1,4-anhydro-2-O-methanesulfonyl-3,5-O-(1,1,3,3-tetraisopropyl-1,3-disiloxanediyl)-D-ribitol

5-((2S,3aS,4S,6aS)-4-Formyl-tetrahydro-furo[3,4-d][1,3]dioxol-2-yl)-pentanoic acid methyl ester