Optimization of Pyrrolamide Topoisomerase II Inhibitors Toward Identification of an Antibacterial Clinical Candidate (AZD5099)
摘要:
AZD5099 (compound 63) is an antibacterial agent that entered phase 1 clinical trials targeting infections caused by Gram-positive and fastidious Gram-negative bacteria. It was derived from previously reported pyrrolamide antibacterials and a fragment-based approach targeting the ATP binding site of bacterial type II topoisomerases. The program described herein varied a 3-piperidine substituent and incorporated 4-thiazole substituents that form a seven-membered ring intramolecular hydrogen bond with a 5-position carboxylic acid. Improved antibacterial activity and lower in vivo clearances were achieved. The lower clearances were attributed, in part, to reduced recognition by the multidrug resistant transporter Mrp2. Compound 63 showed notable efficacy in a mouse neutropenic Staphylococcus aureus infection model. Resistance frequency versus the drug was low, and reports of clinical resistance due to alteration of the target are few. Hence, 63 could offer a novel treatment for serious issues of resistance to currently used antibacterials.
[EN] ANTIBACTERIAL PIPERIDINE DERIVATIVES<br/>[FR] COMPOSÉS ANTIBACTÉRIENS DÉRIVÉS DE PIPÉRIDINE
申请人:ASTRAZENECA AB
公开号:WO2006087543A1
公开(公告)日:2006-08-24
(EN) Compounds of formula (I) and their pharmaceutically acceptable salts are described: Formula (I). Processes for their preparation, pharmaceutical compositions containing them, their use as medicaments and their use in the treatment of bacterial infections are also described.(FR) La présente invention décrit des composés de formule (I) ainsi que leurs sels de qualité pharmaceutique : Formule (I). La présente invention décrit en outre des procédés de synthèse desdits composés, des préparations pharmaceutiques les contenant, leur emploi en tant que médicaments et leur emploi dans le traitement d'infections bactériennes.
Compounds of formula (I) and their pharmaceutically acceptable salts are described. Processes for their preparation, pharmaceutical compositions containing them, their use as medicaments and their use in the treatment of bacterial infections are also described.
Compounds of formula (I) and their pharmaceutically acceptable salts are described. Processes for their preparation, pharmaceutical compositions containing them, their use in the treatment of bacterial infections are also described.