Synthesis and characterization of ruthenium(II)-oligopyridine-peptide conjugates. Interactions of the diasteromeres Δ- and Λ-[Ru(bpy)2(4-COY-4′-Mebpy)]Cl2 (Y = Gly-Lys1-Lys2CONH2, Lys1-Gly-Lys2CONH2, Lys1-Lys2-GlyCONH2) with the oligonucleotide d(5â

Diastereomeric complexes of the general formulae Λ- and Δ-[Ru(bpy)2(4-COY-4′-Mebpy)]Cl2 where Y = Gly-Lys1-Lys2CONH2, Lys1-Gly-Lys2CONH2, Lys1-Lys2-GlyCONH2, were synthesized and characterized. The ability of these compounds to bind to the oligonucleotide duplex d(5′-CGCGAATTCGCG-3′) was studied with NMR techniques.