77171-72-3 Cyclo-N(gamma)-dinh-butyryl-leu-enkephalin Enkephalin-leu, cyclo-N(gamma)-diaminobutyryl- Enkephalin-leu, cyclo-N(gamma)-dinh-butyryl- L-Leucine, L-tyrosyl-D-alpha,gamma-diaminobutyrylglycyl-L-phenylalanyl-, cyclic (5-2)-peptide Leu-enkephalin, cyclo-N(gamma)-dinh-butyryl- Leucine-enkephalin, cyclo-N(gamma)-dinh-butyryl- TABGP Tyr-cyclo(-N(gamma)-D-A2-bu-gly-phe-leu-)