TWI469779B - Novel epigallocatechin gallate 4, and its vascular endothelial function enhancer - Google Patents
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- TWI469779B TWI469779B TW98129103A TW98129103A TWI469779B TW I469779 B TWI469779 B TW I469779B TW 98129103 A TW98129103 A TW 98129103A TW 98129103 A TW98129103 A TW 98129103A TW I469779 B TWI469779 B TW I469779B
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- 238000011835 investigation Methods 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 230000037356 lipid metabolism Effects 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 208000010125 myocardial infarction Diseases 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- BJFGFQSYHAXQPO-UHFFFAOYSA-N oolonghomobisflavan a Chemical compound OC1=C(O)C(O)=CC(C2C(CC3=C(O)C=C(O)C(CC=4C=5OC(C(OC(=O)C=6C=C(O)C(O)=C(O)C=6)CC=5C(O)=CC=4O)C=4C=C(O)C(O)=C(O)C=4)=C3O2)OC(=O)C=2C=C(O)C(O)=C(O)C=2)=C1 BJFGFQSYHAXQPO-UHFFFAOYSA-N 0.000 description 1
- FKRUMFFNBGSGGM-UHFFFAOYSA-N oolonghomobisflavan b Chemical compound OC1=C(O)C(O)=CC(C2C(CC3=C(O)C(CC=4C=5OC(C(OC(=O)C=6C=C(O)C(O)=C(O)C=6)CC=5C(O)=CC=4O)C=4C=C(O)C(O)=C(O)C=4)=C(O)C=C3O2)OC(=O)C=2C=C(O)C(O)=C(O)C=2)=C1 FKRUMFFNBGSGGM-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 230000036542 oxidative stress Effects 0.000 description 1
- 150000002923 oximes Chemical class 0.000 description 1
- 229940116369 pancreatic lipase Drugs 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 229940127557 pharmaceutical product Drugs 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 235000013824 polyphenols Nutrition 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002062 proliferating effect Effects 0.000 description 1
- 239000003586 protic polar solvent Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000003753 real-time PCR Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
- 239000012748 slip agent Substances 0.000 description 1
- 208000010110 spontaneous platelet aggregation Diseases 0.000 description 1
- 235000011496 sports drink Nutrition 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 239000003765 sweetening agent Substances 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
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- 230000009885 systemic effect Effects 0.000 description 1
- 108010038851 tannase Proteins 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- 230000024883 vasodilation Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- 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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- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Preparation or treatment thereof
- A23L2/52—Adding ingredients
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- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
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Description
本發明係有關新穎的表沒食子兒茶素沒食子酸酯4聚物化合物、該化合物之製造方法,及含該化合物之飲食品及醫藥組成物,特別係具有血管內皮功能改善作用之飲食品及醫藥組成物。
代謝性症候群係由於生活習慣及遺傳性的因素,結果發生內臟脂肪蓄積量增加,胰島素阻抗被誘發而出現脂質代謝異常、高血壓、葡萄糖耐受不良等症狀,轉變為容易引起血管病變之病態。而該病態最終引起心肌梗塞、腦梗塞等動脈硬化症,最壞的情況下有時足以致命。
隱喻在認為胰島素阻抗是起因於代謝性症候群時,血管內皮細胞的功能會被損害,其原因目前被指向是在血管內皮細胞的一氧化氮(以下簡寫為NO)發生系統異常(非專利文件1)。
NO係藉由血管內皮細胞中內皮型NO合成酵素(以下簡寫為eNOS),由L-精胺酸與氧分子所生成。來自血管內皮的血管鬆弛因子NO,其任務主要是對增殖性變化、發炎性變化、血小板凝集、氧化壓力的抑制作用,而於動脈硬化、高血脂症等各種危險因子存在下,發現NO的產生降低及作用不足(非專利文件2)。特別係於代謝性症候群伴隨胰島素阻抗的狀態下,已知eNOS的輔酶四氫生喋呤(以下簡寫作BH4
)產生酵素之GTP環水解酶I(以下簡寫作GTP-CHl)的活性降低(非專利文件1)。NO產生降低、產生不足的機轉相當複雜,但已知可藉由L-精胺酸的代謝物asymmetric dimethylarginine(以下簡寫作ADMA)抑制eNOS的活性。另外,於eNOS活性已降低之狀態下,氧分子會優先被NADPH氧化酶代謝而產生活性氧,進而招致血管內皮功能降低(非專利文件3)。反之血管內皮細胞可藉由產生ADMA分解酵素之dimethylarginine dimethylaminohydrolase 2(以下簡寫作DDAH2)而保持血管內皮細胞功能良好。另外亦可藉由使存在於血管內皮細胞之NADPH氧化酶的活性降低,而保持良好的血管內皮細胞功能。
具有血管內皮功能改善效果之食品素材已知有綠茶所含之(-)-表沒食子兒茶素-3-O-沒食子酸酯(以下亦稱做EGCG)(非專利文件4)。另外雖然目前亦顯示藉由攝取紅茶可改善人類上臂的血流依賴性血管擴張反應(非專利文件5),及使用紅茶萃取物進行in vitro檢討時發現eNOS被促進活性化(非專利文件6),但該等活性成份尚未被解明。另外,至今亦尚未進行有關烏龍茶及其成份之檢討。
藉由烏龍茶原有的發酵過程而生成之EGCG聚合物,其2聚物(oolonghomobisflavanA以及oolonghomobisflavanB)(非專利文件7)與3聚物(專利文件1)已經分離、鑑定,且該等化合物被報告為具有非常強的抑制胰脂肪酶活性(非專利文件8、專利文件1)。
專利文件1:國際公開第2005/116005號
非專利文件1:Folia Pharmacol. Jpn. Vol. 125:p285-290,2005
非專利文件2:Journal of clinical Investigation,vol. 95,p1747-1755,1995
非專利文件3:Endocrinology,vol. 148,p3773-3780,2007
非專利文件4:Journal of Biological Chemisty,vol. 279,p6190-6195,2004
非專利文件5:Circulation. Vol. 104,p151-156,2001
非專利文件6:Journal of Biological Chemisty,vol. 279,p46637-46643,2004
非專利文件7:Chem. Pharm. Bull. 37(12),3255-3263,1989
非專利文件8:J. Agric. Food Chem. 53,4593-4598(2005)
雖於非專利文件4中記載有EGCG之血管內皮功能改善效果,但於使用培養細胞進行的檢討,為使eNOS活性上升至少需要30~50μM之較高的濃度。另外於非專利文件5中,雖揭示有紅茶之血管內皮功能改善效果,但記載內容的是使人於4週間每日攝取900ml紅茶之情況與對照組進行比較,改善上臂的血流依賴性血管擴張反應。
如此EGCG之血管內皮功能改善效果雖有奏效,但其效果並不充分,為藉由攝取紅茶中所含之EGCG而獲得其效果,必須要攝取相對較多的紅茶等。另外,由於EGCG是苦味及澀味的原因,對於持續攝取會有香味上的問題,進而,大量攝取紅茶亦與大量攝取咖啡因等物質相聯繫,認為以維持血管內皮功能為目的而持續性地攝取並不適當。
本發明之目的係提供可持續攝取,且具有藉由增強來自血管內皮細胞的NO之作用等,而改善血管內皮功能的作用之化合物,進而為提供含有該相關化合物之飲食品。
為解決該等問題之發明者們,針對EGCG等具有色滿環之化合物所衍生之化合物進行檢討後,發現具有4個色滿環之新穎的化合物,較EGCG能夠達成更優異的改善血管內皮功能的作用,本發明遂至完成。
亦即本發明係如下所述。
1.一種以式(I)所示之化合物,或其鹽,
(式中R1
、R2
、R3
及R4
係分別為H或以式(A):
所示之基)。
2.如1之化合物、或其鹽,其係以式(II):
(式中R1
、R2
、R3
及R4
係與前述相同)所示。
3.如1之化合物、或其鹽,其係以式(III):
(式中R1
、R2
、R3
及R4
係與前述相同)所示。
4.如1~3中任一項之化合物或其鹽,其中R1
、R2
、R3
及R4
均係以式(A):
所示之基。
5.一種血管內皮功能改善劑,其係含有如1~4項中任一項之化合物或其鹽。
6.一種飲食品,其係經混合如1~4項中任一項之化合物或其鹽。
7.一種醫藥組成物,其係含有如1~4項中任一項之化合物或其鹽。
8.一種1~4項中任一項之化合物之製造方法,其係包含於酸存在下,使表沒食子兒茶素沒食子酸酯或表沒食子兒茶素與甲醛進行反應之步驟。
藉由將本發明之4聚物與飲食品混合,可提供以改善血管內皮功能及增進健康為目的之飲料或營養補充品。另外由於該等化合物與飲食品混合時不會損及香味,偏好性高,且由於其亦具優異的安全性,為維持血管內皮功能可持續性地攝取。
本發明係有關4個色滿環以亞甲基連結之以式(I)所示之新穎的EGCG 4聚物化合物、式(I)之化合物的製造方法、以及含式(I)之化合物之血管內皮功能改善劑、飲食品及醫藥組成物。以下針對本發明進行說明。
本發明以式(I)所示之EGCG 4聚物化合物係可根據下述方式進行製造。
可藉由將均以式(A)所示之R1
、R2
、R3
及R4
之基(沒食子酸酯基)之式(I)之化合物,與(-)-表沒食子兒茶素-3-O-沒食子酸酯於溶媒中,使其於在酸的存在下與甲醛進行反應而製造。
可使用於反應之溶媒可舉出例如甲醇、乙醇、正丙醇、異丙醇等醇類。針對溶媒之使用量並無別的限制,例如相對於1質量份之EGCG可使用20~200質量份之溶媒。
酸可使用鹽酸、硫酸及硝酸等無機酸,及蟻酸、醋酸等有機酸。針對酸的使用量無特別限制,例如相對於1莫耳之EGCG可使用0.01~2莫耳之酸。
甲醛則為例如相對於1莫耳之EGCG,可使用1~100莫耳。
反應溫度及時間依所使用的溶媒量而定,例如反應溫度為-10~50℃,反應時間為0.2~12小時,典型反應溫度為室溫(25℃左右)。
可藉由將R1
、R2
、R3
及R4
均為H(氫原子)之式(I)之化合物,取代(-)-表沒食子兒茶素-3-O-沒食子酸酯的是使用(-)-表沒食子兒茶素,與前述相同地使其與甲醛進行反應而製造。
於與甲醛之反應使用(-)-表沒食子兒茶素-3-O-沒食子酸酯或(-)-表沒食子兒茶素時,所得之式(I)之化合物,各色滿環第2位置之取代基與第3位置之取代基之相對立體配置為順式(cis)。
藉由使(-)-表沒食子兒茶素-3-O-沒食子酸酯或(-)-表沒食子兒茶素與甲醛進行反應而得之4聚物生成物,一般係含有介以亞甲基之色滿環聯結形式相異之式(II)、式(III)及式(Ⅳ)此3種化合物之至少2種化合物之4聚物生成物的混合物。故可藉由使用例如HP-20(三菱化學股份有限公司製)等苯乙烯系吸附樹脂,及藉由如Shephadex LH-20般之聚葡萄糖系樹脂之開放式管柱層析儀,以及高速液相層析儀(HPLC)等周知之純化方法,由該等混合物中,分離出式(II)、式(III)及式(Ⅳ)之各化合物。
R1
、R2
、R3
及R4
的1至4個為H之式(I)之化合物,尚可由R1
、R2
、R3
及R4
均為沒食子酸酯基之式(I)之化合物,藉由將沒食子酸酯基以水解方式去除而製造。該等水解可使用氫氧化鈉、氫氧化鉀等鹼性化合物之水溶液,或使用具有鞣酸酶活性之酵素等水解酵素而進行。
於該等水解一般係由R1
、R2
、R3
及R4
均為沒食子酸酯基之式(I)之化合物,去除掉1個、2個、3個或4個沒食子酸酯基,而使其成為複數種化合物之混合物。此時可藉由使用例如HP-20(三菱化學股份有限公司製)等苯乙烯系吸附樹脂,及藉由如Shephadex LH-20般之聚葡萄糖系樹脂之開放式管柱層析儀,以及高速液相層析儀(HPLC)等周知之純化方法,由該等混合物中分離出各化合物。
本發明另亦係有關式(I)之化合物之鹽。
該等鹽若為可由式(I)之化合物形成之鹽則無特別限制,但以醫藥許可之鹽為佳。
該等鹽可舉出例如式(I)之化合物之鋰鹽、鈉鹽、鉀鹽、鈣鹽及鎂鹽等,與週期表IA族或IIA族之金屬元素所形成之金屬鹽。該等金屬鹽可於例如式(I)之化合物之羥基(酚性羥基、R1
、R2
、R3
及R4
的任一個或均為H時之羥基)上形成。
例如於非質子性溶媒中,使式(I)之化合物與金屬鈉或氫化鈉進行反應,藉由使羥基(-OH)轉變為醇鈉基(-ONa)而可製造式(I)之化合物之鈉鹽。故可藉由調節金屬鈉或氫化鈉的使用量,使式(I)之化合物中所含羥基全部轉變為醇鈉基,另外,亦可僅將一部分的羥基轉變為醇鈉基。
本發明之式(I)之化合物係新穎的化合物,發明者們將所製造之式(II)及式(III)之化合物作為標準品進行檢討時,判明如同後述實施例所述,式(II)及式(III)之化合物亦存在於烏龍茶中。因此式(II)及式(III)之化合物,係可將Camellia sinensis的葉子為原料之茶類,其中以烏龍茶、紅茶等發酵茶及焙茶為佳,自該等茶類藉由萃取或純化而進行分離。
由該等茶類中分離式(II)及式(III)之化合物,可藉由例如吸附管柱色層分析及高速液相層析儀(HPLC)等而進行。
本發明之化合物顯示具有血管內皮功能的改善作用。
亦即本發明之化合物,係藉由增強eNOS基因的表現、增強GTP-CHl基因的表現、增強DDAH2基因的表現、及/或使NADPH氧化酶基因的表現降低,而達成血管內皮功能的改善作用。eNOS基因、GTP-CHl基因、DDAH2及NADPH氧化酶基因表現的評價係根據文獻周知之方法,或可根據以下實施例記載之方法而進行。
如此,本發明之化合物由顯示具有血管內皮功能的改善作用,而可使用為血管內皮功能改善劑。另由於本發明之化合物顯示具有血管內皮功能的改善作用,藉由將本發明之化合物混合入飲食品、或使之為醫藥組成物之形態,及使之為適於人類等哺乳動物攝取之形態,而後使用該當飲食品或醫藥品,可達成對哺乳動物之血管內皮功能的改善作用。
因此,本發明另亦係有關與本發明之化合物或其鹽混合之飲食品,以及含有本發明之化合物或其鹽之醫藥組成物。
本發明之化合物可與各種飲食品混合。可與本發明之化合物混合之飲食品並無特別限制,可與現存的、各種飲食品混合。飲食品例如清涼飲料、茶飲料、液狀強壯劑、健康飲料、營養補給飲料、運動飲料、碳酸飲料(包含該等飲料之濃縮原液及調製用粉末)等飲料,以及口香糖、糖果、果凍、錠菓、健康食品、營養補給食品、營養補充品等食品,於該等飲食品中本發明之化合物的比例,例如可使之為0.01~1000ppm(μg/ml)而進行混合。以0.06~2000ppm為佳,使之為0.1~1000ppm而進行混合更佳。
將本發明之化合物使用為醫藥時,可以散劑、顆粒劑、錠劑、膠囊劑、液劑及注射劑等形態提供。本發明之化合物或其鹽可直接地,或以水等進行稀釋後經口投予。或藉由將其與周知之醫藥用載體一同製劑化而調製。例如將本發明之化合物或其鹽製作為糖漿劑等經口液狀製劑,或加工為萃取物、粉末等,與醫藥上容許之載體混合,以錠劑、膠囊劑、顆粒劑、散劑等經口固形製劑進行投予。藥學上可容許之載體,可使用作為製劑素材慣用的各種有機或無機的載體物質,固形製劑則可與賦形劑、滑澤劑、結合劑、崩解劑、液狀製劑之溶劑、賦形劑、懸濁化劑、結合劑等混合而進行製作。另外亦可因應需要使用防腐劑、抗氧化劑、著色料、甜味劑等製劑添加物。
有效用量則可依患者的年齡及體重,疾病種類及嚴重程度以及投予路徑適當地選擇。
本發明藉由以下實施例更詳細地說明本發明,但本發明並未因該等實施例而被限定。
將6g(13毫莫耳)(-)-表沒食子兒茶素-3-O-沒食子酸酯(EGCG)(TeavigoTM
,Roche公司),溶解於HCl之120ml乙醇溶液(0.02N,HCl為2.4毫莫耳)中,再加入180ml之甲醛之乙醇溶液(4質量%,甲醛為240毫莫耳),於室溫下進行4小時攪拌。停止反應後以純水進行10倍稀釋,再使其通過吸附樹脂CHP-20P管柱(600ml、37-75μm、三菱化學股份有限公司)。以1200ml之水進行洗淨後,依序使用900ml之25V/V%乙腈水溶液,1200ml之30V/V%乙腈水溶液進行溶出,將以25V/V%乙腈水溶液之溶出劃分以每300ml分做3個劃分(fr.1至fr.3),30V/V%乙腈水溶液溶出劃分以每300ml分做4個劃分(fr.4至fr.7)。
將CHP-20P管柱純化所得之劃分物再以逆相製備型HPLC進行純化。
管柱:Develosil ODS-HG-5(5cmΦ×50cm,野村化學股份有限公司)
移動相A:0.05V/V%TFA/H2
O(TFA:三氟醋酸)
移動相B:90V/V%CH3
CN,0.05V/V%TFA/H2
O
流速:32mL/分鐘
梯度程式:A/B=80/20(30分鐘),A/B=80/20→60/40(100分鐘),A/B=60/40(30分鐘)
檢出器:紫外線可視析光檢出器SPD-6AV((股份有限)島津製作所)檢出波長:A280nm
檢體:將CHP-20P管柱純化所得之fr.2至fr.7分別以20V/V%乙腈水溶液溶解,再分做數次將其全量通過管柱。
於上述各條件下,收集滯留時間109分鐘(化合物1)、113分鐘(化合物2)及滯留時間85分鐘(化合物3)、滯留時間106分鐘(化合物4)、滯留時間104分鐘(化合物5)及滯留時間135分鐘(化合物6)之各波峰。
對以HPLC分離之化合物進行MS及NMR測定。
化合物3~6進行MS測定時係藉由Q-TOF Premier(Micromass公司製,英國),以negative、V mode測定後,發現分別為m/z927.160、927.163、1397.248、927.161「M-H」-
離子波峰。另外,化合物3之NMR光譜數據係與文獻(Chem. Pharm. Bull 37(12),3255-3563(1989))所載之烏龍酮雙黃烷-A之NMR光譜數據一致。化合物4之NMR光譜數據係與文獻(Chem. Pharm. Bull 37(12),3255-3563(1989))所載之烏龍酮雙黃烷-B之NMR光譜數據一致。另外,由化合物5之NMR光譜數據與記載於國際公開第2005/116005號之圖4及圖5之NMR光譜數據一致。化合物6之NMR光譜數據與記載於國際公開第2005/116005號之圖2及圖3之NMR光譜數據一致。由該等結果可以確認化合物3為烏龍酮雙黃烷-A,化合物4係烏龍酮雙黃烷-B,化合物5係下述式(V)之化合物(式中R係表示沒食子酸酯基),化合物6係烏龍酮雙黃烷-C。
針對化合物1及化合物2,以下以MS、NMR進行構造分析。
MS係使用離子光源附有電噴灑離子源之ESI之Q-TOF Premier(Micromass公司製,英國)以negative、V mode測定。Cone volt:45V,Capillary voltage:3KV,Desolvation Temp:180℃,進行藉由lock spray之質量補正,使用Leucine enkepharine作為對照(m/z554.2615「M-H」-
。
其結果計算出化合物1係m/z1867.3112「M-H」-
之分子離子以及2價之933.1517「M-2H」2-
,分子式為C91
H72
O44
(err.:-11.0ppm),化合物2係m/z1867.3100「M-H」-
之分子離子以及2價之933.1151「M-2H」2-
,分子式為C91
H72
O44
(err.:-11.7ppm),推測2個化合物均為EGCG4分子係藉由3個亞甲基而交聯之化合物。
NMR係根據下述條件進行測定。將化合物1及化合物2溶解於DMSO-d6((CD3
)2
SO),以1
H及13
C之殘留波峰之δ2.50及δ39.43作為內標準進行NMR測定。測定項目係藉由1
HNMR、13
CNMR、1
H{13
C}-HSQC、1
H{13
C}-HMBC、以及將TOCSY及DQF-COSY以DMX-750分光光度計(BRUKER BIOSPIN,德國)進行測定。由NMR的結果可明確得知化合物1係具有EGCG8:8EGCG6:8EGCG6:8EGCG之鍵結形式之化合物(式(II)),化合物2係具有EGCG8:6EGCG8:8EGCG6:8EGCG鍵結形式之化合物(式(III))。化合物1之1
HNMR、13
CNMR光譜分別圖示於圖1及圖2,化合物2之1
HNMR、13
CNMR光譜圖示於圖3及圖4。
1
HNMR(DMSO-d6中)係可見δ10.34,9.37,9.17,9.09,9.01,8.88,8.75,8.71,8.68,8.08,8.04,7.62,6.81,6.77,6.72,6.55,6.49,6.39,6.04,5.86,5.55,5.47,5.34,5.23,4.96,4.79,4.64,4.04,4.02,3.92,3.90,3.85,3.83,3.73,3.71,3.64,3.62,3.54,3.52,3.07,3.05,2.96,2.93,2.74,2.72,2.70之訊號。
13
CNMR則可見δ165.29,165.13,165.02,165.01,154.45,154.44,154.25,152.33,152.20,151.97,151.66,151.62,150.82,150.66,150.52,149.66,145.63,145.56,145.54,145.50,145.50,145.27,145.23,145.18,138.46,138.38,132.77,132.26,132.12,128.50,127.61,119.20,119.17,118.96,118.90,108.73,108.55,107.05,106.19,105.19,105.05,104.31,103.77,99.01,98.52,77.44,76.65,76.51,76.10,67.53,67.50,66.95,66.63,25.94,25.63,25.49,25.30,17.14,16.74,15.81之訊號。
1
HNMR(DMSO-d6中)係可見δ9.91,9.25,9.16,8.09,7.22,6.81,6.76,6.74,6.52,5.94,5.50,5.38,4.77,4.52,3.95,3.95,3.80,3.54,2.80,2.74,2.73,2.67之訊號。
13
CNMR則可見δ165.08,165.01,154.06,152.83,152.35,151.45,150.78,150.26,145.52,145.52,145.24,145.18,138.49,138.44,132.21,132.10,128.42,127.63,119.05,118.95,108.58,108.46,108.46,106.95,105.74,104.92,104.06,98.32,97.81,76.59,75.94,66.69,66.35,26.33,25.26,16.72,15.99之訊號。
藉由該合成及純化所得之各化合物分別為化合物3(烏龍酮雙黃烷-A,984mg),化合物4(烏龍酮雙黃烷-B,374mg),化合物5(468mg),化合物6(烏龍酮雙黃烷-C,33mg),化合物1(15mg)及化合物2(44mg)。
針對於實施例1所合成‧純化之式(II)、式(III)之化合物,針對與血管內皮功能有關的基因表現之影響進行檢討。另外比較對象係使用已知血管內皮功能改善作用之EGCG單量體(和光純藥工業股份有限公司製)與茶黃素、茶黃素3-O-沒食子酸酯、茶黃素3’-O-沒食子酸酯及茶黃素3,3’-O-雙沒食子酸酯(長良科學股份有限公司製)。
將該等化合物溶解於經滅菌完成之二甲基亞碸(DMSO,NACALAI TESQUE股份有限公司),調製為濃度10mM之溶液。
再將該等溶液使用HuMedia-EG2培養基(倉敷紡績股份有限公司)進行1000倍稀釋,調製成最終濃度為10μM之溶液(DMSO最終濃度為0.1V/V%)。將該等檢體溶液以3mL/孔,對培養於6孔細胞培養盤中之人類臍帶血管內皮細胞(倉敷紡績股份有限公司)進行添加,並於37℃,5%CO2
之條件下進行8小時培養。
將細胞以ISOGEN(股份有限公司日本基因)進行回收,載自細胞中脆取RNA。進而使用RNeasy Mini Kit(QIAGEN)進行RNA純化。將純化後之總RNA200ng作為鑄型,再使用High-Capacity cDNA reverse transcription kit(Appliedbiosystems股份有限公司)合成cDNA,並進行定量PCR。使用GAPDH基因作為內部標準,並以Ct法進行解析,計算出相對於未進行處置之細胞,被驗檢體之基因表現變化率(相對於對照組之倍率)。
EGCG、式(II)(OHBF-Tet-1)、式(III)(OHBF-Tet-2)、茶黃素(THF)、茶黃素3-O-沒食子酸酯(THF3G)、茶黃素3’-O-沒食子酸酯(THF3’G)及茶黃素3,3’-O-雙沒食子酸酯(THFDiG)之各基因表現變化率圖示於圖5~8。
使式(II)及式(III)之化合物之eNOS基因表現增強為3倍左右(圖5),GTP-CH1基因表現為7倍左右(圖6),DDAH2基因表現為3倍左右(圖7)。另外,作用為使血管內皮細胞產生活性氧,使血管內皮功能降低之NADPH氧化酶的Nox4次型基因之表現,於式(II)及式(III)之化合物存在下,顯示了戲劇性地降低(圖8)。
反之EGCG單量體及茶黃素類於此次檢討的濃度下,所有的基因表現幾乎沒有變化,可明確得知本發明之EGCG 4聚物,較EGCG單量體及茶黃素類於低濃度下有效。
針對EGCG 2聚物及3聚物對與血管內皮功能有關之基因的表現之影響進行檢討。於評價時所使用之EGCG聚合物中,茶雙沒食子兒茶素(TSN)-A係使用以論文(Hashimoto,F. Nonaka,G. Nishioka,I. Chem. Pharm. Bull. 36(5),1676-1684(1988)為準而合成者,烏龍酮雙黃烷-A、烏龍酮雙黃烷-B、烏龍酮雙黃烷-C及化合物5係使用於實施例1中所合成‧純化者,評價以前述(A)相同方法進行。
烏龍酮雙黃烷-A(OHBF-A)、烏龍酮雙黃烷-B(OHBF-B)、烏龍酮雙黃烷-C(OHBF-C)、化合物5(OHBF Tri-1)、茶雙沒食子兒茶素-A(TSN-A)之各基因表現變化率圖示於圖9~12。
如圖9~12所示,EGCG 2聚物之烏龍酮雙黃烷-A、烏龍酮雙黃烷-B、烏龍酮雙黃烷-C、茶雙沒食子兒茶素-A及EGCG 3聚物之化合物5,於與前述A中檢討之式(II)及式(III)之化合物相同濃度時,幾乎沒有使任一基因表現產生變化。
由以上結果可明確得知本發明之EGCG 4聚物之血管內皮功能改善效果,於EGCG聚合物中尤其係以本發明之化合物具有特徵性的作用。
LC-MS/MS測定係以4000Q TRAP(Applied公司製),使用Turbo Ion Spray,以negative mode,根據以下條件進行測定;Collision energy:46eV(nega.),Ionspray voltage:4500V,溫度:450℃。
於MRM(multiple reaction monitoring)之測定頻道為EGCG 4聚物化合物,以933.16/168.90(nega. 2價),以下述測定條件進行。標準物質係使用式(III)之化合物。
管柱:Develosil C30-UG-3(野村化學,3mmΦ×150mm)
流速:0.3mL/分鐘
管柱溫度:40℃
移動相A:0.1V/V%HCOOH/H2
O
移動相B:0.1V/V%HCOOH/CH3
CN
梯度程式:A/B=91/9(0分鐘)→A/B=40/60(17分鐘)→A/B=15/85(17.1分鐘)→A/B=15/85(17.1分鐘~19分鐘)
使用上述條件進行黑烏龍茶之測定。
將黑烏龍茶之調和液(殺菌前溶液)以CHP-20P管柱(三菱化學股份有限)逐步進行劃分,並進行各劃分之定量。將以各劃分中被檢出之濃度合算起來作為調合液中濃度。調和液中之濃度係以EGCG 4聚物被檢出,將4個成份合算,再換算為式(III)之化合物為55ng/ml。
[圖1]圖1係化合物1之1
HNMR光譜圖。
[圖2]圖2係化合物1之13
CNMR光譜圖。
[圖3]圖3係化合物2之1
HNMR光譜圖。
[圖4]圖4係化合物2之13
CNMR光譜圖。
[圖5]圖5係顯示eNOS表現結果之柱狀圖。
[圖6]圖6係顯示GTP-CHl表現結果之柱狀圖。
[圖7]圖7係顯示DDAH2表現結果之柱狀圖。
[圖8]圖8係顯示NADPH氧化酶之Nox4次型基因表現結果之柱狀圖。
[圖9]圖9係顯示eNOS表現結果之柱狀圖。
[圖10]圖10係顯示GTP-CHl表現結果之柱狀圖。
[圖11]圖11係顯示DDAH2表現結果之柱狀圖。
[圖12]圖12係顯示NADPH氧化酶之Nox4次型基因表現結果之柱狀圖。
Claims (8)
- 一種以式(I)所示之化合物、或其鹽,
(式中R1 、R2 、R3 及R4 係分別為H或以式(A): 所示之基)。 - 如申請專利範圍第1項之化合物、或其鹽,其特徵係以式(II):
(式中R1 、R2 、R3 及R4 係與前述相同)所示。 - 如申請專利範圍第1項之化合物、或其鹽,其特徵係以式(III):
(式中R1 、R2 、R3 及R4 係與前述相同)所示。 - 如申請專利範圍第1~3項中任一項之化合物或其鹽,其中R1 、R2 、R3 及R4 均係以式(A):
所示之基。 - 如申請專利範圍第1~3項中任一項之化合物或其鹽,其係用於血管內皮功能改善劑。
- 如申請專利範圍第1~3項中任一項之化合物或其鹽,其係用於飲食品。
- 如申請專利範圍第1~3項中任一項之化合物或其鹽,其係用於醫藥組成物。
- 一種申請專利範圍第1~4項中任一項之化合物之製造方法,其特徵係包含於酸存在下,使表沒食子兒茶素沒食子酸酯或表沒食子兒茶素與甲醛進行反應之步驟。
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008222935 | 2008-08-29 |
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| TW201014591A TW201014591A (en) | 2010-04-16 |
| TWI469779B true TWI469779B (zh) | 2015-01-21 |
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| TW98129103A TWI469779B (zh) | 2008-08-29 | 2009-08-28 | Novel epigallocatechin gallate 4, and its vascular endothelial function enhancer |
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| US (2) | US8901166B2 (zh) |
| EP (1) | EP2330103B1 (zh) |
| JP (1) | JP5539881B2 (zh) |
| CN (1) | CN101659649B (zh) |
| ES (1) | ES2550077T3 (zh) |
| PT (1) | PT2330103E (zh) |
| TW (1) | TWI469779B (zh) |
| WO (1) | WO2010024393A1 (zh) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5569716B2 (ja) * | 2009-06-23 | 2014-08-13 | 独立行政法人国立循環器病研究センター | レクチン様酸化ldl受容体阻害用医薬品 |
| CA2823397C (en) | 2011-01-07 | 2020-03-10 | Elcelyx Therapeutics, Inc. | Chemosensory receptor ligand-based therapies |
| US9795792B2 (en) | 2011-02-25 | 2017-10-24 | Medtronic, Inc. | Emergency mode switching for non-pacing modes |
| KR20190120430A (ko) | 2012-01-06 | 2019-10-23 | 엘셀릭스 테라퓨틱스 인코포레이티드 | 바이구아나이드 조성물 및 대사 장애를 치료하는 방법 |
| AU2013207329B2 (en) | 2012-01-06 | 2017-10-26 | Anji Pharmaceuticals Inc. | Compositions and methods for treating metabolic disorders |
| CA2878625A1 (en) | 2012-07-11 | 2014-01-16 | Elcelyx Therapeutics, Inc. | Compositions comprising statins, biguanides and further agents for reducing cardiometabolic risk |
| CN102809592B (zh) * | 2012-07-13 | 2014-03-12 | 江苏大学 | 一种快速检测egcg的电化学传感器的电聚合制备方法 |
| AU2014203942B2 (en) | 2013-01-05 | 2019-01-03 | Anji Pharmaceuticals Inc. | Delayed-release composition comprising biguanide |
| EP2783578A1 (en) * | 2013-03-26 | 2014-10-01 | Symrise AG | Catechin reaction products |
| JP7061303B2 (ja) * | 2016-08-10 | 2022-04-28 | 国立大学法人九州大学 | 67kDaラミニンレセプター活性化剤及びその使用 |
| CN109432083A (zh) * | 2018-12-29 | 2019-03-08 | 中国医科大学附属第医院 | Egcg在制备改善血糖波动导致的内皮细胞损伤药物中的应用 |
| CN111888481B (zh) * | 2020-07-28 | 2022-03-11 | 四川大学 | 基于多酚复合物的纳米药物及其制备方法 |
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| CN101448403A (zh) * | 2006-05-19 | 2009-06-03 | 三得利株式会社 | 含原花色素茶饮料 |
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| JPH02187433A (ja) * | 1989-01-14 | 1990-07-23 | Sekisui Chem Co Ltd | 防臭性合成樹脂発泡体の製造方法 |
| JPH10142726A (ja) * | 1996-11-14 | 1998-05-29 | Konica Corp | ハロゲン化銀写真感光材料とその処理方法及び有機銀塩写真感光材料 |
| US6156912A (en) * | 1999-04-09 | 2000-12-05 | Mars, Incorporated | 88, 66, and 68 catechin and epicatechin dimers and methods for their preparation |
| US7067679B2 (en) | 2002-10-02 | 2006-06-27 | Mars, Inc. | Synthesis of dimeric, trimeric, tetrameric pentameric, and higher oligomeric epicatechin-derived procyanidins having 4,8-interflavan linkages and their use to inhibit cancer cell growth through cell cycle arrest |
| JP4668553B2 (ja) * | 2004-05-27 | 2011-04-13 | サントリーホールディングス株式会社 | リパーゼ阻害活性および/または抗酸化活性を有するエピガロカテキン二量体および三量体 |
| US7858080B2 (en) * | 2005-05-20 | 2010-12-28 | Agency For Science, Technology And Research | Aldehyde conjugated flavonoid preparations |
| JP5160149B2 (ja) * | 2007-06-22 | 2013-03-13 | 明治薬品株式会社 | 柿ポリフェノールオリゴマー |
| JP5563753B2 (ja) * | 2008-08-29 | 2014-07-30 | サントリーホールディングス株式会社 | エピガロカテキンガレート重合体を有効成分とするグルコシルトランスフェラーゼ阻害剤 |
| US8367718B2 (en) * | 2008-08-29 | 2013-02-05 | Suntory Holdings Limited | Epigallocatechin gallate trimer and α-glucosidase inhibitor containing epigallocatechin gallate polymer |
-
2009
- 2009-08-28 JP JP2010526791A patent/JP5539881B2/ja active Active
- 2009-08-28 TW TW98129103A patent/TWI469779B/zh active
- 2009-08-28 ES ES09810041.5T patent/ES2550077T3/es active Active
- 2009-08-28 WO PCT/JP2009/065084 patent/WO2010024393A1/ja not_active Ceased
- 2009-08-28 EP EP09810041.5A patent/EP2330103B1/en active Active
- 2009-08-28 PT PT98100415T patent/PT2330103E/pt unknown
- 2009-08-28 US US13/060,996 patent/US8901166B2/en active Active
- 2009-08-31 CN CN2009101694127A patent/CN101659649B/zh active Active
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2014
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101448403A (zh) * | 2006-05-19 | 2009-06-03 | 三得利株式会社 | 含原花色素茶饮料 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201014591A (en) | 2010-04-16 |
| JP5539881B2 (ja) | 2014-07-02 |
| US8901166B2 (en) | 2014-12-02 |
| US20140343303A1 (en) | 2014-11-20 |
| EP2330103B1 (en) | 2015-10-07 |
| PT2330103E (pt) | 2015-12-28 |
| EP2330103A1 (en) | 2011-06-08 |
| CN101659649B (zh) | 2013-10-09 |
| US9375416B2 (en) | 2016-06-28 |
| JPWO2010024393A1 (ja) | 2012-01-26 |
| CN101659649A (zh) | 2010-03-03 |
| WO2010024393A1 (ja) | 2010-03-04 |
| EP2330103A4 (en) | 2012-05-02 |
| ES2550077T3 (es) | 2015-11-04 |
| US20110152361A1 (en) | 2011-06-23 |
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