Results 61 to 70 of about 10,637 (203)

Catalyst‐Free Mass Polymerization and Characterization of Bio‐Polyhydroxhyurethanes Based on Resorcinol Bis(Cyclocarbonate)

Macromolecular Materials and Engineering, EarlyView.
Non‐isocyanate polyhydroxyurethanes (PHUs) were synthesized from resorcinol bis(cyclocarbonate) and eco‐friendly diamines under mild, catalyst‐free conditions. The resulting polymers were extensively characterized for their structural, thermal, and mechanical properties, as well as processability and adhesion performance.
Federico Olivieri, Noemi Faggio, Giovanni Dal Poggetto, Chiara Santillo, Roberto Avolio, Rachele Castaldo, Mariacristina Cocca, Maria Emanuela Errico, Marino Lavorgna, Gennaro Gentile   +9 more
wiley   +1 more source

Evolution of Antibiotic Resistance of Coagulase-Negative Staphylococci Isolated from Healthy Turkeys in Egypt: First Report of Linezolid Resistance [PDF]

, 2019
Coagulase-negative staphylococci (CoNS) are gaining much attention as causative agents of serious nosocomial infections in humans. This study aimed to determine the prevalence and phenotypic antimicrobial resistance of CoNS as well as the presence of ...
Awad, Omnia, El-Adawy, Hosny, Hafez, Hafez M., Hotzel, Helmut, Moawad, Amira A., Neubauer, Heinrich, Roesler, Uwe, Tomaso, Herbert   +7 more
core   +1 more source

Oxazolidinone polycyclitols. Stereospecific synthesis of novel aminocarbasugars with oxazolidinone ring

Tetrahedron, 2012
Abstract Two new oxazolidinone polycyclitols, 4,5,7,8,9-pentahydroxy-3-tosyldecahydronaphtho [2,1-d]oxazol-2(9bH)-one and 4,5,6,7,8-pentahydroxy-3-tosyldecahydronaphtho [2,1-d]oxazol-2(9bH)-one were synthesized starting from p-benzoquinone. An endo selective Diels–Alder cycloaddition between p-benzoquinone and 1-acetoxybutadiene followed by ...
Kelebekli, Latif, Balci, Neslihan, Sahin, Ertan   +2 more
openaire   +3 more sources

Reduction‐Controlled Tunable Synthesis of Covellite (CuS) Nanoparticles from Water‐Soluble Single‐Source Precursors

Small, EarlyView.
Amino acid‐derived Cu(II)‐dithiocarbamates were synthesized as water‐soluble single‐source precursors for low‐temperature hydrothermal decomposition toward covellite (CuS) nanoparticles. Their decomposition followed a reduction‐mediated pathway via Cu(I)‐dithiocarbamate intermediates, with the reduction step being rate‐limiting and readily tunable ...
Xiang Xu, Siqiao Huang, Desmond A. Koomson, Tannith‐Jade Cole, Yuanyang Xie, Jagodish C. Sarker, David Pugh, Cécile A. Dreiss, Graeme Hogarth   +8 more
wiley   +1 more source

Silica sulfuric acid: a versatile and reusable heterogeneous catalyst for the synthesis of N-acyl carbamates and oxazolidinones under solvent-free conditions

Bulletin of the Chemical Society of Ethiopia, 2011
Silica sulfuric acid catalyzes efficiently the reaction of carbamates and oxazolidinones with anhydrides under solvent-free conditions. All the reactions were done at room temperature and the N-acyl carbamates and oxazolidinones were obtained with high ...
Liqiang Wu, Xiaojuan Yang, Fulin Yan
doaj  

Antimicrobial activity of linezolid against Gram-positive cocci isolated in Brazil

Brazilian Journal of Infectious Diseases
The new oxazolidinone linezolid and other antimicrobial agents used to treat Gram-positive infections were tested against 1,585 Gram-positive cocci; 1,260 staphylococci and enterococci isolates from patients hospitalized in Brazilian hospitals, and 325 S.
Helio S. Sader, Ana C. Gales, Ronald N. Jones   +2 more
doaj   +1 more source

Microwave‐Accelerated Efficient Synthesis of N‐Fluorenylmethoxycarbonyl/tbutoxycarbonyl/benzyloxycarbonyl‐5‐oxazolid inones. [PDF]

, 2003
The synthesis of N-protected 5-oxazolidinones using amino acids, paraformaldehyde and p-toluene sulfonic acid in a minimum amount of toluene accelerated by microwave irradiation for 3 min in high yield is ...
Kantharaju, ., Subramanyam, J., Sureshbabu, V.V., Tantry, .   +3 more
core   +1 more source

Analysis of two pheromone-responsive conjugative multiresistance plasmids carrying the novel mobile optrA locus from Enterococcus faecalis [PDF]

, 2019
Background: The acquired optrA gene, which encodes a ribosomal protection protein of the ABC-F family, can confer cross-resistance to linezolid and florfenicol, posing a serious therapeutic challenge to both human and veterinary medicine.
Chen, Yu-Xia, Du, Xiang-Dang, Li, Dexi, Ouyang, Wuqing, Schwarz, Stefan, Shan, Xinxin, Shang, Yanhong, Zhang, Su-Mei   +7 more
core   +1 more source

A Critical Review of Oxazolidinones: An Alternative or Replacement for Glycopeptides and Streptogramins?

Canadian Journal of Infectious Diseases, 2001
OBJECTIVE: To review the available data on the oxazolidinones linezolid and eperezolid.
George G Zhanel, Coleen Schroeder, Lavern Vercaigne, Alfred S Gin, John Embil, Daryl J Hoban   +5 more
doaj   +1 more source

An economic analysis of a pneumococcal vaccine programme in people aged over 64 years in a developed country setting. [PDF]

, 2005
BACKGROUND: Polysaccharide pneumococcal vaccination for older adults is being introduced in developed country settings. Evidence of protection by this vaccine against pneumococcal pneumonia, or confirmation that illness and death from bacteraemia are ...
Cutts, Felicity T, Hall, Andrew J, Mangtani, Punam, Roberts, Jennifer A   +3 more
core   +1 more source