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The non-nucleoside fragments of the modified DNA strand, containing N-[6-(9-antracenylcarbomoyl)hexanoyl]-3-amino-1,2-propandiol [nAnt, (A)], N-[6-(5(6)-fluoresceinylcarbomoyl)hexanoyl]-3-amino-1,2-propandiol [nFlu, (B)] or cholesterol residue [Chol, (C)].
