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Norbergenin
Norbergenin is a chemical compound. It is the ''O''-demethylated derivative of bergenin. It can be isolated from rhizomes of ''Bergenia stracheyi ''Bergenia stracheyi'' is a plant species in the genus '' Bergenia'' found in the Western Himalayas, from 2700 to 4700 m, Afghanistan and Tajikistan Tajikistan, officially the Republic of Tajikistan, is a landlocked country in Central Asia. D ...''. References Pyrogallols Lactones Pyranoisochromenes {{phenol-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bergenin
Bergenin, alias cuscutin, is trihydroxybenzoic acid glycoside. It is the C-glycoside of 4-O-methyl gallic acid. It possesses an O-demethylated derivative called norbergenin. These are chemical compounds and drugs of Ayurveda Ayurveda (; ) is an alternative medicine system with historical roots in the Indian subcontinent. It is heavily practised throughout India and Nepal, where as much as 80% of the population report using ayurveda. The theory and practice of ayur ..., commonly known as Paashaanbhed. It shows a potent immunomodulatory effect. Bergenin can be isolated from '' Bergenia'' species like '' Bergenia ciliata'' and '' Bergenia ligulata'', from rhizomes of '' Bergenia stracheyi''. It is also found in the stem bark of '' Dryobalanops aromatica'', in '' Ardisia elliptica'' and in '' Mallotus japonicus''.Hepatoprotective effects of bergenin, a major constituent of Mallotus japonicus, on carbon tetrachloride-intoxicated rats. Lim HwaKyung, Kim HackSeang, Choi HongSerck ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bergenia Stracheyi
''Bergenia stracheyi'' is a plant species in the genus '' Bergenia'' found in the Western Himalayas, from 2700 to 4700 m, Afghanistan and Tajikistan Tajikistan, officially the Republic of Tajikistan, is a landlocked country in Central Asia. Dushanbe is the capital city, capital and most populous city. Tajikistan borders Afghanistan to the Afghanistan–Tajikistan border, south, Uzbekistan to .... Bergenin and norbergenin are chemical compounds that can be isolated from rhizomes of ''B. stracheyi''.Immunomodulatory effect of bergenin and norbergenin against adjuvant-induced arthritis—A flow cytometric study Nighat Nazira, Surrinder Koulb, Mushtaq A. Qurishia, Sachin C. Tanejab, Sheikh F. Ahmadc, Sarang Banic and Ghulam N. Qazi, Journal of Ethnopharmacology, Volume 112, Issue 2, 13 June 2007, pp. 401-405, Cultivars * ''Bergenia stracheyi 'Alba * ''Bergenia stracheyi 'Afghanica References External links stracheyi Plants described in 1868 {{Saxifragaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lactones
Lactones are cyclic carboxylic esters. They are derived from the corresponding hydroxycarboxylic acids by esterification. They can be saturated or unsaturated. Lactones are formed by lactonization, the intramolecular esterification of the corresponding hydroxycarboxylic acids. Nomenclature Greek prefixes in alphabetical order indicate ring size. Lactones are usually named according to the precursor acid molecule (''aceto'' = 2 carbon atoms, ''propio'' = 3, ''butyro'' = 4, ''valero'' = 5, ''capro'' = 6, etc.), with a ''-lactone'' suffix and a Greek letter prefix that specifies the number of carbon atoms in the heterocycle — that is, the distance between the relevant -OH and the -COOH groups along said backbone. The first carbon atom after the carbon in the -COOH group on the parent compound is labelled α, the second will be labeled β, and so forth. Therefore, the prefixes also indicate the size of the lactone ring: α-lactone = 3-membered ring, β-lactone = 4-membered, γ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
