Taxonomic group: plant / Streptophyta
(Phylum: Streptophyta)
Organ / tissue: whole plant
The structure was elucidated in this paperNCBI PubMed ID: 11523550Publication DOI: 10.1080/10286029908039878Journal NLM ID: 100888334Publisher: Harwood Academic Publishers; London: Informa Healthcare
Correspondence: Yu SC <shichunyu
hotmail.com>
Institutions: Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Dongbei Wang Haidian District, Beijing, 100094, China
A new flavonoid glycosides, 5,7-dihydroxy-4'-methoxyflavone-7-O-[6-O-(4-O-acetyl-α-L-rhamnosyl)-3-O-β-D-glucosyl]-6-O-acetyl-β-D-glucoside and three known flavonoid glycosides, 5,7-dihydroxy-4'-methoxyflavone-7-O-[6-O-(4-O-acetyl-α-L-rhamnosyl)]-β-D-glucoside, 3,5,7,4'-tetrahydroxyflavonol-3-O-β-D-glucoside and 5,7-dihydroxy-4'-methoxyflavone-7-O-(6-O-α-L-rhamnosyl)-β-D-glucoside were isolated from the whole plant of Thalictrum przewalskii. Their structures were determined on the basis of spectroscopic evidences.
5, flavonoid glycoside, Thalictrum, Thalictrum przewalskii, 7-dihydroxy-4′-methoxyflavone-7-O-[6-O-(4-O-acetyl-α-L-rhamnosyl)-3-O-β-D-glucosyl]-6-O-acetyl-β-D-glucoside
Structure type: oligomer
Location inside paper: compound 3, p. 305 (compound 3)
Trivial name: astragalin
Compound class: glycoside, flavonoid glycoside, flavonol glycoside
Contained glycoepitopes: IEDB_142488,IEDB_146664,IEDB_983931,SB_192
Methods: 13C NMR, 1H NMR, IR, UV, EI-MS, HMBC, MALDI-TOF HRMS
Comments, role: NMR temperature was not specified, structure of compound 3 was elucidated with help of comparative spectral data, see ref. [3]
Related record ID(s): 62515, 62516, 62518
NCBI Taxonomy refs (TaxIDs): 1277786Reference(s) to other database(s): CCSD:
34076, CBank-STR:4070
Show glycosyltransferases
NMR conditions: in DMSO-d6
[as TSV]
13C NMR data:
Linkage Residue C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16
3 bDGlcp 100.9 74.1 76.4 69.9 77.4 60.8
xXKaempferol - 156.2 133.2 177.4 156.3 98.6 164.1 93.6 161.2 104.0 120.9 130.8 115.0 159.8 115.0 130.8
1H NMR data:
Linkage Residue H1 H2 H3 H4 H5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
3 bDGlcp 5.43 ? ? ? ? ?
xXKaempferol - - - - - 6.20 - 6.42 - - - 8.02 6.88 - 6.88 8.02
1H/13C HSQC data:
Linkage Residue C1/H1 C2/H2 C3/H3 C4/H4 C5/H5 C6/H6 C7/H7 C8/H8 C9/H9 C10/H10 C11/H11 C12/H12 C13/H13 C14/H14 C15/H15 C16/H16
3 bDGlcp 100.9/5.43 74.1/? 76.4/? 69.9/? 77.4/? 60.8/?
xXKaempferol 98.6/6.20 93.6/6.42 130.8/8.02 115.0/6.88 115.0/6.88 130.8/8.02
1H NMR data:
| Linkage | Residue | H1 | H2 | H3 | H4 | H5 | H6 | H7 | H8 | H9 | H10 | H11 | H12 | H13 | H14 | H15 | H16 |
|---|
| 3 | bDGlcp | 5.43 | ? | ? | ? | ? | ? | |
| | xXKaempferol |
|
|
|
|
| 6.20 |
| 6.42 |
|
|
| 8.02 | 6.88 |
| 6.88 | 8.02 |
|
13C NMR data:
| Linkage | Residue | C1 | C2 | C3 | C4 | C5 | C6 | C7 | C8 | C9 | C10 | C11 | C12 | C13 | C14 | C15 | C16 |
|---|
| 3 | bDGlcp | 100.9 | 74.1 | 76.4 | 69.9 | 77.4 | 60.8 | |
| | xXKaempferol |
| 156.2 | 133.2 | 177.4 | 156.3 | 98.6 | 164.1 | 93.6 | 161.2 | 104.0 | 120.9 | 130.8 | 115.0 | 159.8 | 115.0 | 130.8 |
|
The spectrum also has 1 signal at unknown position (not plotted). |
There is only one chemically distinct structure:
Found 
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