Pyranoflavonoid

	Pyranoflavonoid The pyranoflavonoids are a type of flavonoids possessing a pyran group. Cyclocommunin is another natural pyranoflavonoid. Pyranoanthocyanins Pyranoisoflavones * Alpinumisoflavone * Di-O-methylalpinumisoflavone * 4'-methyl-alpinumisoflavone * 5,3′,4′-trihydroxy-2″,2″-dimethylpyrano (5″,6″:7,8) isoflavone - has antifungal properties, and is from the plant species ficus tikoua Bur. The enzyme monoprenyl isoflavone epoxidase produces a dihydrofurano pyranoisoflavone derivative from 7-O-methylluteone. Pyranoflavonols Karanjachromene References Flavonoids {{aromatic-stub ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Pyran In chemistry, pyran, or oxine, is a six-membered heterocyclic, non-aromatic ring, consisting of five carbon atoms and one oxygen atom and containing two double bonds. The molecular formula is C5H6O. There are two isomers of pyran that differ by the location of the double bonds. In 2''H''-pyran, the saturated carbon is at position 2, whereas, in 4''H''-pyran, the saturated carbon is at position 4. 4''H''-Pyran was first isolated and characterized in 1962 via pyrolysis of 2-acetoxy-3,4-dihydro-2''H''-pyran. It was found too unstable, particularly in the presence of air. 4''H''-pyran easily disproportionates to the corresponding dihydropyran and the pyrylium ion, which is easily hydrolyzed in aqueous medium. Although the pyrans themselves have little significance in chemistry, many of their derivatives are important biological molecules, such as the pyranoflavonoids. The term pyran is also often applied to the saturated ring analog, which is more properly referred to as tetrahydrop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Alpinumisoflavone Alpinumisoflavone is a pyranoisoflavone, a type of isoflavone. It can be found in the bark of ''Rinorea welwitschii''. It can also be found in the molluscicide plant '' Millettia thonningii'' and is thought to be an antischistosomal Schistosomiasis, also known as snail fever, bilharzia, and Katayama fever, is a disease caused by parasitic flatworms called schistosomes. The urinary tract or the intestines may be infected. Symptoms include abdominal pain, diarrhea, bloody ... agent since it has been shown to kill the snails which transmit the schistosomiasis and also the larvae of the parasite itself. References Pyranoisoflavones {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Monoprenyl Isoflavone Epoxidase In enzymology, a monoprenyl isoflavone epoxidase () is an enzyme that catalyzes the chemical reaction :7-O-methylluteone + NADPH + H+ + O2 \rightleftharpoons dihydrofurano derivatives + NADP+ + H2O The 4 substrates of this enzyme are 7-O-methylluteone, NADPH, H+, and O2, whereas its 3 products are dihydrofurano pyranoisoflavone derivative, NADP+, and H2O. This enzyme belongs to the family of oxidoreductases, specifically those acting on paired donors, with O2 as oxidant and incorporation or reduction of oxygen. The oxygen incorporated need not be derive from O miscellaneous. The systematic name A systematic name is a name given in a systematic way to one unique group, organism, object or chemical substance, out of a specific population or collection. Systematic names are usually part of a nomenclature. A semisystematic name or semitrivial ... of this enzyme class is 7-O-methylluteone,NADPH:O2 oxidoreductase. Other names in common use include monoprenyl isoflavone monooxyg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Karanjachromene Karanjachromene is a pyranoflavonol, a type of flavonol. It is a fluorescent pyranoflavonoid isolated from the seed oil of ''Millettia pinnata ''Millettia pinnata'' is a species of tree in the pea family, Fabaceae, native to eastern and tropical Asia, Australia, and Pacific islands. It is often known by the synonym '' Pongamia pinnata''. Its common names include Indian beech and Pongam ...''.Isolation and Crystal Structure of Karanjachromene. Naghmana Rashid, Muhammad S. A. Abbasi, Muhammad K. Tahir, Nurdiyana M. Yusof and Bohari M. Yamin, Analytical Sciences: X-ray Structure Analysis Online, Vol. 24 (2008) p.x21, References Flavonols Pyranochromenes Phenol ethers {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]