Langbahn Team – Weltmeisterschaft

Syringetin

Syringetin
Chemical structure of syringetin
Names
IUPAC name
3,4′,5,7-Tetrahydroxy-3′,5′-dimethoxyflavone
Systematic IUPAC name
3,5,7-Trihydroxy-2-(4-hydroxy-3,5-dimethoxyphenyl)-4H-1-benzopyran-4-one
Other names
3′,5′-O-Dimethylmyricetin
3′,5′-Dimethoxy-3,5,7,4′-tetrahydroxyflavone
3,5,7,4′-Tetrahydroxy-3′,5′-dimethoxyflavone
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
UNII
  • InChI=1S/C17H14O8/c1-23-11-3-7(4-12(24-2)14(11)20)17-16(22)15(21)13-9(19)5-8(18)6-10(13)25-17/h3-6,18-20,22H,1-2H3 ☒N
    Key: UZMAPBJVXOGOFT-UHFFFAOYSA-N ☒N
  • InChI=1/C17H14O8/c1-23-11-3-7(4-12(24-2)14(11)20)17-16(22)15(21)13-9(19)5-8(18)6-10(13)25-17/h3-6,18-20,22H,1-2H3
    Key: UZMAPBJVXOGOFT-UHFFFAOYAJ
  • COc1cc(cc(OC)c1O)C=3Oc2cc(O)cc(O)c2C(=O)C=3O
Properties
C17H14O8
Molar mass 346.291 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

Syringetin is an O-methylated flavonol, a type of flavonoid. It is found in red grape (absent in white grape),[1] in Lysimachia congestiflora[2] and in Vaccinium uliginosum (bog bilberries).[3] It is one of the phenolic compounds present in wine.[4]

It induces human osteoblast differentiation through bone morphogenetic protein-2/extracellular signal-regulated kinase 1/2 pathway.[4]

Metabolism

Syringetin is formed from laricitrin by the action of the enzyme laricitrin 5′-O-methyltransferase[1][5] (myricetin O-methyltransferase).[6]

Glycosides

References

  1. ^ a b c Mattivi, Fulvio; Guzzon, Raffaele; Vrhovsek, Urska; Stefanini, Marco; Velasco, Riccardo (2006). "Metabolite profiling of grape: Flavonols and anthocyanins". Journal of Agricultural and Food Chemistry. 54 (20): 7692–7702. doi:10.1021/jf061538c. PMID 17002441. S2CID 21407928.
  2. ^ Guo, Jian; Yu, Dong-Lei; Xu, Lizhen; Zhu, Min; Yang, Shi-Lin (1998). "Flavonol glycosides from Lysimachia congestiflora". Phytochemistry. 48 (8): 1445–1447. Bibcode:1998PChem..48.1445G. doi:10.1016/s0031-9422(97)01025-x. S2CID 85252109.
  3. ^ Lätti, Anja K.; Jaakola, Laura; Riihinen, Kaisu R.; Kainulainen, Pirjo S. (2010). "Anthocyanin and flavonol variation in bog bilberries (Vaccinium uliginosum L.) in Finland". Journal of Agricultural and Food Chemistry. 58 (1): 427–433. doi:10.1021/jf903033m. PMID 20000402. S2CID 28304488.
  4. ^ a b Hsu, Ya-Ling; Liang, Hsin-Lin; Hung, Chih-Hsing; Kuo, Po-Lin (2009). "Syringetin, a flavonoid derivative in grape and wine, induces human osteoblast differentiation through bone morphogenetic protein-2/extracellular signal-regulated kinase 1/2 pathway". Molecular Nutrition & Food Research. 53 (11): 1452–1461. doi:10.1002/mnfr.200800483. PMID 19784998. S2CID 42240173.
  5. ^ "Laricitrin 5′-O-methyltransferase activity". AmiGO 2. Gene Ontology Consortium. 2009-02-28. Retrieved 2021-04-04.
  6. ^ Foerster, Hartmut (2006-11-03). "MetaCyc pathway: Syringetin biosynthesis". MetaCyc. SRI International. Retrieved 2021-04-04.
  7. ^ Matsuda, F.; Suzuki, M.; Sawada, Y. (2016-01-19). "Syringetin-3-O-galactoside; LC-ESI-QTOF; MS2; CE:Ramp 5-60 V; [M+H]+". MassBank. Retrieved 2021-04-04.
  8. ^ Tohge, T. (2016-01-19). "Syringetin-3-O-glucoside; LC-ESI-QTOF; MS". MassBank. Retrieved 2021-04-04.
  9. ^ a b Slimestad, Rune; Hostettmann, Kurt (1996). "Characterisation of phenolic constituents from juvenile and mature needles of Norway spruce by means of high performance liquid chromatography–mass spectrometry". Phytochemical Analysis. 7 (1): 42–48. doi:10.1002/(SICI)1099-1565(199601)7:1<42::AID-PCA282>3.0.CO;2-K. S2CID 95953333.
  10. ^ Tyukavkina, N. A.; Medvedeva, S. A.; Ivanova, S. Z. (1974). "New flavonol glycosides from the needles of Larix sibirica". Chemistry of Natural Compounds. 10 (2): 170–172. doi:10.1007/BF00563605. S2CID 4819832.
  11. ^ Slimestad, Rune; Andersen, Øyvind M.; Francis, George W.; Marston, Andrew; Hostettmann, Kurt (1995). "Syringetin 3-O-(6′′-acetyl)-β-glucopyranoside and other flavonols from needles of Norway spruce, Picea abies". Phytochemistry. 40 (5): 1537–1542. doi:10.1016/0031-9422(95)00383-I. S2CID 84506810.


Quelle: https://en.wikipedia.org/wiki/Syringetin