| Identification | Back Directory | [Name]
9α-Vinyl-8β-(β-D-glucopyranosyloxy)-2,3,9,9aβ,10,10aβ-hexahydro-5H,8H-pyrano[4,3-d]thiazolo[3,2-a]pyridin-5-one | [CAS]
74518-57-3 |
| Chemical Properties | Back Directory | [Occurrence]
A 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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