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An unusual C6-C6" linked flavonoid from Miconia cabucu (Melastomataceae).
Phytochemistry. 2007 Jul; 68(13):1781-4.P

Abstract

Chromatographic fractionation of the methanolic extract from the leaves of Miconia cabucu Hoehne (Melastomataceae) afforded the first example of a C(6)-C(6") linked flavone dimer, 5-hydroxy-4',7-dimethoxyflavone-(6-C-6'')-5''-hydroxy-3''',4''',7''-trimethoxyflavone as well as the known compounds, quercetin-3-O-alpha-l-rhamnopyranosyl-(2-->1)-O-beta-D-xylopyranoside, quercetin-3-O-alpha-l-rhamnopyranoside, myricetin-3-O-alpha-l-rhamnopyranoside, quercetin-3-O-beta-D-glucopyranoside, kaempferol-3-O-beta-D-(6''-coumaroyl)-glucopyranoside and gallic acid. Their chemical identities were established by application of NMR spectroscopic methods including 2D-NMR, as well as UV and ESI-MS analyses.

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Authors+Show Affiliations

Rodrigues J
Instituto de Química, Universidade Estadual Paulista, UNESP, C.P. 355, 14801-97, Araraquara, São Paulo, Brazil.
Rinaldo D
No affiliation info available
dos Santos LC
No affiliation info available
Vilegas W
No affiliation info available

MeSH

Chromatography, High Pressure LiquidFlavonoidsGallic AcidGlycosidesMelastomataceaeMolecular StructureNuclear Magnetic Resonance, Biomolecular

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17540417

Citation

Rodrigues, Juliana, et al. "An Unusual C6-C6" Linked Flavonoid From Miconia Cabucu (Melastomataceae)." Phytochemistry, vol. 68, no. 13, 2007, pp. 1781-4.
Rodrigues J, Rinaldo D, dos Santos LC, et al. An unusual C6-C6" linked flavonoid from Miconia cabucu (Melastomataceae). Phytochemistry. 2007;68(13):1781-4.
Rodrigues, J., Rinaldo, D., dos Santos, L. C., & Vilegas, W. (2007). An unusual C6-C6" linked flavonoid from Miconia cabucu (Melastomataceae). Phytochemistry, 68(13), 1781-4.
Rodrigues J, et al. An Unusual C6-C6" Linked Flavonoid From Miconia Cabucu (Melastomataceae). Phytochemistry. 2007;68(13):1781-4. PubMed PMID: 17540417.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - An unusual C6-C6" linked flavonoid from Miconia cabucu (Melastomataceae). AU - Rodrigues,Juliana, AU - Rinaldo,Daniel, AU - dos Santos,Lourdes Campaner, AU - Vilegas,Wagner, Y1 - 2007/05/30/ PY - 2006/06/05/received PY - 2007/02/12/revised PY - 2007/04/14/accepted PY - 2007/6/2/pubmed PY - 2007/10/30/medline PY - 2007/6/2/entrez SP - 1781 EP - 4 JF - Phytochemistry JO - Phytochemistry VL - 68 IS - 13 N2 - Chromatographic fractionation of the methanolic extract from the leaves of Miconia cabucu Hoehne (Melastomataceae) afforded the first example of a C(6)-C(6") linked flavone dimer, 5-hydroxy-4',7-dimethoxyflavone-(6-C-6'')-5''-hydroxy-3''',4''',7''-trimethoxyflavone as well as the known compounds, quercetin-3-O-alpha-l-rhamnopyranosyl-(2-->1)-O-beta-D-xylopyranoside, quercetin-3-O-alpha-l-rhamnopyranoside, myricetin-3-O-alpha-l-rhamnopyranoside, quercetin-3-O-beta-D-glucopyranoside, kaempferol-3-O-beta-D-(6''-coumaroyl)-glucopyranoside and gallic acid. Their chemical identities were established by application of NMR spectroscopic methods including 2D-NMR, as well as UV and ESI-MS analyses. SN - 0031-9422 UR - https://www.unboundmedicine.com/medline/citation/17540417/An_unusual_C6_C6"_linked_flavonoid_from_Miconia_cabucu__Melastomataceae__ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0031-9422(07)00267-1 DB - PRIME DP - Unbound Medicine ER -