(3R,4S,5R)-5-Benzyloxy-3-(tert-butyl-dimethyl-silanyloxy)-4-methyl-hexanal

(R)-3-((2S,3R)-3-Benzyloxy-2-methyl-butyryl)-4-isopropyl-oxazolidin-2-one

(S)-3-[2-(3,4-Dimethoxy-benzyloxy)-acetyl]-4-isopropyl-oxazolidin-2-one

(S)-3-[(2S,3R,5R,6S,7R)-7-Benzyloxy-5-(tert-butyl-dimethyl-silanyloxy)-2-(3,4-dimethoxy-benzyloxy)-3-hydroxy-6-methyl-octanoyl]-4-isopropyl-oxazolidin-2-one

(2S,5R,6S,7R)-7-Benzyloxy-5-(tert-butyl-dimethyl-silanyloxy)-2-(3,4-dimethoxy-benzyloxy)-1-((S)-4-isopropyl-2-oxo-oxazolidin-3-yl)-6-methyl-octane-1,3-dione