiner-Gulbas, Betul,Bolelli, Kayhan,Temiz-Arpaci, Ozlem,Ozkan, Semiha,Kaynak, Fatma,Yalcin, Ismail,Aki, Esin
experimental part, p. 501 - 510 (2009/09/05)
A new series of 5(or 6)-nitro/amino-2-(substituted phenyl/benzyl)benzoxazole derivatives (1a-1m, 2a-2l) were synthesized and evaluated for antibacterial and antifungal activities against Staphylococcus aureus, Bacillus subtilis, Klebsiella pneumoniae, Pse
Synthesis, antimicrobial activity, pharmacophore analysis of some new 2-(substitutedphenyl/benzyl)-5-[(2-benzofuryl)carboxamido]benzoxazoles
Alper-Hayta, Sabiha,Arisoy, Mustafa,Temiz-Arpaci, Oezlem,Yildiz, Ilkay,Aki, Esin,Oezkan, Semiha,Kaynak, Fatma
, p. 2568 - 2578 (2008/12/23)
The synthesis and antimicrobial activity of a new series of 2-(substitutedphenyl/benzyl)-5-[(2-benzofuryl)carboxamido]benzoxazole derivatives 3-12 were described. The in vitro antimicrobial activity of the compounds was determined against some Gram-positi
Synthesis and antimicrobial activity of some 5-[2-(morpholin-4-yl) acetamido] and/or 5-[2-(4-substituted piperazin-1-yl)acetamido]-2-(p-substituted phenyl)benzoxazoles
Temiz-Arpaci, Oezlem,Oezdemir, Aliye,Yalcin, Ismail,Yildiz, Ilkay,Aki-Sener, Esin,Altanlar, Nurten
, p. 105 - 111 (2007/10/03)
In this study, a series of twelve novel 5-[2-(morpholin-4-yl)acetamido] and/or 5-[2-(4-substituted piperazine-1-yl)acetamido]-2-(p-substituted phenyl)benzoxazole derivatives have been synthesized and their structures were confirmed by IR, 1H NM
Synthesis and antimicrobial activity of some novel 2-(p-substituted-phenyl)-5-substituted-carbonylaminobenzoxazoles.
Arpaci, Ozlem Temiz,Oren, Ilkay,Altanlar, Nurten
, p. 175 - 181 (2007/10/03)
A series of 2-(p-substituted-phenyl)-5-substituted-carbonylamino benzoxazole derivatives (5-22) was synthesized and their antimicrobial activities determined in comparison to several control drugs. The synthesized compounds were tested in vitro against Staphylococcus aureus, Streptococcus faecalis and Bacillus subtilis as Gram-positive, Pseudomonas aeruginosa and Escherichia coli as Gram-negative bacteria and the yeast Candida albicans. Microbiological results showed that the compounds possessed a diffuse spectrum of antibacterial activity against these microorganisms. Compound 9 which bears a phenylacetamido moiety at position 5 and a 4-fluorophenyl group at the 2-position of benzoxazole ring was the most active derivative against S. aureus, S. faecalis and P. aeruginosa with a MIC value of 12.5 microg/ml. Compound 11 provided higher potency than the other tested compounds against B. subtilis at a MIC value of 12.5 microg/ml. Compounds 5-22 showed antifungal activity against C. albicans with MIC values between 50 and 12.5 microg/ml.
