Download Biflavonoids: Occurrence, Structural Features and by Andrew G. Mercader, Alicia B. Pomilio PDF

By Andrew G. Mercader, Alicia B. Pomilio

Biflavonoids include a bunch of the flavonoid kinfolk that own quite a few constructions and organic actions of excessive relevance, resembling anticancer, antibacterial, antifungal, antiviral, anti inflammatory, antinociceptive, antioxidant, vasodilator and anticlotting. The chemistry of biflavonoids is essential in lots of fields of analysis, specially simply because those compounds are structurally diverse bioactive molecules with strength for biomedical functions. This publication highlights the structural biflavonoid variability, rearrangements and diverse stereochemistry via approximately 470 buildings disbursed in a few species of Angiosperms, Gymnosperms, ferns and mosses.

Show description

Read Online or Download Biflavonoids: Occurrence, Structural Features and Bioactivity PDF

Similar plants books

Edible Wild Plants: A North American Field Guide

“Season-by-season consultant to identity, harvest, and guidance of greater than 2 hundred universal safe to eat crops to be present in the wild. .. .Hundreds of safe to eat species are integrated. .. .[This] convenient paperback advisor contains jelly, jam, and pie recipes, a seasonal key to crops, [and a] chart directory dietary contents.

The Seed Underground: A Growing Revolution to Save Food

There isn't any depression in a seed. There's merely lifestyles, anticipating the precise conditions-sun and water, heat and soil-to be let loose. daily, hundreds of thousands upon hundreds of thousands of seeds elevate their eco-friendly wings.

At no time in our heritage have american citizens been extra enthusiastic about nutrients. strategies- together with these for neighborhood, sustainable, and natural food-seem unlimited. And but, our nutrition offer is profoundly in danger. Farmers and gardeners a century in the past had 5 occasions the chances of what to plant than farmers and gardeners do this day; we're wasting untold numbers of plant types to genetically transformed business monocultures. In her most recent paintings of literary nonfiction, award-winning writer and activist Janisse Ray argues that if we're to safe the way forward for foodstuff, we first needs to comprehend the place all of it starts off: the seed.

'The Seed Underground' is a trip to the frontier of seed-saving. it's pushed through tales, either the author's personal and people from those who are waging a lush and quiet revolution in millions of gardens throughout the US to maintain our conventional cornucopia of foodstuff by means of easily ageing types and consuming them. 'The Seed Underground' will pay tribute to everyday and threatened forms, deconstructs the politics and genetics of seeds, and divulges the magnificent characters who develop, examine, and store them.

The lichens

An up to date survey of the improvement, anatomy, body structure and ecology of the lichens. every one bankruptcy and appendix has bibliography. summary: An up to date survey of the improvement, anatomy, body structure and ecology of the lichens. every one bankruptcy and appendix has bibliography

Elsevier's Dictionary of Botany: Russian-English

This dictionary includes nearly 60,000 entries, constituting the main huge directory of Russian, English and Latin names of vegetation, bushes, shrubs, fungi, and lichens. additionally it is lots of botanical and organic phrases usually taking place in Russian botanical literature.

Extra resources for Biflavonoids: Occurrence, Structural Features and Bioactivity

Example text

Pomilio Taiwaniaflavone series has (I-3,II-3′)-biflavones (189-191). The following series possesses a (I-2′,II-2′)-biflavone (192) and a (I-2′,II-2′)-biflavonol (193). Biflavonoids linked by a (I-2′,II-6) bond were included in the Dicranolomin series, which has the following subsections: (I-2′,II-6)-biflavones (194,195); (I-2′,II-6)-flavanone-flavone dimers (196,197); (I-2′,II-6)-flavone-flavanone dimers (198,199); (I-2′,II-6)-biflavanone (200); and (I-2′,II-6)benzopyranobenzofuranbiflavone (201).

Pomilio (I-3,II-8)-Flavanone-flavone dimers R R1 O O R5 R2 O O R2 (+)-Volkensiflavone (+)-Volkensiflavone-II-7sulfate Spicataside (volkensiflavone-II-7-OD-glucoside) Spicataside nona-Oacetate I-5,7,4′,II-5,7,4′-Hexa-Omethylvolkensiflavone Fukugetin (+)-Morelloflavone-II-7sulfate I-5,7,4′,II-5,7,3′,4′-HeptaO-methyl-morelloflavone Fukugiside Morelloflavone I5,7,4′,II-5,7,3′,4′-heptaO-acetate I-5,7,3′,4′,II-5,7,4′Heptahydroxy-(I-3,II-8)flavanonylflavone R4 I O 3 8 O O R3 O II O O R2 (154) R H R1 H R2 H R3 H R4 H R5 H (155) H H H SO3H H H (156) H H H Glu H H (157) H Ac Ac 2,3,4,6-TetraO-acetylGlu H Ac (158) H Me Me Me H Me (159) H H H H OH H (160) H H H SO3H OH H (161) H Me Me Me OMe Me (162) H H H Glu OH H (163) H Ac Ac Ac OAc Ac (164) OH H H H H H (I-3,II-8)-Flavanone-flavonol dimers OH OH HO O I OH O HO OH 3 8 O II O OH Pancibiflavonol (165) OH Biflavonoid Structures 27 OH OH HO O I 3 O 8 OH O HO II OH O OH Garcinianin (atropisomers) (166) (I-3,II-8)-Biflavanones R1 O R O O R3 O R4 I R1 O 3 O 8 O II O R2 GB1a* I-5,7,4′,II-5,7,4′-Hexa-O-methylGB1a GB1a-II-7-O-β-D-glucopyranoside (+)-GB1b* ent-Naringeninyl-(I-3α,II-8)-II-4‘O-methylnaringenin GB2a GB2a-I-7-O-β-D-glucopyranoside GB2a-II-7-O-β-D-glucopyranoside (xanthochymuside) II-4′-O-Methyl-GB2a* I-5,7,4',II-3,5,7,3′,4′-Octahydroxy(I-3,II-8)-biflavanone R5 O O R (167) R H R1 H R2 H R3 H R4 H R5 H (168) Me Me Me Me H H (169) (170) H H H H Glu H H H H H H H (171) H H H Me H H (172) (173) H Glu H H H H H H OH OH H H (174) H H Glu H OH H (175) H H H Me OH H (175a) H H H H OH OH *Different stereochemistry.

Pomilio (Continued). Neochamaejasmin A (I-2S,3S;II-2S,3S) Neochamaejasmin B (I-2S,3S;II-2R,3S) I-7-O-Methylneochamaejasmin A (I-2S,3S;II2S,3S) Sikokianin A (I-2S,3S;II-2R,3R) Sikokianin B (I-2S,3R;II-2R,3R) Sikokianin C (I-2S,3R;II-2R,3S) Chamaejasmenin A (I-2S,3R;II-2R,3S) Chamaejasmenin B (I-2S,3S;II-2R,3R) Isochamaejasmenin B (I-2S,3S;II-2S,3S) Chamaejasmenin C (I-2S,3S;II-2R,3S) Chamaejasmenin D (I-2S,3S;II-2S,3S) Ruixianglangdusu A (I-2R,3R;II-2R,3R) Ruixianglangdusu B (I-2S,3R;II-2R,3S) (132) (133) H H OH OH H H H H H H OH OH (134) Me OH H H H OH (135) (136) (137) (138) (139) (140) (141) (142) (143) (144) H H H H H H Me Me H Me OH OH OH OH OH OH OH OH OH OH Me Me Me Me Me Me Me Me Me Me H Me Me H H H H H Me H H H H Me Me Me Me H Me Me OH OH OH OH OH OH OH OH OH OH Figure 6.

Download PDF sample

Rated 4.83 of 5 – based on 14 votes