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Amurensin (flavonol)
Amurensin is a flavonol, a type of flavonoid. It is the tert-amyl alcohol derivative of kaempferol 7-O-glucoside. It can be found in ''Phellodendron amurense ''Phellodendron amurense'' is a species of tree in the family Rutaceae, commonly called the Amur cork tree. It is a major source of '' huáng bò'' ( or 黄 檗), one of the 50 fundamental herbs used in traditional Chinese medicine. The Ainu pe ...''. --> Related compounds 6"'-O-acetyl amurensin is found in the leaves of ''Phellodendron japonicum''.Constituents of Leaves of Phellodendron japonicum MAXIM. and Their Antioxidant Activity, Chih-Yang Chiu, Chia-Ying Li, Chao-Chen Chiu, Masatake Niwa, Susumu Kitanaka, Amooru Gangaiah Damu, E-Jian Lee and Tian-Shung Wu, Chem. Pharm. Bull., Vol. 53, pages 1118-1121 (2005), References Flavonol glucosides Tertiary alcohols Phenols 3-Hydroxypropenals Resorcinol ethers {{Aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flavonol
Flavonols are a class of flavonoids that have the 3-hydroxyflavone backbone (IUPAC name : 3-hydroxy-2-phenylchromen-4-one). Their diversity stems from the different positions of the phenolic -OH groups. They are distinct from flavanols (with "a") such as catechin, another class of flavonoids. Flavonols are present in a wide variety of fruits and vegetables. In Western populations, estimated daily intake is in the range of 20–50 mg per day for flavonols. Individual intake varies depending on the type of diet consumed. The phenomenon of dual fluorescence (due to excited state intramolecular proton transfer or ESIPT) is induced by tautomerism of flavonols (and glucosides) and could contribute to plant UV protection and flower colour. Besides being a subclass of flavonoids, flavonols are suggested by a study of cranberry juice to play a role along with proanthocyanidins, in the juice's ability to block bacterial adhesion, demonstrated by the compressing the fimbria of ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tert-amyl Alcohol
''tert''-Amyl alcohol (TAA) or 2-methylbutan-2-ol (2M2B), is a branched pentanol. Historically TAA has been used an anesthetic and more recently used as a recreational drug. TAA is mostly a positive allosteric modulator for GABAA receptors in the same way as ethanol. The psychotropic effects of TAA and ethanol are similar, though distinct. Impact on coordination and balance are proportionately more prominent with TAA, which is significantly more potent by weight than ethanol. TAA is a colorless liquid with a burning flavor and an unpleasant odor similar to paraldehyde with a hint of camphor. TAA remains as a liquid at room temperature making it a useful alternative solvent to ''tert''-butyl alcohol. Production TAA is primarily made by the hydration of 2-methyl-2-butene in the presence of an acidic catalyst. Natural occurrence Fusel alcohols like TAA are grain fermentation byproducts and therefore trace amounts of TAA are present in many alcoholic beverages. Traces of TAA hav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kaempferol 7-O-glucoside
Kaempferol 7-''O''-glucoside is a flavonol glucoside. It can be found in ''Smilax china'', and in the fern ''Asplenium rhizophyllum'', and its hybrid descendants, as part of a complex with caffeic acid. Derivatives Amurensin (flavonol), Amurensin is the 2-Methyl-2-butanol, ''tert''-amyl alcohol derivative of kaempferol 7-''O''-glucoside. 6-O-acetyl amurensin, 6''-''O''-acetyl amurensin is found in the leaves of ''Phellodendron japonicum''. References Kaempferol glycosides Flavonol glucosides {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phellodendron Amurense
''Phellodendron amurense'' is a species of tree in the family Rutaceae, commonly called the Amur cork tree. It is a major source of '' huáng bò'' ( or 黄 檗), one of the 50 fundamental herbs used in traditional Chinese medicine. The Ainu people used this plant, called shikerebe-ni, as a painkiller. It is known as ''hwangbyeok'' in Korean and (キハダ) ''kihada'' in Japanese. It is native to eastern Asia: northern China, northeast China, Korea, Ussuri, Amur, and Japan, the Amur cork tree is considered invasive in many parts of North America. The State of Massachusetts lists it as a noxious weed.Bruce Marlin''Phellodendron amurense''/ref> Medicinal use It has been used as a Chinese traditional medicine for the treatment of meningitis, bacillary dysentery, pneumonia, tuberculosis, tumours, jaundice and liver cirrhosis. Used orally to treat abdominal pain, diarrhoea, gastroenteritis and urinary tract infections. ''Phellodendron amurense'' may protect cartilage against os ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
