104973-52-6 AK-Me6 D-Phenylalanine, N-acetyl-, 4-methoxy-1-(2-methyloxiranyl)-4-oxo-2-butenyl ester, (R-(R*,R*-(E)))- Methyl 4-(N-acetylphenylalanyl)oxy-5,6-epoxy-5-methylhex-2-enoate