Three Minor Flavone Glycosides from <i>Aeschynanthus</i> Species and Cultivars (Gesneriaceae)
نویسندگان
چکیده
Three minor flavonoids were isolated from the corollas and leaves of Aeschynanthus species cultivars using MeOH, identified as scutellarein 7- O-(6″-methylglucuronopyranoside) (1), 6-hydroxyluteolin (2) nepetin 4′- O-glucuronopyranoside (3) by UV 1 H NMR spectroscopy, LC–MS, acid hydrolysis. These flavone glycosides are reported in nature for first time.
منابع مشابه
Flavones and Flavone Glycosides from Salvia macrosiphon Boiss
Salvia genus, which is generally called Maryam-Goli in the Persian language, belongs to Lamiaceae family and comprises 58 species in Iran. Four flavonoids plus a steroid compound were isolated from the ethyl acetate and methanol extracts of the aerial parts of Salvia macrosiphon Boiss, using different chromatographic methods on the silica gel and sephadex LH20. The structures of the isolated co...
متن کاملFlavones and Flavone Glycosides from Salvia macrosiphon Boiss
Salvia genus, which is generally called Maryam-Goli in the Persian language, belongs to Lamiaceae family and comprises 58 species in Iran. Four flavonoids plus a steroid compound were isolated from the ethyl acetate and methanol extracts of the aerial parts of Salvia macrosiphon Boiss, using different chromatographic methods on the silica gel and sephadex LH20. The structures of the isolated co...
متن کاملFlavones and flavone glycosides from Halophila johnsonii.
Halophila johnsonii Eiseman is a shallow-water marine angiosperm which contains UV-absorbing metabolites. Studies on methanol extracts of H. johnsonii by means of HPLC-UV, NMR, HPLC-MS resulted in isolation and identification of seven previously unknown flavone glycosides: 5,6,7,3',4',5'-hexahydroxyflavone-7-O-beta-glucopyranoside (1), 5,6,7,3',4',5'-hexahydroxyflavone-7-O-(6''-O-acetyl)-beta-g...
متن کاملFlavone glycosides from Calycotome villosa Subsp. Intermedia.
The known flavonoid chrysin-7-O-(beta-D-glycopyranoside) (chrysin glucoside,1) as a major fraction and a new glycoside flavone, chrysin-7-O-beta-D-[(6"-acetyl)glycopyranoside] (2) were isolated from the flowers and leaves of Calycotome Villosa Subsp. Intermedia, They were identified by UV-Vis, 1R, (1)H-, (13)C-NMR and ESI-MS.
متن کاملFlavone C-glycosides from Anthurium andraeanum.
We describe here the isolation of three flavone 6-C-glycosides from the leaves of Anthurium andraeanum, The two new flavones were identified through detailed spectroscopic analysis as 4"'-(3,4-dimethoxycinnamoyl)-embinin (2) and 4"'-ferruloyl-embinin (3).
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Natural Product Communications
سال: 2023
ISSN: ['1555-9475', '1934-578X']
DOI: https://doi.org/10.1177/1934578x231188858