Two nucleopeptides (NPs) were synthesized on the base of delta-ornithine pe
ptides by modification of the alpha-amino ornithine functions with pyrimidy
l-1- and purinyl-9-acetic acids or with pyrimidyl-1- and purinyl-9-alanines
. NPs were prepared on solid polymer bearing photolinker. Conjugates with t
he 16-mer oligonucleotide complementary to the env AUG codon region of the
Friend murine leukemia virus were prepared.