D-Phenylalaninamide, N-acetyl-D-a-glutamyl-D-tryptophyl-D-valyl-D-lysyl-D-alanyl-D-phenylalanyl-D -tyrosyl-D-a-aspartyl-D-lysyl-D-phenylalanyl-D-alanyl-D-a-aspartyl-D-lysyl-D- phenylalanyl-D-lysyl-