Results 51 to 60 of about 123,258 (356)
Biobased Lactams as Novel Arthropod Repellents
Natural Product Communications, 2014 Enanatiomerically pure 4a S ,7 S ,7a R and 4a S ,7 S ,7a S -nepetalactams and their analogs have been prepared in just two steps from 4a S ,7 S ,7a R and 4a S ,7 S ,7a S -nepetalactones, major components of catnip oil.
Kamlesh R. Chauhan +4 more
doaj +1 more source
Advanced Science, EarlyView.Pharmaceutical diversity acts as an independent driver of antibiotic resistance in soil invertebrates. While bulk soil remains unaffected, the collembolan gut microbiome exhibits significant resistance gene enrichment under complex chemical exposure and diurnal warming.
Yi‐Fei Wang +11 more
wiley +1 more source
Solvent‐Induced Covalent Bond Softening Boosts Battery Voltage
Angewandte Chemie, EarlyView.The strong attractive interaction between the nucleophilic center of the solvent and the electrophilic region of the covalently bonded cathode fragment triggers charge transfer. This results in the electron population in the antibonding orbital of the covalent bond, leading to bond weakening and elongation, and consequently increasing the cathode ...
Yanyan Wang +6 more
wiley +2 more sources
Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2012 A new technique for the elaboration of α-methylene-γ-butyrolactams hydroxymethylated at the β-position has been developed. This new synthetic approach is based upon the preliminary assembly of N protected and γ-carboxylated analogues.
Gwenaëlle Liberge +3 more
doaj
Skeletal metalation of lactams through a carbonyl-to-nickel-exchange logic
Nature Communications, 2023 Classical metalation reactions such as the metal-halogen exchange have had a transformative impact on organic synthesis owing to their broad applicability in building carbon-carbon bonds from carbon-halogen bonds.
Hongyu Zhong +7 more
doaj +1 more source
The Dimerization Interface in VraR is Essential to Induction of the Cell Wall Stress Response in Staphylococcus aureus: A potential Druggable Target [PDF]
, 2019 Background Staphylococcus aureus remains a medical challenge in the treatment of bacterial infections. It has acquired resistance to commonly used antibiotics, and to those considered to be the last weapons in treating staphylococcal infections, such as
Golemi-Kotra, Dasantila +1 more
core +1 more source
Advanced Science, EarlyView.Multidrug‐resistant Vibrio infections are rising rapidly and threaten coastal populations worldwide. This study introduces D‐zp37, a chirality‐engineered antimicrobial peptide with exceptional potency against resistant Vibrio species. D‐zp37 kills planktonic cells, blocks mixed‐species biofilms, disrupts essential bacterial stress responses, and shows ...
Ping Zeng +11 more
wiley +1 more source
Anodic Oxidation of Aliphatic and Aromatic Amides, Bisamides and Related Derivatives
ChemElectroChemThe current comprehensive review covers four main parts, of which some are presented in the form of a personal account. 1. Anodic oxidation of a) N‐alkyl and N,N‐diallyl carbonyl moieties, b) Azacycloalkyl amides and the effect of ring‐size on the ...
Prof. James Y. Becker
doaj +1 more source
Remarkable Iodine-Catalyzed Synthesis of Novel Pyrrole- Bearing N-Polyaromatic β-Lactams
Molecules, 2010 Because of their interesting biological properties various methods for the synthesis of substituted pyrroles are described in the literature. However, synthesis of pyrroles fused with a β-lactam ring has not been reported.
Bimal K. Banik +4 more
doaj +1 more source
Identification of the Extracytoplasmic Function σ Factor σP Regulon in Bacillus thuringiensis
mSphere, 2022 Bacillus thuringiensis and other members of the Bacillus cereus family are resistant to many β-lactams. Resistance is dependent upon the extracytoplasmic function sigma factor σP.
Theresa D. Ho +4 more
doaj +1 more source