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Quercetin-3-methyl ether

Flavonoid sulphates such as quercetin 3,7-di-O-methyl 3-sulphate and kaempferol 7-0-methyl 3-sulphate, which inhihited the growth of Mycobacterium tuberculosis and Klebsiella pneumoniae, were isolated from the -hutanol fraction of 80% methanol extract of Argyreia speciosa (Burm. f) Boj. (Convolvulaceae), while flavonoids with mti-Helicobacter pylori activity, such as quercetin 3-methyl ether (isorhamnetin) (Fig. 3), were isolated from Cistus laurifolius L. (Cistaceae). ... [Pg.448]

Disulfate Quercetin 3-methyl ether Alchornea laxiflora whole plant Euphorbiaceae 362... [Pg.770]

Trisulfate Quercetin 3 -methyl ether Tamarix amplexicaulis leaves Tamaricaceae 374... [Pg.770]

Trisulfate-3 -glucuronide Quercetin 3 -methyl ether (isorhamnetin)... [Pg.842]

Flavonols. The most common flavonols (3-hydroxyflavones) include kaempferol (3,5,7,4 -tetrahydroxyflavone), quercetin (3,5,7,3, 4 -pentahydroxyflavone), myricetin (3,5,7,3, 4, 5 -hexahydroxyflavone), quercitrin (quercetin 3-0-rhamnoside), isoquercitrin (quercetin 3-0-glucoside), isorhamnetin (quercetin 3 -methyl ether) and rutin (quercetin... [Pg.29]

Potent antifeedant activity against the larvae of Helicoverpa armigera has been investigated for 3-hydroxy-4-prenyl-5-methoxystilbene-2-carboxylic acid on the pod surfaces of Cajanus cajan. The activity could be modulated by quercetin-3-methyl ether [461]. [Pg.591]

From 3-methoxy-5,7,3, 4 -tetraethoxyflavone (m.p. 146-148°) (SM) in boiling ethanol for 6 h (35%). SM was prepared by total ethylation of quercetin 3-methyl ether (m.p. 261-263°), itself obtained by hydrolysis of its glycoside (m.p. 165-167°). This one (stizoloside) was isolated from the aerial parts of Stizolophus balsamita (Lam.) A. Takht, so-called Centaurea balsamita Lam. (Compositae) [4980]. [Pg.1339]

Tetrahydroxy-3-methoxy-flavone (Quercetin 3-methyl ether) Asplenium viride Huds. C16H12O7 153 H... [Pg.136]

Ophioglossum vulgatum L. Quercetin 3-methyl ether 7-0-diglucoside-4 -0-glucoside (374) 235 ... [Pg.231]

See other pages where Quercetin-3-methyl ether is mentioned: [Pg.6]    [Pg.83]    [Pg.128]    [Pg.186]    [Pg.276]    [Pg.294]    [Pg.448]    [Pg.480]    [Pg.482]    [Pg.118]    [Pg.645]    [Pg.783]    [Pg.788]    [Pg.841]    [Pg.214]    [Pg.195]    [Pg.244]    [Pg.350]    [Pg.944]    [Pg.241]    [Pg.28]    [Pg.171]   
See also in sourсe #XX -- [ Pg.482 ]

See also in sourсe #XX -- [ Pg.28 ]



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3 -Methyl quercetin

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