4-Hydroxycinnamoyl(1)-leu-enkephalin 4-Hydroxycinnamoyl-glycyl-glycyl-phenylalanyl-leucine 88492-42-6 Enkephalin-leu, 4-hydroxycinnamoyl(1)- L-Leucine, N-(N-(N-(N-(3-(4-hydroxyphenyl)-1-oxo-2-propenyl)glycyl)glycyl)-L-phenylalanyl)-, (E)- Leu-enkephalin, 4-hydroxycinnamoyl(1)- Leu-enkephalin-ohcin Leucine-enkephalin, 4-hydroxycinnamoyl(1)-