[D-Ala2,Met5]-Enkephalinamide

D.H. Coy, A.J. Kastin, A.V. Schally, O. Morin, N.G. Caron, F. Labrie, J.M. Walker, R. Fertel, G.G. Berntson, and C.A. Sandman, Biochem. Biophys. Res. Commun., 73, 632 (1976). (Original; Chem. Synthesis)

C.B. Pert, A. Pert, J.-K. Chang, and B.T.W. Fong, Science, 194, 330 (1976). (Original)