Results 81 to 90 of about 50,577 (283)

Deprotective Alkylation: A Platform for Alcohol‐to‐Amine Interconversion Using Nonafluoromesitylenesulfonamides

Angewandte Chemie International Edition, EarlyView.
The straightforward conversion of alcohols to tertiary or secondary amines employing Nms‐amides in a single operation is described. The transformation features broad functional group tolerance and high stereospecificity, underscoring its utility in the synthesis of isotope‐labeled pharmaceuticals.
Jakub Brześkiewicz, Kunj Kapur, Boris Maryasin, Nuno Maulide   +3 more
wiley   +1 more source

A Ruthenium(CAAC‐5) Olefin Metathesis Catalyst for Bioconjugation

Angewandte Chemie International Edition, EarlyView.
The aqueous instability of ruthenium catalysts restricts olefin metathesis in biological media. A Ru(CAAC‐5) complex bearing an aniline handle is reported that remains active under biologically relevant conditions and enables bioconjugation to proteins, peptides, and an artificial metalloenzyme, providing a robust platform for olefin metathesis in ...
Damian Alexander Graf, Mikhail Boym, María Álvarez, Tsvetan Kardashliev, Thomas R. Ward   +4 more
wiley   +1 more source

Determination of quinolones and sulfonamides residues in aquatic products and livestock products with enhanced matrix removal-lipid adsorbent by liquid chromatography-tandem mass spectrometry

Shipin yu jixie
ObjectiveTo establish a new method for simultaneous detection of quinolones (QNs) and sulfonamides (SAs) in aquatic products and livestock products.MethodsIn pretreatment, this work compares the effect of extraction solvents on the recoveries and ...
QIN Yu, XUE Feng, YU Junjie, LIU Yang, GONG Heng   +4 more
doaj   +1 more source

AASLD practice guidance on drug, herbal, and dietary supplement–induced liver injury

, 2022
Hepatology, EarlyView.
Robert J. Fontana, Iris Liou, Adrian Reuben, Ayako Suzuki, M. Isabel Fiel, William Lee, Victor Navarro   +6 more
wiley   +1 more source

Design and Synthesis of Dy₂TmSbO₇/BiHoO₃ Heterojunction: The Mechanism and Application for Photocatalytic Degradation of Sulphamethoxypyridazine

Molecules
A novel Z-scheme Dy2TmSbO7/BiHoO3 heterostructure photocatalyst was synthesized with the ultrasound-assisted solvothermal method. The Dy2TmSbO7/BiHoO3 heterojunction photocatalyst (DBHP) reflected wonderful separation efficiency of photogenerated ...
Jingfei Luan, Minghe Ma, Liang Hao, Hengchang Zeng, Anan Liu   +4 more
doaj   +1 more source

Integron profiles and sulfonamide resistance genes in Klebsiella pneumoniae isolated from diabetic patients with urinary tract infection

Journal of Current Biomedical Reports
Klebsiella pneumoniae is an opportunistic pathogen and an important cause of pneumonia, bacteremia and urinary tract infection (UTI). K. pneumoniae infection is historically associated with diabetes.
Mona Ranjkesh, Abazar Pournajaf, Meghdad Bagheri, Mehran Shokri   +3 more
doaj   +1 more source

Modeling the hydrolysis of perfluorinated compounds containing carboxylic and phosphoric acid ester functions, alkyl iodides, and sulfonamide groups [PDF]

, 2009
Temperature dependent rate constants were estimated for the acid- and base-catalyzed and neutral hydrolysis reactions of perfluorinated telomer acrylates (FTAcrs) and phosphate esters (FTPEs), and the SN1 and SN2 hydrolysis reactions of fluorotelomer ...
Sierra Rayne, Kaya Forest
core  

Cu(OTf)2-Catalyzed Asymmetric Friedel-Crafts Alkylation Reaction of Indoles with Arylidene Malonates Using Bis(sulfonamide)-Diamine Ligands

, 2013
Cu(OTf)2-Catalyzed Asymmetric Friedel-Crafts Alkylation Reaction of Indoles with Arylidene Malonates Using Bis(sulfonamide)-Diamine ...
吴凡, 王东平, 万伯顺, 吴静
core  

Crystal structure of potassium [4-amino-5-(benzo[d]thiazol-2-yl)-6-(methylsulfanyl)pyrimidin-2-yl](phenylsulfonyl)azanide dimethylformamide monosolvate hemihydrate

Acta Crystallographica Section E: Crystallographic Communications, 2019
The title compound, K+·C18H14N5O2S3−·C3H7NO·0.5H2O, was obtained in a reaction designed to deliver a neutral 2-pyrimidylbenzothiazole. The anion is deprotonated at the sulfonamide nitrogen. The asymmetric unit of the title compound contains two potassium
Rasha A. Azzam, Galal H. Elgemeie, Rokia R. Osman, Peter G. Jones   +3 more
doaj   +1 more source

Pursing Quinoline-8-Sulfonamide derivatives for the identification of potent NPPs inhibitors: In silico molecular docking, molecular dynamics simulations and density field theory (DFT) studies

Results in Chemistry
Nucleotide pyrophosphatase/phosphodiesterase (NPP) enzymes belong to a broad category of ectonucleotidase enzymes. These NPPs are responsible for hydrolysis of extracellular nucleotides (ATP to AMP) and are therefore important regulators in the ...
Jamshed Iqbal, Talha Islam, Mariya al-Rashida, Abdul Hameed, Taseer Iftikhar, Julie Pelletier, Jean Sévigny, Salman Alrokayan, Maria Maqbool, Khurshid Ayub, Tajamul Hussain   +10 more
doaj   +1 more source