JP5475938B2 - リパーゼ阻害活性を有する新規化合物 - Google Patents
リパーゼ阻害活性を有する新規化合物 Download PDFInfo
- Publication number
- JP5475938B2 JP5475938B2 JP2004182471A JP2004182471A JP5475938B2 JP 5475938 B2 JP5475938 B2 JP 5475938B2 JP 2004182471 A JP2004182471 A JP 2004182471A JP 2004182471 A JP2004182471 A JP 2004182471A JP 5475938 B2 JP5475938 B2 JP 5475938B2
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- Prior art keywords
- gallate
- lipase
- fat
- tea
- inhibitory activity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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Images
Classifications
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- A—HUMAN NECESSITIES
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- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/335—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
- A61K31/35—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having six-membered rings with one oxygen as the only ring hetero atom
- A61K31/352—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having six-membered rings with one oxygen as the only ring hetero atom condensed with carbocyclic rings, e.g. methantheline
- A61K31/353—3,4-Dihydrobenzopyrans, e.g. chroman, catechin
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D407/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00
- C07D407/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00 containing three or more hetero rings
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F3/00—Tea; Tea substitutes; Preparations thereof
- A23F3/16—Tea extraction; Tea extracts; Treating tea extract; Making instant tea
- A23F3/163—Liquid or semi-liquid tea extract preparations, e.g. gels, liquid extracts in solid capsules
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F5/00—Coffee; Coffee substitutes; Preparations thereof
- A23F5/24—Extraction of coffee; Coffee extracts; Making instant coffee
- A23F5/243—Liquid, semi-liquid or non-dried semi-solid coffee extract preparations; Coffee gels; Liquid coffee in solid capsules
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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Description
製造方法
本発明の化合物は、epigallocatechin-3-O-gallateをポリフェノールオキシダーゼで酸化重合させて得ることができる。出発物質epigallocatechin-3-O-gallateは公知であり、市販されているが、緑茶、紅茶、ウーロン茶等の天然材料から抽出して得ることもできる。酸化重合に用いるポリフェノールオキシダーゼは、例えば茶葉から実施例1に記載した方法で抽出して調製できるが、epigallocatechin-3-O-gallateからoolongtheanin-3’-O-gallate (OTNG)への酸化重合を触媒できるものであれば、茶葉由来のものに限定されず、例えばホースラディッシュ由来の酵素が使用できる。
リパーゼ阻害活性測定方法
本発明の化合物は、リパーゼ、特に膵リパーゼに対する強い阻害作用を有する。その阻害活性は、実施例2に具体的に記載する方法で測定できる。
リパーゼ阻害剤
本発明の化合物は、単味でまたは溶媒や固体担体とともにリパーゼ阻害剤として使用することが可能である。溶媒または担体は、下記飲食料および/または医薬品としての使用を考えて、食品としてまたは医薬品として安全に使用できるものであることが好ましい。本発明のリパーゼ阻害剤は種々の用途を有し、例えば試験研究用、中性脂肪の蓄積を予防するための食品、医薬品の有効成分としての使用が例示される。
oolongtheanin-3’-O-gallate含有飲食料
本発明の化合物または該化合物を含むリパーゼ阻害剤を、リパーゼ阻害活性成分として飲食料に添加して、食事からの脂肪分の摂取に伴う血中中性脂肪の望ましくない上昇を防止し、および/または上昇した血中中性脂肪を低減させることができる。飲食料の好ましい例は、日常的に摂取する飲食料、例えば、緑茶、麦茶、ウーロン茶、紅茶、コーヒー、スポーツドリンク、飲料水、調味料、ドレッシングである。しかし飲食料は、通常食するものであればよく、清涼飲料、カクテル、ビール、ウイスキー、焼酎、ワイン、清酒、調味料、ドレッシング、味付け米、加工食品、インスタント食品、レトルト食品、チョコレート、生クリーム、洋菓子、乳製品、健康食品、サプリメント等であってもよい。
oolongtheanin-3’-O-gallate含有医薬品
本発明の化合物またはリパーゼ阻害剤は、食事由来の脂肪の吸収を抑制し、血中中性脂肪の望ましくない上昇を防止および/または低下させるための薬剤の有効成分としても使用できる。好ましい薬剤は、経口投与される薬剤であり、その例として、ドリンク剤、錠剤、カプセル剤、顆粒剤、散剤、キャンデー、ドロップ剤等があげられる。薬剤に含まれる本発明の化合物の量は、1回服用量当たり、0.1mg〜1000mgである。
酵素の調製
茶葉品種・京研129号(京都府立茶業研究所より供与)600gを液体窒素中で粉砕し、抽出用緩衝液(0.01M KH2PO4と0.02M K2HPO4によりpH7.0に調整)1800mlとポリアミド300mlを加え撹拌後、ガーゼで濾過した。ろ液を8000rpmで20分間遠心分離した。上清1500mlにあらかじめ-20℃に冷却したアセトン1500mlを加え撹拌後、4℃で1時間静置した。この溶液を8000rpmで4℃、20分間遠心分離し、白色の沈殿を得た。この沈殿を反応用緩衝液(0.01Mクエン酸と0.02M H2PO4でpH5.6に調整)600mlに溶解し酵素溶液とした。
酵素反応
酵素溶液600mlにepigallocatechin-3-O-gallate(和光純薬工業株式会社)を600mgと8.8mMのH2O2を加え、攪拌後、32℃で反応を行った。3時間後に、600mlの1%トリフルオロ酢酸(TFA)を含む90%アセトニトリルを加え反応を停止した。この溶液を水で5倍希釈し、吸着樹脂HP-20(1000ml、三菱化学株式会社)に負荷し、水洗い後、2000mlの0.1%TFAを含む90%アセトニトリルで反応生成物を溶出し、減圧濃縮後、凍結乾燥した。反応物は以下の分取HPLCにより精製した。
精製
カラム: Develosil ODS-UG-5(50mmφ×500mm,野村化学)
移動相: A: 0.05%TFA/H2O、B:90%CH3CN,0.05%TFA
検出:A280nm
流速:32ml/min
グラジエント:B20%からB50%のリニアグラジエント溶出を100分間行った。
カラム: Develosil C30-UG-5(20mmφ×250mm,野村化学)
移動相:A:0.1%TFA/H2O、B:90%CH3CN,0.1%TFA
検出:A280nm
流速:6ml/min
グラジエント:B10%からB40%のリニアグラジエント溶出を40分間行った。このクロマトグラフィーにより溶出時間34分にoolongtheanin-3’-O-gallateが25mg得られた。
1H NMR, 13C NMR, 1H[13C]-HSQC, 1H[13C]-HMBC, TOCSY, および DQF-COSY は、 DMX-750 (BRUKER BIOSPIN)でCD3ODに溶解して測定した。図2に1H NMR、図3に13C NMRを示した。構造式は図4に示した。
実施例2 リパーゼ阻害活性の測定
リパーゼ活性の測定は、基質に蛍光性の4−メチルウンベリフェロンのオレイン酸エステル(4-UMO)を使用し、反応によって生成した4−メチルウンベリフェロンの蛍光を測定することにより実施した。
Claims (3)
Priority Applications (11)
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JP2004182471A JP5475938B2 (ja) | 2004-06-21 | 2004-06-21 | リパーゼ阻害活性を有する新規化合物 |
SG200904245-8A SG153840A1 (en) | 2004-06-21 | 2005-06-20 | Novel compound having inhibitory effect on lipase |
US11/630,132 US20110118344A1 (en) | 2004-06-21 | 2005-06-20 | Novel compound having inhibitory effect on lipase |
PCT/JP2005/011258 WO2005123725A1 (ja) | 2004-06-21 | 2005-06-20 | リパーゼ阻害活性を有する新規化合物 |
EP05751348.3A EP1783127B1 (en) | 2004-06-21 | 2005-06-20 | Polyphenols from Oolong tea having inhibitory effect on lipase |
ES05751348T ES2571131T3 (es) | 2004-06-21 | 2005-06-20 | Polifenoles de té Oolong que tienen efecto inhibidor sobre la lipasa |
CN2005800279080A CN101094851B (zh) | 2004-06-21 | 2005-06-20 | 具有脂肪酶抑制活性的新型化合物 |
TW094120625A TWI385166B (zh) | 2004-06-21 | 2005-06-21 | With novel compounds that block lipase activity |
KR1020077001240A KR101342288B1 (ko) | 2004-06-21 | 2007-01-18 | 리파아제 저해 활성을 갖는 신규 화합물 |
HK08102623.3A HK1108889A1 (en) | 2004-06-21 | 2008-03-06 | Novel compound having lipase inhibitory activity |
US13/336,070 US20120329862A1 (en) | 2004-06-21 | 2011-12-23 | Novel compound having inhibitory effect on lipase |
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JP2004182471A JP5475938B2 (ja) | 2004-06-21 | 2004-06-21 | リパーゼ阻害活性を有する新規化合物 |
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EP (1) | EP1783127B1 (ja) |
JP (1) | JP5475938B2 (ja) |
KR (1) | KR101342288B1 (ja) |
CN (1) | CN101094851B (ja) |
ES (1) | ES2571131T3 (ja) |
HK (1) | HK1108889A1 (ja) |
SG (1) | SG153840A1 (ja) |
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JP5238993B2 (ja) * | 2007-09-26 | 2013-07-17 | サントリー食品インターナショナル株式会社 | 茶抽出物、茶飲料及びそれらの製造方法 |
JP5579789B2 (ja) * | 2007-09-26 | 2014-08-27 | サントリー食品インターナショナル株式会社 | 茶抽出物、茶飲料及びそれらの製造方法 |
JP5282340B2 (ja) * | 2008-03-13 | 2013-09-04 | 長岡香料株式会社 | 天然素材の抗酸化作用および/またはリパーゼ阻害活性を増強させる方法、ならびに当該活性が増強された天然素材 |
WO2010073404A1 (ja) | 2008-12-26 | 2010-07-01 | 株式会社ニチレイバイオサイエンス | カシューアップルのプロアントシアニジン、プロアントシアニジン含有組成物、およびその用途 |
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CN107304320B (zh) * | 2016-04-22 | 2021-08-13 | 马日专业涂层私人有限公司 | 有机亲水性涂料组合物、亲水性皮膜和换热器用铝材 |
JP6967261B2 (ja) * | 2017-03-01 | 2021-11-17 | 国立大学法人九州大学 | メタボリックシンドロームの予防又は改善用食品組成物及び医薬組成物 |
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TW200602343A (en) | 2006-01-16 |
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WO2005123725A9 (ja) | 2007-08-09 |
HK1108889A1 (en) | 2008-05-23 |
CN101094851A (zh) | 2007-12-26 |
EP1783127A4 (en) | 2010-06-23 |
KR101342288B1 (ko) | 2013-12-20 |
CN101094851B (zh) | 2011-01-12 |
EP1783127A1 (en) | 2007-05-09 |
WO2005123725A1 (ja) | 2005-12-29 |
SG153840A1 (en) | 2009-07-29 |
EP1783127B1 (en) | 2016-03-30 |
KR20070027710A (ko) | 2007-03-09 |
US20120329862A1 (en) | 2012-12-27 |
JP2006001909A (ja) | 2006-01-05 |
ES2571131T3 (es) | 2016-05-24 |
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