Environmentally benign decarboxylative <i>N</i>-, <i>O</i>-, and <i>S</i>-acetylations and acylations
作者:Santanu Ghosh、Anisha Purkait、Chandan K. Jana
DOI:10.1039/d0gc03731a
日期:——
An operationally simple and general method for acetylation and acylation of a wide variety of substrates (amines, alcohols, phenols, thiols, and hydrazones) has been reported. Meldrum's acid and its derivatives have been used as an air-stable, non-volatile, cost-effective, and easy to handle acetylating/acylating agent. Easily separable byproducts (CO2 and acetone) allowed the isolation of analytically
[EN] GLYCOSYLATED 3-SUBSTITUTED FLUOROQUINOLONE DERIVATIVES, PREPARATION METHODS THEREOF, AND THEIR USE IN THE TREATMENT OF ANTIMICROBIAL INFECTIONS<br/>[FR] DÉRIVÉS DE FLUOROQUINOLONE 3-SUBSTITUÉS GLYCOSYLÉS, LEURS PROCÉDÉS DE PRÉPARATION ET LEUR UTILISATION DANS LE TRAITEMENT D'INFECTIONS ANTIMICROBIENNES
申请人:THE UNIV OF JORDAN
公开号:WO2020202239A1
公开(公告)日:2020-10-08
The present disclosure relates to 3-substituted fluoroquinolone derivatives, and more particularly to glycosylated 3-substitutred fluoroquinolone derivatives, methods of preparation thereof, and uses thereof for treating microbial infections.
Antibacterial Activity of Enrofloxacin and Ciprofloxacin Derivatives of<i>β</i>-Octaarginine
作者:Nirupam Purkayastha、Stefania Capone、Albert K. Beck、Dieter Seebach、Jennifer Leeds、Katherine Thompson、Heinz E. Moser
DOI:10.1002/cbdv.201400456
日期:2015.2
groups NH and CO2 H of the antibacterial fluoroquinolones ciprofloxacin (→1) and enrofloxacin (→2), respectively, in order to find out whether the activity increases by attachment of the polycationic, cell-penetrating peptide (CPP) moiety. For comparison, simple amides, 3-5, of the two antimicrobial compounds and β(3) -octaarginine amide (βR8 ) were included in the antibacterial susceptibility tests to
Pharmacological Characterization of 7-(4-(Piperazin-1-yl)) Ciprofloxacin Derivatives: Antibacterial Activity, Cellular Accumulation, Susceptibility to Efflux Transporters, and Intracellular Activity
作者:Béatrice Marquez、Vincent Pourcelle、Coralie M. Vallet、Marie-Paule Mingeot-Leclercq、Paul M. Tulkens、Jacqueline Marchand-Bruynaert、Françoise Van Bambeke
DOI:10.1007/s11095-013-1250-x
日期:2014.5
PurposeTo evaluate pharmacological properties (antibacterial activity; accumulation in phagocytic cells; activity against intracellular bacteria; susceptibility to fluoroquinolone efflux transporters) of ciprofloxacin derivatives modified at C-7 of the piperazine ring. MethodsN-acetyl- (1), N-benzoyl- (2), N-ethyl- (3), and N-benzyl- (4) ciprofloxacin were synthesized. MICs against Escherichia coli
Trifluoromethylation of Carbonyl and Unactivated Olefin Derivatives by C(
<i>sp</i>
<sup>
<i>3</i>
</sup>
)−C Bond Cleavage
作者:Fei Cong、Riccardo S. Mega、Jinhong Chen、Craig S. Day、Ruben Martin
DOI:10.1002/anie.202214633
日期:2023.4.3
A Cu-mediated trifluoromethylation of carbonyl-type compounds and unactivatedolefins enabled by visible-light irradiation via σ C(sp3)−C bond-functionalization has been developed. This protocol is characterized by its modularity, mild conditions and wide scope—even in the context of late-stage functionalization, thus offering a complementary approach en route to valuable C(sp3)−CF3 architectures from