(4S)-4-benzyl-3-[(2R)-2-((1R,2R)-2-benzyloxy-1-ethyl-pent-4-enyloxy)-pent-4-enoyl]-oxazolidin-2-one

(4R)-4-benzyl-3-[(2S,4E)-6-benzyloxy-2-((1R,2R)-2-benzyloxy-1-ethyl-pent-4-enyloxy)-hex-4-enoyl]-oxazolidin-2-one

(1S,2S,4E)-acetic acid 1-allyl-2-((1R,2R)-1-ethyl-2-hydroxy-pent-4-enyloxy)-6-hydroxy-hex-4-enyl ester