(2S)-[5-(tert-butyldiphenylsilyloxy)-2-ethylpentyl]-α-diazo-α-(methoxycarbonyl)acetate

(4R,5S)-3[(2R)-2-((1R*)-1-hydroxyethyl)-1-oxo-4-pentenyl]-4-methyl-5-phenyl-2-oxazolidinone

(4R,5S)-3-[(2R)-2((1R*)-1-(phenoxythiocarbonyloxy)ethyl)-1-oxo-4-pentenyl]-4-methyl-5-phenyl-2-oxazolidinone

(S)-2-ethylpent-4-enoic acid

(4R,5S)‐4‐methyl‐3‐pent‐4‐enoyl‐5‐phenyloxazolidin‐2‐one