(1R,2R,3S,4S)-4-(tert-butyldiphenylsilanyloxymethyl)-3,4-O-isopropylidenedioxy-2-methoxycyclohexan-1-ol

(3S,4S,5S,6R)-5-Methoxy-6-triethylsilanyloxy-1-oxa-spiro[2.5]octan-4-ol

(1S,2S,3R,4R)-1-hydroxymethyl-4-triethylsilyloxy-3-methoxy-1-cyclohexane-1,2-diol