1-phenyl-carbonyloxy-3-tetrahydro-2H-2-pyranyloxy-5-(tert-butyl-dimethylsilyloxy)-(1R,3R,5R)-cyclohexane

(3R,5S)-3-O-(tert-butyldimethylsilyl)-6-(para-tolylsulfonyl)-3,5,6-trihydroxyhexanoic acid δ-lactone

(3R,5S)-3-O-(tert-butyldimethylsilyl)-3,5,6-trihydroxyhexanoic acid δ-lactone

(3R,5S)-3-hydroxy-5-(tert-butyldimethylsilyloxy)cyclohexan-1-one

(4S,6R)-4-(tert-butyldimethylsilyloxy)-6-(hydroxymethyl)tetrahydropyran-2-one