21762-09-4

Upstream product

• 29067-55-8 (RS)-1-(1-bromoethyl)-3-nitrobenzene 
• 151-50-8 potassium cyanide 
• 344905-79-9 1-(1,1-difluoroprop-1-en-2-yl)-3-nitrobenzene 
• 621-50-1 (3-nitrophenyl)acetonitrile 
• 616-38-6 carbonic acid dimethyl ester 
• 5400-78-2 1-(3-nitrophenyl)ethanol 
• 121-89-1 3-Nitroacetophenone 

Downstream Products

• 21762-10-7 (RS)-2-(3-nitrophenyl)propionic acid 
• 68285-88-1 ethyl 2-(3-aminophenyl)propionate 

Relevant academic research and scientific papers

Rapid and Simple Access to α-(Hetero)arylacetonitriles from Gem-Difluoroalkenes

A scalable cyanation of gem-difluoroalkenes to (hetero)arylacetonitrile derivatives was developed. This strategy features mild reaction conditions, excellent yields, wide substrate scope, and broad functional group tolerance. Significantly, in this reacti

Design, synthesis and biological evaluation of non-covalent AmpC β-lactamases inhibitors

Abstract: Bacterial resistance represents a worldwide emergency threatening the efficacy of all available antibiotics. Among the several resistance mechanisms developed by bacteria, β-lactamase enzymes?(BLs), which are able to inactivate most β-lactam core antibiotics, represent a key target to block, thus prolonging antibiotics half-life. Several approaches aimed at inhibiting β-lactamases have been so far undertaken, mainly involving β-lactam-like or covalent inhibitors. Applying a structure-based de novo design approach, we recently discovered a novel, non-covalent and competitive inhibitor of AmpC β-lactamase:?lead 1. It has a Ki of 1 μM, a ligand efficiency of 0.38 kcal mol?1 and lead-like physical properties. Moreover, it reverts resistance to ceftazidime in bacterial pathogens expressing AmpC and does not up-regulate β-lactamases expression in cell culture. Its features make it a good candidate for chemical optimization: starting from lead 1 crystallographic complex with AmpC, 11 analogs were designed to complement additional AmpC sites, then synthesized and tested against clinically resistant pathogens. While the new inhibitors maintain similar in vitro activity as the starting lead, some of them, in biological assays, extert a higher potency showing improved synergic activity with ceftazidime in resistant clinically isolated strains. Graphical Abstract: [InlineMediaObject not available: see fulltext.].

N-phenylglycinamide CCK antagonists and pharmaceutical compositions containing them

Compounds of formula: STR1 in which R1 represents a hydrogen atom, an alkyl or alkoxycarbonyl radical or a phenyl radical, optionally substituted, R2 represents an alkoxy, optionally substituted cycloalkyloxy, cycloalkylalkyloxy, phenylalkyloxy, polyfluoroalkyloxy or cinnamyloxy radical or a radical --NR5 R6, R3 represents a phenylamino radical in which the phenyl ring is optionally substituted, an optionally substituted phenyl radical or a naphthyl, indolyl or quinolyl radical, R4 represents a substituted phenyl radical, R5 and R6, which may be identical or different, represent a hydrogen atom or an alkyl, optionally substituted phenyl, indanyl, cycloalkylalkyl, cycloalkyl or phenylalkyl radical, or alternatively R5 and R6, together with the nitrogen atom to which they are attached, form a heterocycle, their preparation and medicinal products containing them.