[EN] ARYLHYDRAZIDES CONTAINING A 2-PYRIDONE MOIETY AS SELECTIVE ANTIBACTERIAL AGENTS<br/>[FR] ARYLHYDRAZIDES CONTENANT UNE FRACTION 2-PYRIDONE EN TANT QU'AGENTS ANTIBACTÉRIENS SÉLECTIFS
申请人:FERRER INT
公开号:WO2016016291A1
公开(公告)日:2016-02-04
The present invention belongs to the field of antibacterial agents, more specifically to antibacterials for treating Acinetobacter baumannii infections. The invention provides arylhydrazides containing a 2-pyridone moiety, according to formula (I), which show selective antibacterial activity against A. baumannii. The invention also relates to their use as medicaments and specifically as antibacterials for the treatment of A. baumannii infections, as well as to a process for their preparation and to pharmaceutical compositions containing them.
The stability constants of metal complexes for several pyridone carboxylic acid drugs (ofloxacin, norfloxacin and lomefloxacin) were determined by potentiometry and spectrophotometry. The values of aluminum complexes, magnesium complexes and calcium complexes were CaZn). The stability constants of metal complexes for several pyridone carboxylic acids synthesized were also determined and compared with those for pyridone carboxylic adic drugs. The stability constants of these compounds gradually increased with an increasing pKa value of the carboxyl group of pyridone carboxylic acid. In the case of aluminum complexes, the complexes Al(OH)L and Al(OH)2L were formed under weak acidic conditions and the dissociation constants for the hydrolysis of the aluminum complexes were determined. The participation of the carboxyl group and the carbonyl group in the chelating reaction was confirmed by the measurement of carbon-13 nuclear magnetic resonance of the aluminum complex and the magnesium complex. These results suggest that when pyridone carboxylic acids are administered with metallic antacid containing aluminum hydroxide and magnesium oxide, aluminum complexes AIL, Al(OH)L or Al(OH)2L are formed and the adsorption of the drugs in the intestines is reduced.
[EN] ISOINDOLINONE DERIVATIVES AS IRAK4 MODULATORS<br/>[FR] DÉRIVÉS D'ISOINDOLINONE UTILISÉS EN TANT QUE MODULATEURS D'IRAK4
申请人:HOFFMANN LA ROCHE
公开号:WO2018234342A1
公开(公告)日:2018-12-27
Compounds of Formula (0), and stereoisomers and pharmaceutically acceptable salts thereof, as well as methods of use as Interleukin-1 Receptor Associated Kinase (IRAK4) inhibitors are described herein.
Compounds of Formula 0, and stereoisomers and pharmaceutically acceptable salts thereof, as well as methods of use as Interleukin-1 Receptor Associated Kinase (IRAK4) inhibitors are described herein.