PF-3450074(PF-74)是一种特异性抑制HIV-1衣壳蛋白(HIV-1 CA)的化合物,对多种HIV分离株表现出广谱抑制作用,并显示出亚微摩尔级别的效价(EC50=8-640 nM)。它在HIV-1感染的早期阶段起作用,通过与CPSF6和NUP153结合来竞争性地抑制病毒复制,并阻断病毒生命周期中的脱膜、组装和逆转录步骤。
CPSF6:核宿主因子裂解和聚腺苷酸特异性因子 6;NUP153:核孔蛋白 153。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (S)-tert-butyl (1-(methyl(phenyl)amino)-1-oxo-3-phenylpropan-2-yl)carbamate | —— | C21H26N2O3 | 354.449 |
Despite the availability of >30 effective drugs for managing HIV-1 infection, no current therapy is curative, and long-term management is challenging owing to the emergence and spread of drug-resistant mutants. Identification of drugs against novel HIV-1 targets would expand the current treatment options and help to control resistance. The highly conserved HIV-1 capsid protein represents an attractive target because of its multiple roles in replication of the virus. However, the low antiviral potencies of the reported HIV-1 capsid–targeting inhibitors render them unattractive for therapeutic development. To facilitate the identification of more-potent HIV-1 capsid inhibitors, we developed a scintillation proximity assay to screen for small molecules that target a biologically active and specific intersubunit interface in the HIV-1 capsid. The assay, which is based on competitive displacement of a known capsid-binding small-molecule inhibitor, exhibited a signal-to-noise ratio of >9 and a Z factor of >0.8. In a pilot screen of a chemical library containing 2,400 druglike compounds, we obtained a hit rate of 1.8%. This assay has properties that are suitable for screening large compound libraries to identify novel HIV-1 capsid ligands with antiviral activity.