(2S,3R,4R,5R,6S)-5-(tert-Butyl-dimethyl-silanyloxy)-3-hydroxy-2,4,6-trimethyl-octanal

(2S,3R,4R,5R,6S)-5-(tert-Butyl-dimethyl-silanyloxy)-3-hydroxy-2,4,6-trimethyl-octanoic acid methoxy-methyl-amide

(2R,3S,4R,5R,6S)-5-[(tert-butyl)dimethylsilyloxy]-3-hydroxy-2,4,6-trimethyloctanoic acid