Manitol and sorbitol

More recently, Zhao and James have prepared 6,6 -cis-substituted BINOL boronic acids, which display improved enantioselectivity toward the sugar alcohols o-sorbitol and D-manitol. ... 

Even though monosaccharides exist largely as cyclic hemiacetals or hemiketals, rapid equilibrium, with trace quantities of carbonyl-containing compounds, means that discussion of the reactions of most sugars must consider both the acyclic and the cyclic structures. Common monosaccharides can be reduced to alkanepolyols (D-manitol, sorbitol) or oxidized to aldaric, aldonic, or uronic acids. 

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