159086-02-9 L-Phenylalanine, N-((4E)-5-(2-furanyl)-3-oxo-4-pentenyl)-, methyl ester L-Phenylalanine, N-(5-(2-furanyl)-3-oxo-4-pentenyl)-, methyl ester, (E)- N-((4E)-5-(2-Furanyl)-3-oxo-4-pentenyl)-L-phenylalanine methyl ester