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

(R)-3-Benzyloxy-4-methoxy-butyraldehyde

(2S,3R,5R)-5-Benzyloxy-6-methoxy-2-methyl-3-triethylsilanyloxy-hexanal

(2S,3R,5R)-5-Benzyloxy-1-((S)-4-benzyl-2-thioxo-thiazolidin-3-yl)-3-hydroxy-6-methoxy-2-methyl-hexan-1-one

(2S,3R,5R)-5-Benzyloxy-1-((S)-4-benzyl-2-thioxo-thiazolidin-3-yl)-6-methoxy-2-methyl-3-triethylsilanyloxy-hexan-1-one