[(4S,5S)-2,2-dimethyl-5-({[(4-methylbenzene)sulfonyl]oxy}methyl)-1,3-dioxolan-4-yl]methyl 4-methylbenzene-1-sulfonate

(4s,5s)-2,2-dimethyl-4,5-bis[(4-toluenesulfonyloxy)methyl]-1,3-dioxolane ; (4s-trans)-2,2-dimethyl-4,5-bis[(4-methylphenylsulfonyloxy)methyl]-1,3-dioxolane ; (-)-1,4-di-o-tosyl-2,3-o-isopropylidene-l-threitol ; (-)-1,4-di-o-tosyl-2,3-o-isopropylidenethreitol ; 1,3-dioxolane-4,5-dimethanol, 2,2-dimethyl-, bis(4-methylbenzenesulfonate),(4s-trans)- ; 1,4-di-o-tosyl-2,3-o-isopropylidene-l-th reitol,97% ; (-)-2,3-o-isopropylidene-l-threitol 1,4-ditosylate ; (s,s)-(-)-2,3-o-isopropylidenethreitol 1,4-ditosylate ; (-)-2,3-isopropylidene-l-threitol 1,4-ditosylate ; 1,4-di-o-tosyl-2,3-o-isopropylidene-l-threitol ; (2s,3s)-(-)-2,3-o-isopropylidene-1,4-di-o-tosyl-l-threitol ; (s,s)-(-)-1,4-di-o-tosyl-2,3-o-isopropylidene-l-threitol ; (-)-1,4-ditosyl-2,3,o-isopropylidene-l-threitol ; (-)-2,3-o-isopropylidene-1,4-di-o-tosyl-l-threitol ; 2,3-isopropylidene-l-threitol 1,4-ditosylate ; 4-methylbenzenesulfonic acid[(4s,5s)-2,2-dimethyl-1,3-dioxolane-4,5-diyl]bis(methylene) ester ; (s,s)-(-)-2,3-isopropylidene-l-treitol 1,4-tosylate ; 1,3-dioxolane-4,5-dimethanol,2,2-dimethyl-, bis(4-methylbenzenesulfonate), (4s,5s)- (9ci)