(S)-4-Bromo-3-(tert-butyl-dimethyl-silanyloxy)-pent-4-enal

(S)-4-benzyl-3-((2S,3S)-4-bromo-2-chloro-3-hydroxypent-4-enoyl)oxazolidin-2-one

(S)-4-benzyl-3-((S)-4-bromo-3-hydroxypent-4-enoyl)oxazolidin-2-one

(S)-4-benzyl-3-((S)-4-bromo-3-((tert-butyldimethylsilyl)oxy)pent-4-enoyl)oxazolidin-2-one

(3R,4S,6S)-7-bromo-6-((tert-butyldimethylsilyl)oxy)-3-methylocta-1,7-dien-4-ol