Quercetin-rutinoside

Rutin (= Quercetin 3-0-rutinoside Quercetin 3-0-rhamnosyl-glucoside) (flavonol O-glycoside)... 

Our investigation on Malaysian H. diffusa [31] as well as H. her-bacea also yielded quercetin 3-0-glucopyranoside (21) together with quercetin 3-0-rutinoside (24). From H. herbacea, we have found kaempferol 3-O-rutinoside (25), kaempferol 3-O-glucoside (26), kaempferol 3-O-arabinopyranoside (27) and quercetin 3-0-galactoside (28) [7]. We have also reported kaempferitrin (29) from H. verticillata [32] and isovitexin (30) from the aerial parts of H. dichotoma [33]. 

Figure 2.16 HPLC profile of flavonols of a Cabernet Sauvignon grape skins extract recorded at wavelength 360nm. (1) myricetin glucuronide, (2) myricetin gluco-side, (3) quercetin glucuronide, (4) quercetin glucoside, (5) quercetin rutinoside, (6) kaempferol glucuronide, (7) kaempferol glucoside, (8) unidentified flavonol...

Tomato Arabidopsis/ overexpression CaMV35S/ MYB12 MYB12 R2R3-MYB TF mediates the accumulation of flavonoids in tomato peel Higher chlorogenic acid (27-fold), dicaffeoylquinic acid (26-fold), tricaffeoylquinic acid (42-fold), quercetin rutinoside (67-fold), kaempferol rutinoside (593-fold) [54]... 

Figure 8.5 Average plasma concentration versus time curves drawn from literature survey. Data were converted to correspond to a single dose of 50 mg aglycone equivalent, (a) isoflavone agly-cones (b) isoflavone glucosides (c) quercetin glucosides (d) quercetin rutinoside (e) flavanone glycosides (f) (epi)catechins (g) (—)-epigallocatechin gallate (h) anthocyanins.

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. 

The plant is known elaborate a series of quite unusual phenanthrene alkaloid derivatives, of which aristoliukine-C, aristofolin A and E, aristolochic acid-la methyl ester, and aristolochic acid. Other chemical constituents found in this plant are flavonoid glycosides such as kaempferol-3-O-rutinoside and quercetin kaempferol-3-O-rutinoside (3,4). Exposure to Aristolochiaceae family is associated with the development of cancer in humans. A significant advance is the toxicological effects of aristolochic acid has been provided by the work of Pezzuto et al. They showed that aristolochic acid is a mutagen... 

For example, the mouth is exposed to a substantial, albeit transient and spasmodic, flux of PPT. It has been reported that quercetin-4 -glucoside, quercetin-3-glucoside, phloretin-2 -glucoside, and genistein-7-glucoside can be rapidly hydrolyzed, and quercetin-3-rutinoside... 

Olthof, M.R., Hollman, P.C., Buijsman, M.N., van Amelsvoort, J.M., and Katan, M.B., Chloro-genic acid, quercetin-3-rutinoside and black tea phenols are extensively metabolized in humans, J. Nutr., 133, 1806, 2003. 

Quercetin 3,3 -dimethyl ether 7-Rutinoside Bidens pilosa roots Compositae 399... 

Figure 1 Structures of (A) ginkgolide A, ginkgolide B, bilobalide, (B) flavonolgly-cosides (R=H kaempferol-3-O-rutinoside R=OH quercetin-3-O-rutinoside R=0CH3 isorhamnetin-3-O-rutinoside) and (C) ginkgolic acids (R=Ci3H27, C15H31, C15H29, C15H33).

Licania apetala var. apetala (E. May) Fritsch is a tree native to the Amazonian forest. Its leaves were extracted with the same method used for L. licaniaeflora. From the n-butanol extract of the leaves seven flavonoids were obtained quercetin 3-0- 3-D-galactopyranoside (6), quercetin 3-O-a-L-rhamnopyranoside (8) quercetin 3-O-rutinoside (18), quercetin 3-0-a-L-arabinopyranoside (9), taxifolin 3-O-a-L-rhamnopyranoside (64), myricetin 4 -O-a-L-rhamnopyranoside (66), and kaempferol 3-O-rutinoside (67), [see Fig. (1), (2), (7), and (8)] [18]. 

Two catechins, ( + )catechin and ( — )epicatechin, and two leucoanthocyanins were isolated from Bartlett pears by Nortje (165).. Durkee et al. (166) identified arbutin (p-hydroxphenyl-/ -D-glucoside) in mature and immature pears. Several flavanol glycosides such as quercetin 3-glucoside, isorhamnetin-3-glucoside, isorhamnetin-3-rutinoside, isorham-netin-3-galactoside, and quercetin-7-xyloside were identified by Duggan (167). 

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