Taxonomic group: plant / Streptophyta
(Phylum: Streptophyta)
Organ / tissue: flower
The structure was elucidated in this paperPublication DOI: 10.1016/0031-9422(93)85253-NJournal NLM ID: 0151434Publisher: Elsevier
Institutions: Laboratoire de Chimie Physique and UFR de Pharmacie, Université de Limoges, Limoges Cedex, France, Laboratoire de Pharmacognosie, UFR de Pharmacie, Université de Limoges, Limoges Cedex, France, Laboratoire de Pharmacognosie, UFR de Pharmacie, Université Joseph Fourier-Grenoble I, Domaine de la Merci, Tronche Cédex, France
New quercetin quercetin 3-[2,3,4-triacetyl-a-L-arabinosyl(1→6)-b-D-glucoside] has been isolated together with the dihydroflavonol glucoside callunin and quercetin 3-a-L-arabinoside. Structural elucidation of these natural products was achieved mainly by 1H and 13C NMR spectroscopy. Furthermore, 1H NMR assignments for H-2 and H-3 of the dihydroflavonol glucoside were interchanged.
5, 7, 3, 8, Calluna vulgaris, Ericaceae, flowers, 4′-tetrahydroxyflavonol, 4′-tetrahydroxydihydroflavonol 8-glucoside, callunin, quercetin 3-[2, 4-triacetyl-a-L-arabinosyl(1->6)-b-D-glucoside], acylated flavonoid glycosides
Structure type: oligomer
Location inside paper: 4
Compound class: flavonol glycoside
Methods: gel filtration, 13C NMR, 1H NMR, TLC, HPLC
NCBI Taxonomy refs (TaxIDs): 13385Reference(s) to other database(s): CCSD:
38728, CBank-STR:524
Show glycosyltransferases
NMR conditions: in DMSO-d6
[as TSV]
13C NMR data:
Linkage Residue C1 C2 C3 C4 C5
3 aLArap 101.4 71.6 70.7 66.0 64.2
xXQuercetin
1H NMR data: present in publication
|
13C NMR data:
| Linkage | Residue | C1 | C2 | C3 | C4 | C5 |
|---|
| 3 | aLArap | 101.4 | 71.6 | 70.7 | 66.0 | 64.2 |
| | xXQuercetin | |
|
There is only one chemically distinct structure:
Found 
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