Discovery of N-aryl-naphthylamines as in vitro inhibitors of the interaction between HIV integrase and the cofactor LEDGF/p75

A series of N-aryl-naphthylamines, exemplified by the structures 11-16, were chosen for an in-house library screening to assay their ability to disrupt the interaction between the LEDGF cofactor and the HIV integrase. Structure modification led also to design and synthesize new compounds 17a-f. Compounds 11e,h,k,n, 13b, and 14 showed good activity in AlphaScreen assay. The most active compound 11e (IC50 Combining double low line 2.5 μM) was selected for molecular modeling studies and showed a binding mode similar to the one of the known LEDGIN 8