CAS: 970-74-1; (2R,3R)-2-(3,4,5-Trihydroxyphenyl)Chromane-3,5,7-Triol

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CAS号332386-74-0 (-)-(2R,3R)-cis... | CAS号1449477-27-3 5-((S)-hydroxy(... | CAS号1333874-50-2 alhacin | CAS号108-98-5 硫酚 | CAS号1707-75-1 1,1-二苯基-2-苦味酰肼 | CAS号979-92-0 S-腺苷-L-高半胱氨酸 | CAS号28543-07-9 茶黄素 3'-没食子酸酯 | CAS号102208-16-2 epitheaflagallin | CAS号569-77-7 红陪酚 | CAS号31129-95-0 5-(3-羟基苯基)戊酸 | CAS号74356-41-5 3,5-DIHYDROXY-B... | CAS号1204316-08-4 5-(3,5-dihydrox... | CAS号4670-05-7 茶黄素 | CAS号302776-47-2 theanaphthoquinone

在 镍 氢气体系中,化学反应生成 (-)-表没食子儿茶素
参考文献:Dimeric Prodelphinidins From Limonium Gmelinii Roots. Iii.
标题:Dimeric Prodelphinidins From Limonium Gmelinii Roots. Iii.
摘要:通过聚酰胺吸附色谱法从limonium Gmelinii根的水醇提取物的乙酸乙酯部分中分离出两种二聚原花青素,分别鉴定为2R,3R,4R-(-)-表没食子儿茶素-(4β-> 8)-2R,3R-(-)-表没食子儿茶素-3-O-没食子酸酯和2R,3R,4R-(-)-表没食子儿茶素-(4β-> 8)-(-)-2R,3R,3,5,7,3',4',6'-六羟基黄烷.前者首次从海薰衣草中分离得到,而后者是一种新化合物.
DOI:10.1007/s10600-006-0068-8

专利信息

专利号:US-2004266699-A1
优先权日:2001-10-04
标 题 :Flavonoid compounds capable of modifying the dynamic and/or physical state of biological membranes and to stimulate the endogenous synthesis of stress proteins in eukaryotic cells, relative synthesis and their use
发明人：PORTA AMALIA
摘要:The invention relates to flavonoids compounds of formula (I) and (II) capable of modifying the dynamic and/or physical state of biological membranes and to stimulate the endogenous synthesis of stress proteins in eukaryotic cells. Such compounds are molecules of plant origin or synthetic. The invention also describes a method to identify, purify and chemically synthesize such flavonoid compounds and test their efficacy through their capacity to stimulate the transcription of stress genes and as a consequence, to interact with biological membranes with alteration of their relative physical state. Such compounds and corresponding pharmaceutically acceptable derivatives and/or salts have applications in the areas of pharmaceuticals, more specifically in cosmetics and dermatology, for all those afections related to an alteration of the expression of stress genes.

专利号:WO-2024220674-A1
优先权日:2023-04-18
标题:Timescale-guided microfluidic synthesis of polyphenol-iron iii network nanocapsules of hydrophobic drugs
发明人：YEO YOON; HAN BUMSOO; SHEN YINGNAN
权利人:PURDUE RESEARCH FOUNDATION
摘要:A scalable method of continuous microfluidic synthesis of tannic acid-iron III (TA-FeIII) network (TFN) nanocapsules of a hydrophobic drug; a scalable method of continuous microfluidic synthesis of epigallocatechin-3-gallate iron III (EGCG-FeIII) network, (EFN) nanocapsules; hydrophobic drug nanocapsules synthesized in accordance with the method; and a method of administering a hydrophobic drug to a patient in need thereof by administering to the patient the hydrophobic drug nanocapsules.

专利号:US-2006128930-A1
优先权日:2004-12-03
标题 :Synthesis of sterically hindered phenol based macromolecular antioxidants
发明人：DHAWAN ASHISH; CHOLLI ASHOK L
权利人:DHAWAN ASHISH; CHOLLI ASHOK L
摘要:Disclosed is a method for the synthesis of sterically hindered polymeric antioxidants based on phenol type antioxidant monomers. The method includes polymerizing and alkylating a phenol containing monomer represented by the following structural formula: n n nto produce a sterically hindered polymeric macromolecular antioxidant. X, R 10 and q are as defined herein. The disclosed method is a simple, direct and economical process for the synthesis of sterically hindered polymeric macromolecular antioxidants.

专利号:US-7678877-B2
优先权日:2004-12-03
标题 :Process for the synthesis of polyalkylphenol antioxidants
发明人：YANG SUIZHOU; CHOLLI ASHOK L
权利人:POLNOX CORP
摘要:Disclosed is a method for the synthesis of sterically hindered polymeric antioxidants based on phenol type antioxidant monomers. The method includes partially etherifying, polymerizing and thermally rearranging a phenol containing monomer represented by the following structural formula: n nto produce a sterically hindered polymeric macromolecular antioxidant. X, R 10 and q are as defined herein. The disclosed method is a simple, direct and economical process for the synthesis of sterically hindered polymeric macromolecular antioxidants.

专利号:US-9556140-B2
优先权日:2013-01-26
标 题 :Approach for synthesis of catechins
发明人：DUGAR SUNDEEP; MAHAJAN DINESH; RAI KUMAR SANTOSH; TRIPATHI VINAYAK; PATIL ISHWAR RAKESH
权利人:SPHAERA PHARMA PRIVATE LTD
摘要:A process for synthesis of enatiomerically pure or enatiomerically enriched or racemic mixture of (+ and/or −) epicatechin and its intermediates, comprising the steps of: (i) obtaining penta-protected quercetin; (ii) reducing the penta-protected quercetin obtained from step (i); (iii) optionally deprotecting the compound of step (ii); (iv) reducing the compound obtained from step (ii) or step (iii) in the presence of a chiral/achiral reducing agent to obtain a chiral intermediate; (v) deprotecting and/or hydrogenation of the chiral intermediate obtained from step (iv) to obtain (−)-epicatechin; (vi) optionally simultaneously deprotecting and by drogenation of the compound obtained from step (ii) to obtain racemic epicatechin.

专利号:US-2021315830-A1
优先权日:2018-08-31
标题 :A curcumin loaded stabilized polymeric nanoparticles with increased solubility and photo-stability and a green process for the synthesis thereof
发明人：ACHARYA AMITABHA; KUMARI AVNESH; GULIANI ANIKA; KUMAR SANJAY
权利人:COUNCIL SCIENT IND RES
摘要:The present invention explored PLGA NPs synthesis using plant extracts as surfactants by nanoprecipitation process. PLGA NPs synthesized using Camellia sinensis, Dendrocalamus hamiltonii, Ficus palmata and Rubus ellipticus leaf extracts were further explored for encapsulation, controlled and sustained release of well-known antioxidant molecule, curcumin. This plant extract based nanoprecipitation process for the synthesis of PLGA NPs can be further explored for encapsulation of many other antioxidant molecules of therapeutic importance.