dimethyl (2S,4E,7S)-2,7-bis(benzyloxycarbonylamino)oct-4-en-1,8-dioate

((E)-(1S,6S)-6-Benzyloxycarbonylamino-1,6-bis-{[(3-dimethylamino-propylcarbamoyl)-methyl]-carbamoyl}-hex-3-enyl)-carbamic acid benzyl ester

{(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