29043-07-0Relevant articles and documents
Highly oxygenated flavonoids from Murraya paniculata
Kinoshita, Takeshi,Firman, Kurnia
, p. 1207 - 1210 (1996)
Eight highly oxygenated flavones, including one new compound, were isolated from the leaves of an Indonesian medicinal plant, Murraya paniculata. Seven of them were identified as 5-hydroxy-6,7,8,3',4',5'- hexamethoxyflavone (gardenin A), 5,3'-dihydroxy-6,7,8,4',5'- pentamethoxyflavone (gardenin C), 6,7,8,4'-tetra-methoxy-5,3',5'- trihydroxyflavone (gardenin E), 5-hydroxy-6,7,8,3',4'-pentamethoxyflavone (5- O-desmethylnobiletin), 6,7,8,3',4',5'-hexamethoxyflavone, 5-hydroxy- 6,7,3',4',5'-pentamethoxyflavone (umhengerin), 5,3'-dihydroxy-6,7,4',5'- tetramethoxyflavone either by direct comparison with authentic samples or by comparing their melting points and spectroscopic data with those reported in the literature. The new compound was elucidated as 5,3',5'-trihydroxy- 6,7,4'-trimethoxyflavone on the basis of chemical and spectroscopic studies.
ISOLATION AND SYNTHESIS OF TWO NEW FLAVONES FROM CONOCLINIUM COELESTINUM
Seringolam, Werner Herz,Govindan, V.,Riess-Maurer, Ingrid,Kreil, B.,Wagner, Hildebert,et al.
, p. 669 - 672 (1980)
Two new flavones, 3',4'-methylenedioxy-5,6,7,8,5'-pentamethoxyflavone and 5,7,4'-trihydroxy-6,3',5'-trimethoxyflavone, have been isolated from Conoclinium coelestinum.Final structure proof was accomplished by synthesis.Key Word Index - Conoclinium coelestinum; Compositae; Eupatorieae; flavones; 3',4'-methylenedioxy-5,6,7,8,5'-pentamethoxyflavone; 5,7,4'-trihydroxy-6,3',5'-trimethoxyflavone.
Synthesis and anti-proliferative activities of 5,6,7-trimethoxyflavones and their derivatives
Li, Wei,Liu, Kexiong,Su, Liang,Wang, Qiuan
, (2021/08/12)
A series of 5,6,7-trimethoxyflavones 1a-1g and their derivatives 2a-2g, 3a-3d, 4 and 5, including the natural products 5,6,7-trimethoxy-4’-hydroxyflavone (1a), 5,6,7,3’,4’ -pentamethoxyflavone (sinensetin, 1 b), 5,6,7-trimethoxy-3’,4’-methyl enedioxy flavone (1c), 5,6,7,3’-tetramethoxy-4,5’-methylenedioxyflavone (1e), 5,6,7, 3’,4’,5’-hextamethoxyflavone (1 g), 5-hydroxy-3,4,2’,3’,4’-pentamethoxy chal-cone (2 b), 5,4’-dihydroxy-6,7-dimethoxy flavone (cirsimaritin, 3a) and 5-hydroxy-6,7,3’, 4’-tetramethoxyflavone (5-demethylsinensetin, 3 b), 3,5,6,7,3’,4’-hexamethoxyflavone (3-methoxysinensetin, 4) and 5’-hydroxy-3,6,7,3’,4’-pentamethoxyflavone (5) were synthesized. Their anti-proliferative activity in?vitro was evaluated against a panel of four human cancer cell lines (Aspc-1, HCT-116, HepG-2 and SUN-5) by the CTG assay. The results showed that most of the synthetic compounds exhibited moderate to high anti-proliferative activities. In particular, compound 3c possess IC50 (5.30 μM) values below 10 μM against Aspc-1 cells and are worthy of further investigation.
Use of flavone and flavanone derivatives in preparation of sedative and hypnotic drugs
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Page/Page column 48; 49; 50; 52, (2017/07/01)
Disclosed is a use of flavones derivatives and flavanone derivatives in preparation of sedative and hypnotic drugs.
USE OF FLAVONE AND FLAVANONE DERIVATIVES IN PREPARATION OF SEDATIVE AND HYPNOTIC DRUGS
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Paragraph 0223; 0238, (2015/07/22)
Disclosed is a use of flavones derivatives and flavanone derivatives in preparation of sedative and hypnotic drugs.
Flavonoids with M1 muscarinic acetylcholine receptor binding activity
Swaminathan, Meyyammai,Chee, Chin Fei,Chin, Sek Peng,Buckle, Michael J. C.,Rahman, Noorsaadah Abd.,Doughty, Stephen W.,Chung, Lip Yong
, p. 8933 - 8948 (2014/08/05)
Muscarinic acetylcholine receptor- Active compounds have potential for the treatment of Alzheimer's disease. In this study, a series of natural and synthetic flavones and flavonols was assayed in vitro for their ability to inhibit radioligand binding at human cloned M1 muscarinic receptors. Several compounds were found to possess competitive binding affinity (K i = 40-110 μM), comparable to that of acetylcholine (Ki = 59 μM). Despite the fact that these compounds lack a positively-charged ammonium group under physiological conditions, molecular modelling studies suggested that they bind to the orthosteric site of the receptor, mainly through non-polar interactions.
POLYOXYGENATED FLAVONES FROM AGERATUM CONYZOIDES
Vyas, Ashok V.,Mulchandani, Newand B.
, p. 2625 - 2628 (2007/10/02)
Key Word Index - Ageratum conyzoides; Asteraceae; 5,6,7-trimethoxy-3',4'-methylenedioxyflavone; 5,6,7,3'-tetramethoxy-4'-hydroxyflavone; 5,6,7,3',5'-pentamethoxy-4'-hydroxyflavone; polyoxygenated flavones.Twelve polyoxygenated flavones have been isolated from Ageratum conyzoides, three of which are new natural flavones, namely ageconyflavones A (5,6,7-trimethoxy-3',4'-methylenedioxyflavone), B (5,6,7,3'-tetramethoxy-4'-hydroxyflavone) and C (5,6,7,3',5'-pentamethoxy-4'-hydroxyflavone).The other nine compounds were identified as linderoflavone B, eupalestin, nobiletin, 5'-methoxynobiletin, 5,6,7,5'-tetramethoxy-3',4'-methylenedioxyflavone, sinensetin, 5,6,7,3',4',5'-hexamethoxyflavone, 5,6,7,8,3'-pentamethoxy-4'-hydroxyflavone and 5,6,7,8,3',5'-hexamethoxy-4'-hydroxyflavone.
Synthetic Studies on the Flavone Derivatives. XII. Synthesis of 2',3',5'- and 3',4',5'-Trioxygenated Flavones
Iinuma, Munekazu,Tanaka, Toshiyuki,Matsuura, Shin
, p. 2296 - 2300 (2007/10/02)
Two unusual flavones, 5,5'-dihydroxy-2',3',6,7-tetramethoxyflavone (1) from Gardenia cramerii and 4',5-dihydroxy-3',5',6,7-tetramethoxyflavone (6) from Artemisia mesatlantia, and their position isomers were synthesized to investigate the structural correlation in terms of spectral data.The structure of the flavone from G. cramerii is discussed.Keywords: 5,5'-dihydroxy-2',3',6,7-tetramethoxyflavone; 2',5-dihydroxy-3',5',6,7-tetramethoxyflavone; 5-hydroxy-2',3',5',6,7-pentamethoxyflavone; 3',5-dihydroxy-4',5',6,7-tetramethoxyflavone; 4',5-dihydroxy-3',5',6,7-tetramethoxyflavone; 5-hydroxy-3',4',5',6,7-pentamethoxyflavone.