THE SYNTHESIS AND OPIATE ACTIVITY OF HUMAN β-ENDORPHIN ANALOGS

Abstract
Four analogs of human .beta.-endorphin were synthesized and their opiate activities were determined in guinea pig. One of the analogs, [27-phenylalanine, 32-glycine]-.beta.h-endorphin, was shown to possess an analgesic potency greater than that of the natural peptide in mice.