The synthesis of a series of thirty-eight new modified dinucleotides and dinucleotide conjugate analogues of d-5′ApC3′ is described. The inhibitory activity of these compounds toward HIV-1 integrase was examined in enzymatic assays using the natural dinucleotide as a reference. Among the compounds, a perylene-dinucleotide conjugate has shown a two micromolar anti-integrase activity due to the presence