74518-57-3C=C[C@H]1[C@H](OC2OC(CO)C(O)C(O)C2O)OC=C2C(=O)N3CCS[C@H]3C[C@H]21RMTHFMSBPWQULL-LTDZNUIOSA-N74518-57-3DTXSID70319095OccurrenceA glucosidic sulphur-containing alkaloid, xylostosidine occurs in the water-soluble fraction of the extract of Lonicera xylosteum. It forms colourless needles when crystallized from MeOH and is laevorotatory with a specific rotation of [α]D -289.37° (c 0.56, MeOH). The ultraviolet spectrum in MeOH consists of a single absorption maximum at 238 nm. Acetylation furnishes the tetraacetate which is laevorotatory with a specific rotation of [α]D20D -85.35° (c 0.35, CHCl3).
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