Optimization of Novel Indole-2-carboxamide Inhibitors of Neurotropic Alphavirus Replication
摘要:
Neurotropic alphaviruses, which include western equine encephalitis virus (WEEV) and Fort Morgan virus, are mosquito-borne pathogens that infect the central nervous system causing acute and potentially fatal encephalitis. We previously reported a novel series of indole-2-carboxamides as alphavirus replication inhibitors, one of which conferred protection against neuroadapted Sindbis virus infection in mice. We describe here further development of this series, resulting in 10-fold improvement in potency in a WEEV repliton assay and up to 40-fold increases in half-lives in mouse liver microsomes. Using a rhodamine123 uptake assay in MDR1-MDCKII cells, we were able to identify structural modifications that markedly reduce recognition by P-glycoprotein, the key efflux transporter at the blood brain barrier. In a preliminary mouse PK study, we were able to demonstrate that two new analogues could achieve higher and/or longer plasma drug exposures than our previous lead and that one compound achieved measurable drug levels in the brain.
The present invention relates to chemical compounds, methods for their discovery, and their therapeutic use. In particular, the present invention provides compounds as inhibitors of arboviruses.
[EN] ARBOVIRUS INHIBITORS AND USES THEREOF<br/>[FR] INHIBITEURS D'ARBOVIRUS ET LEURS UTILISATIONS
申请人:UNIV MICHIGAN
公开号:WO2012170098A2
公开(公告)日:2012-12-13
The present invention relates to chemical compounds, methods for their discovery, and their therapeutic use. In particular, the present invention provides compounds as inhibitors of arboviruses.