(R)-3-[(2R,3S,4S)-3-[(tert-butyldimethylsilanyl)oxy]-5-hydroxy-2,4-dimethylpentanoyl]-4-isopropyl-5,5-diphenyloxazolidin-2-one

(2S,3S,4S,5R)-4-(tert-butyl-dimethyl-silanyloxy)-3,5-dimethyl-6-oxo-tetrahydro-pyran-2-carbaldehyde

(4R,5S)-3-[(3R,4R)-3-(tert-butyldimethylsilanyloxy)-2,4-dimethylpent-4-enoyl]-4-methyl-5-phenyloxazolidin-2-one

[[3-(2R,3R)-4R]-3-(3-(tert-butyldimethylsilyloxy)-2,4-dimethyl-1-oxopent-4-enyl)-4-(phenylmethyl)]-2-oxazolidinone

(3R,4S,5S)-4-[(tert-butyldimethylsilanyl)oxy]-3,5-dimethyltetrahydropyran-2-ol