3-N-Me-Phe-morphiceptin 83397-56-2 D-Prolinamide, L-tyrosyl-L-prolyl-N-methyl-L-phenylalanyl- L-Tyrosyl-L-prolyl-N-methyl-L-phenylalanyl-D-prolinamide Morphiceptin, N-Me-phe(3)- Morphiceptin, N-methylphenylalanine(3)- PL 017 PL 17 PLO17 Tyr-pro-N-mephe-pro-NH2 Tyrosyl-prolyl-N-methylphenlalanyl-prolinamide