A New Flavone and Cytotoxic Constituents of Nicotiana tabacum
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DOI: 10.1007/s10600-018-2551-4
Abstract: A new flavone, 8-formyl-7-hydroxy-6,4′-dimethoxyflavone (1), has been isolated from the leaves of Nicotiana tabacum, together with five known compounds, 8-formyl-4′-hydroxy-6,7-dimethoxyflavone (2), quercetin (3), (2R,3R)-3,5-dihydroxy-7-methoxyflavanone (4), kaempferol (5), and rutin (6). The structure of the new… read more here.
Keywords: nicotiana tabacum; formyl hydroxy; hydroxy dimethoxyflavone; new flavone ... See more keywords
A New Flavone from Flos Sophorae Immaturus Through Microbial Transformation by Nigrospora sphaerica ZMT05
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DOI: 10.1007/s10600-019-02885-3
Abstract: A new flavone derivative, 3′-(γ,γ-dimethylallyloxy)-5,7-dihydroxy-4′-methoxyflavone (1), was isolated from Flos Sophorae Immaturus through microbial transformation by the fungus Nigrospora sphaerica ZMT05. Its structure was elucidated by comprehensive spectroscopic analyses. This compound showed moderate in vitro… read more here.
Keywords: microbial transformation; flos sophorae; immaturus microbial; sophorae immaturus ... See more keywords
Three new chromanes and one new flavone C-glycoside from Mallotus apelta
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DOI: 10.1080/10286020.2022.2051494
Abstract: Abstract Three new chromanes, malloapeltas J–L (1–3), and one new flavone C-glycoside, malloflavoside (4), together with four known compounds, apigenin 6-C-β-D-xylopyranosyl-8-C-α-L-arabinopyranoside (5), apigenin 6-C-β-D-glucopyranosyl-8-C-α-L-arabinopyranoside (6), apigenin 7-O-β-D-apiofuranosyl-(1→2)-β-D-glucopyranoside (7), and acantrifoside E (8) were isolated from… read more here.
Keywords: flavone glycoside; one new; three new; new flavone ... See more keywords
New flavone, and cytotoxicity activity of Rauia resinosa ethanolic extract and constituents.
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DOI: 10.1080/14786419.2022.2039138
Abstract: The ethanolic extract from leaves of Rauia resinosa, Rutaceae, provided a new flavone, 5-hydroxy-5',6,7-trimethoxy-3',4'-methylenedioxyflavone (1), in addition to four known compounds: 3',4',5,5',7-pentamethoxyflavone (2), 5,7,8-trimethoxy-3'4'-methylenedioxyflavone (3), 3',4',5,7,8-pentamethoxyflavone (4) and β-sitosterol (5). The structures of all compounds… read more here.
Keywords: rauia resinosa; new flavone; cytotoxicity; ethanolic extract ... See more keywords
A New Flavone from the Leaves of Astronia formosana
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DOI: 10.1177/1934578x1801300610
Abstract: A new flavone, 5,4′-dihydroxy-7,3′-dimethoxy-6,8-dimethylflavone (1), together with four known compounds, ursolic acid (2), β-sitosterol-β-D-glucoside (3), β-sitosterol (4) and lupeol (5) were isolated from the methanolic extract of the leaves of Astronia formosana. The structures were… read more here.
Keywords: flavone leaves; astronia formosana; leaves astronia; new flavone ... See more keywords