157878-99-4 Enkephalinamide, cyclo(dab(2)-D-glu(3))leucine Enkephalinamide-leu, cyclo(alpha,gamma-dibutyric acid(2)-glutamyl(3))- LECDG Leu-enkephalinamide, cyclo(dibutyric acid(2)-glutamyl(3))- Leucine enkephalinamide, cyclo(dab(2)-glu(3))-