Solution syntheses of azapeptide pentamers 2, 3, and 4 were accomplish
ed. The binding affinity of these azapeptides and azatide 1 were exami
ned in the context of monoclonal antibody 3-E7 known to strongly bind
the [Leu(5)]enkephalin sequence. (C) 1997 Elsevier Science Ltd. All ri
ghts reserved.