(3R,4S)-4-[benzyl(tert-butoxycarbonyl)amino]pent-1-en-3-ol

Benzyl-((S)-1-methyl-4-oxo-pentyl)-carbamic acid tert-butyl ester

ethyl (2E,4S)-4-[benzyl(tert-butoxycarbonyl)amino]pent-2-enoate

tert-butyl N-benzyl-N-[(1S,2E)-4-hydroxy-1-methyl-2-butenyl]carbamate

(Z)-(4S,8S)-8-Benzylamino-non-6-en-4-ol