The design, synthesis, and biological evaluation of novel substituted purines as HIV-1 Tat–TAR inhibitors
2007
Abstract A series of novel substituted purines containing a side chain with a terminal amino or guanidyl group were designed and synthesized as HIV-1 Tat–TAR inhibitors. All the compounds could effectively block the TAR transactivation in human 293T cells with the CAT expression percentage ranging from 34.4% to 65.7% and showed high antiviral effects with low cytotoxicities in inhibiting the formation of SIV-induced syncytium in CEM174 cells. Molecular modeling studies by Auto-dock process suggest that the compounds bind to TAR RNA in two different modes.
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