methyl (2S,4E)-2-(benzyloxycarbonylamino)-6-oxohex-4-enoate

methyl (2S,4E)-2-(benzyloxycarbonylamino)-6-hydroxyhex-4-enoate

N-Cbz-HSer-OMe

1,4-Bis((2R,5S)-2,5-dihydro-3,6-dimethoxy-2-isopropyl-5-pyrazinyl)-(E)-but-2-ene

{(E)-(1S,6S)-6-Benzyloxycarbonylamino-1,6-bis-[({3-[(9H-fluoren-9-ylmethoxycarbonyl)-propyl-amino]-propylcarbamoyl}-methyl)-carbamoyl]-hex-3-enyl}-carbamic acid benzyl ester