Methyl 2‐O‐β‐l‐fucopyranosyl α‐d‐glucopyranoside monohydrate: a synchrotron study

The structure of the title compound, C₁₃H₂₄O₁₀·H₂O, is stabilized by hydrogen bonds situated adjacent to the glycoside linkage. A direct intramolecular hydrogen bond is present between the fucopyranosyl ring O atom and a glucopyranoside OH group, and a bridging water molecule mediates a hydrogen‐bond‐based interaction from a fucopyranosyl OH group to the methoxy O atom. The conformation of the disaccharide is described by the glycosidic torsion angles ?_H = ?41° and ψ_H = ?2°.