黄酮置于hof* Ch3Cn体系中,化学反应 0.02H,以91%的收率获得产物3-羟基黄酮 参考文献:An Easy Way For Constructing Hard-To-Make Epoxides Employing Hof.ch3Cn 标题:An Easy Way For Constructing Hard-To-Make Epoxides Employing Hof.ch3Cn 摘要:Hof-Ch2Cn,A Very Efficient Oxygen Transfer Agent,Was Reacted With Various Types Of Difficult-To-Epoxidize Olefine. All Products Were Obtained In A Single-Step,Fast And High Yield Reaction. (C) 2004 Elsevier Ltd. All Rights Reserved. DOI:10.1016/j.Tetlet.2004.03.030
专利号:US-7816544-B2 优先权日:2004-03-23 标 题:Synthesis of rocaglamide natural products via photochemical generation of oxidopyrylium species 发明人:JONES II GUILFORD; GERARD BAUDOUIN; PORCO JR JOHN A 权利人:UNIV BOSTON 摘要:The present invention provides new strategies for the synthesis of compounds of the rocaglamide family and related natural products. In particular, the new biomimetic synthetic approach involves photochemical generation of an oxidopyrylium species from a 3-hydroxychromone derivative followed by 1,3-dipolar cycloaddition of the oxidopyrylium species to a dipolarophile. This approach can be used for the formation of adducts containing an aglain core structure. Methods for the conversion of aglain core structures to aglain, rocaglamide and forbaglin ring systems are also provided. The present invention also relates to the use of rocaglamide/aglain/forbaglin derivatives for the manufacture of medicaments for use in the treatment of cancer or cancerous conditions, disorders associated with cellular hyperproliferation, or NF-κB-dependent conditions.
专利号:WO-2025081225-A1 优先权日:2023-10-17 标 题 :Synthesis of polyphenols 发明人:TURLAND CADE LACHLAN; GROLMAN DAVID; BEHRENDORFF JAMES BRUCE YARNTON HAYCOCK; MORADI SHAYLI VARASTEH; THOMSON RAINE ELIZABETH STURT 权利人:Delica Therapeutics Pty Ltd 摘要:The present disclosure relates to polyphenols, including flavonoids, flavones and cannflavins, and methods of synthesising polyphenols. The present disclosure provides methods, enzymes and compositions that may be useful in the synthesis of polyphenols.
专利号:US-7605241-B2 优先权日:2005-01-10 标题 :Synthesis of inhibitors of p90Rsk 发明人:HECHT SIDNEY M; MALONEY DAVID J 权利人:UNIV VIRGINIA 摘要:The synthesis of the naturally occurring kaempferol glycoside SLO1O1-1, as well as analogs thereof, has been accomplished, as has its biochemical evaluation. SLO1O1-1 exhibits selective and potent p90 Rsk inhibitory activity at nanomolar concentrations without inhibiting the function of upstream kinases such as MEK, Raf, or PKC. The synthetic scheme of the invention verified the structural assignment of the natural product and has provided access to material sufficient for detailed biological evaluation.
专利号:US-8404088-B2 优先权日:2006-05-22 标 题:Asymmetric synthesis of rocaglamides via enantioselective photocycloaddition mediated by chiral bronsted acids 发明人:PORCO JR JOHN A; GERARD BAUDOUIN 权利人:PORCO JR JOHN A; GERARD BAUDOUIN; UNIV BOSTON 摘要:The present invention provides a new strategies for the synthesis of compounds of the rocaglamide family and related natural products. The synthetic approach generally involves photochemical generation of an oxidopyrylium species from a 3-hydroxychromone derivative followed by an enantioselective 1,3-dipolar cycloaddition of the oxidopyrylium species to a dipolarophile in the presence of a TADDOL derivative. This approach can be used for the formation of adducts containing an aglain core structure. Methods of the conversion of aglain core structures to aglain, rocaglamide and forbaglin ring systems are also provided. The present invention also relates to the use of rocaglamide/aglain/forbaglin derivatives for the manufacture of medicaments for use in the treatment of cancer or cancerous conditions, disorders associated with cellular hyperproliferation, or NF-κB-dependent conditions.
专利号:US-2025305010-A1 优先权日:2022-05-08 标题:Lipid compositions and methods of producing same 发明人:KEREN TOMER; ELLA EZRA; ARGOV-ARGAMAN NURIT 权利人:WILK TECH INTERNATIONAL LTD; YISSUM RES DEV CO OF HEBREW UNIV JERUSALEM LTD 摘要:Provided is a method of increasing lipid synthesis or accumulation in mammary epithelial cells (MECs) culture and optionally secretion therefrom. The method comprising contacting the MECs with an LXR agonist in the presence of a fatty acid to thereby increase lipid synthesis or accumulation and optionally secretion of lipids. Also provided is a method of producing synthetic fat globules, the method comprising: (a) isolating lipid droplets from cells in culture; (b) encapsulating the droplets with a lipid bilayer, thereby producing synthetic fat globules. Also provided are compositions produced thereby.
专利号:US-2008311580-A1 优先权日:2004-03-09 标 题:Novel genes encoding proteins involved in proanthocyanidin synthesis 发明人:ABRAHAMS SHARON; ASHTON ANTHONY RICHARD; TANNER GREGORY JOHN; LARKIN PHILIP JOHN 权利人:COMMW SCIENT IND RES ORG 摘要:This inventions provides an isolated protein or polypeptide having activity in the synthesis of proanthocyanidin (PA) polymer from epicatechin or catechin in plants, and which is not naturally regulated by the TT2 or TT8 regulators, or a fragment comprising at least about 10 contiguous amino acids derived from said protein or polypeptide, particularly TDS1, TDS2, TDS3, TDS4, TDS5, or TDS6 protein, or fragment thereof. n Also provided are nucleic acid encoding such proteins or polypeptides; plant cells and plants containing and expressing such nucleic acids; antibodies that bind to such proteins or polypeptides; and related methods.