Modular construction of quaternary hemiaminal-based inhibitor candidates and their in cellulo assessment with HIV-1 protease
作者:Guillaume Gros、Lorena Martinez、Anna Servat Gimenez、Paula Adler、Philippe Maurin、Roland Wolkowicz、Pierre Falson、Jens Hasserodt
DOI:10.1016/j.bmc.2013.06.018
日期:2013.9
Non-peptidomimetic drug-like protease inhibitors have potential for circumventing drug resistance. We developed a much-improved synthetic route to our previously reported inhibitor candidate displaying an unusual quaternized hemi-aminal. This functional group forms from a linear precursor upon passage into physiological media. Seven variants were prepared and tested in cellulo with our HIV-1 fusion-protein technology that result in an eGFP-based fluorescent readout. Three candidates showed inhibition potency above 20 mu M and toxicity at higher concentrations, making them attractive targets for further refinement. Importantly, our class of original inhibitor candidates is not recognized by two major multidrug resistance pumps, quite in contrast to most clinically applied HIV-1 protease inhibitors. (C) 2013 Elsevier Ltd. All rights reserved.