Lead Optimization Studies on FimH Antagonists: Discovery of Potent and Orally Bioavailable Ortho-Substituted Biphenyl Mannosides
摘要:
Herein, we describe the X-ray structure-based design and optimization of biaryl mannoside FimH inhibitors. Diverse modifications to the biaryl ring to improve druglike physical and pharmacokinetic properties of mannosides were assessed for FimH binding affinity based on their effects on hemagglutination and biofilm formation along with direct FimH binding assays. Substitution on the mannoside phenyl ring ortho to the glycosidic bond results in large potency enhancements several-fold higher than those of corresponding unsubstituted matched pairs and can be rationalized from increased hydrophobic interactions with the FimH hydrophobic ridge (Ile13) or "tyrosine gate" (Tyr137 and Tyr48) also lined by Ile52. The lead mannosides have increased metabolic stability and oral bioavailability as determined from in vitro PAMPA predictive model of cellular permeability and in vivo pharmacokinetic studies in mice, thereby representing advanced preclinical candidates with promising potential as novel therapeutics for the clinical treatment and prevention of recurring urinary tract infections.
[EN] C-GLYCOSIDE COMPOUNDS USEFUL FOR TREATING DISEASE<br/>[FR] COMPOSÉS C-GLYCOSIDES UTILES POUR TRAITER UNE MALADIE
申请人:FIMBRION THERAPEUTICS INC
公开号:WO2017156508A1
公开(公告)日:2017-09-14
The present invention relates to mannoside derivative compounds useful as inhibitors of FimH and methods for the treatment or prevention of urinary tract infection.