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Flavones 4’,5,7-trihydroxy

The active coloring substance from camomile flowers is a polyhydroxy flavone, 4, 5,7-trihydroxy flavone [2].This substance is also found in parsley, and its common name is apiginin [54]. [Pg.339]

Several complexes of [Bu2Sn(IV)] with flavonoid glycosides 3-[6-0-(6-deoxy-a-L-mannopyranosyl)-(jS-D-glucopyranosyl)oxy]-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-H-l-benzopyran-4-one (rutin) and 2, 4, 3-trihydroxy-5, 4-dimetoxychalcone 4-rutinoside (hesperidin) and flavonoid aglycones (quercetin, morin, hesperitin, and other flavones) (Figure 5) were prepared. [Pg.377]

Fig. 74. 9-Trihydroxy-3,6-alkylethoxy flavones possible antipyretic principle ... Fig. 74. 9-Trihydroxy-3,6-alkylethoxy flavones possible antipyretic principle ...
Tominaga, H. and Horie, T., Studies of the selective 0-alkylation of flavonoids. XV. A convenient synthesis of 3,5,6-trihydroxy-7-methoxyflavone and revised structures of two natural flavones. Bull. Chem. Soc. Jpn., 66, 2668, 1993. [Pg.727]

Trihydroxy-7,8-dimethoxy flavone (thymusin) 6-Isobutyrate Asarina procumhens aerial parts Scrophulariaceae 140... [Pg.757]

Trihydroxy-6,7-dimethoxy flavone (isothymusin) 8-Glucoside Becium grandiflorum leaves Labiatae 141... [Pg.757]

Yadava, R.N. and Saurabh, K., A new flavone glycoside, 5,7,4 -trihydroxy-6,3 -dimethoxyflavone 5-rhamnoside from leaves of Tridax procumbens Linn., J. Asian Nat. Prod. Res., 1, 147, 1998. [Pg.795]

Apigenin 4 , 5,7-Tribydraxyflavone or 41,5,7-Trihydroxy-2-pbenylchromone, called in Ger 5.7.4 -Trioxy-flavon or 5.7-Dioxy-2-[4 -oxy-phenyl]-chromon, 0—C- C6H -0H... [Pg.473]

Margariten (5,7-dlhydroxy-4 -methoxy-8-C-B-neohesperidosylflavone) 2"-0-3-D-xylosylvltexin (5,7,4 -trihydroxy-8 (2"-0-3-D-xylosyl-C-3-D-glucosyl) flavone... [Pg.51]

Diosmetin (= 5,7, 3 -Trihydroxy-4 -methoxyflavone) (flavone) Arnica spp. (Asteraceae), Salvia tomentosa (Lamiaceae), Stemodia viscosa (Scrophulariaceae) Aminopeptidase N (45% inhibition at 300 pM) [63]... [Pg.577]

Diosmin (= 3, 5,7-Trihydroxy-4 -methoxy-7 -0-rutoside) (flavone-O-glycoside) Diosma crenulata (Rutaceae) ACE (44% inhibition at 300 pM) [76]... [Pg.579]

Hydroxyflavanone represents the simplest compound of this class and is found in many legumes.9 2-Hydroxyflavanones, which are expected to be quite labile and converted to their corresponding flavones, have also been identified. These include the 2,5,7-trihydroxyflavanone 7-0-glucoside (8) in Malus spp.,80 2,5-dihydroxy-7-methoxyflavanone in Populus nigra, 1 6,7,8-trihydroxy-5-methoxyflavanone (9) in Isodon oresbius,82 and 2,5-dihydroxy-7-methoxyflavanone and its 6-C- and 8-C-methyl isomers (10) in Friesodielsia enghiana.83 All of these exhibit a lack of B-ring hydroxylation. [Pg.14]

Anthocyanins may have been eaten for around 7.5 million years since the beginning of mankind. Anthocyanins such as flavones and flavanones are the derivatives of 3,5,7-trihydroxy-flavylium chloride that could provide red, blue, yellow, purple and other colors of vegetables and fruits. [Pg.4]

Some bioactive flavones include aldose reductase inhibitors (apigenin 4 -methyl ether (acacetin), apigenin 7-0-apioside (apiin), 5,7-dihydroxyflavone (chrysin) and luteolin) antiinflammatory 5-LOX inhibitors (5,6,7-trihydroxyflavone (baicalein), 5,6,3, 4 -tetrahydroxy 7-methoxyflavone (pedalitin), 5,3, 4 -trihydroxy 6,7-dimethoxyflavone (cirsiliol, 6-0-methylpedalitin) and flavone) a COX inhibitor (flavone) iodothyronine deiodinase inhibitors (acacetin, chrysin and luteolin) a NADH and succinate dehydrogenase inhibitor (luteolin) millet-derived, goitrogenic inhibitors of thyroid peroxidase (flavone C-glycosides orientin and vitexin) and protein kinase inhibitors (acacetin, apigenin, baicalein, flavone, luteolin, 5,7,3, 4, 5 -pentahydroxyflavone (tricetin) and tricetin 3, 4, 5 -trimethyl ether). [Pg.29]

Hispidulin (= Dinatin Scutellarein 6-methvl ether) 5,7, 4 -Trihydroxy-6-methoxyflavone (flavone)... [Pg.170]

Swertifrancheside (= 1,5,8-Trihydroxy-3-methoxy-7-(5, 7, 3", 4"-tetrahydroxy-6 -C-(3-D-glucopyranosyl-4 -oxy-8 -flavyl )-xanthone) Flavone-xanthone C-glycoside)... [Pg.361]

Trihydroxy flavone) leaf], Oroxylum indicum (AROM, PKC signalling,... [Pg.382]

Chrysoeriol (= Luteolin 3 -methyl ether 5,7,4 -Trihydroxy-3 -methoxy-flavone) (flavone) Chrysosplenol B (= 5,4 -Dihydroxy-3,6,7,3 -tetramethoxyflavone) (flavonol)... [Pg.637]

Cirsilineol (= 5,4 -Dihydroxy-6,7,3 -trimethoxyflavone) (flavone) Cirsilineol 4 -Glc (= 5,4 -Dihydroxy-6,7,3 -trimethoxyflavone 4 -Glc) (flavone O-glucoside) Cirsiliol (= 5,3, 4 -Trihydroxy-6,7-dimethoxyflavone)... [Pg.637]

See other pages where Flavones 4’,5,7-trihydroxy is mentioned: [Pg.35]    [Pg.66]    [Pg.67]    [Pg.296]    [Pg.140]    [Pg.126]    [Pg.58]    [Pg.60]    [Pg.64]    [Pg.70]    [Pg.70]    [Pg.79]    [Pg.83]    [Pg.35]    [Pg.101]    [Pg.457]    [Pg.872]    [Pg.1029]    [Pg.1034]    [Pg.143]    [Pg.697]    [Pg.127]    [Pg.522]    [Pg.199]    [Pg.411]    [Pg.16]    [Pg.527]   


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