74135-04-9 Deproceptin L-Prolinamide, L-tyrosyl-L-prolyl-L-phenylalanyl- L-Tyrosyl-L-prolyl-L-phenylalanyl-L-prolinamide Morphiceptin NH(4)-Tyr-pro-phe-pro-conh(2) Tyr-pro-phe-D-pro-NH2 Tyr-pro-phe-pro amide Tyrosyl-prolyl-phenylalanyl-D-prolinamide beta-Casomorphine(1-4) amide