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For a long period,chemical modifica-tions of peptides required for structure-acti-vity relationships have been restricted tocoded residues substitution or D to L sub-stitution.The need of non proteolysable
For a long period, chemical modifica-tions of peptides required for structure-acti-vity relationships have been restricted tocoded residues substitution or D to L sub-stitution. The need of non-proteolysable