Synthesis of Bisflavanol-Type Natural Products and Their Analogues via Self-Coupling of C8-Methylol Catechin Derivatives
A highly efficient and regioselective self-coupling of C8-methylol catechin derivatives is developed for the synthesis of dimeric flavanol analogues under metal-free and mild conditions. Its applicability is showcased by the efficient synthesis of bisflav
Huang, Deng-Ming,Li, Hui-Jing,Wu, Yan-Chao,Zhao, Yan
GLUCOSYLTRANSFERASE INHIBITOR COMPRISING EPIGALLOCATECHIN GALLATE POLYMER AS ACTIVE INGREDIENT
Provided is a highly palatable and safe glucosyltransferase inhibitor or anti-dental caries agent. A glucosyltransferase inhibitor or anti-dental caries agent having an epigallocatechin gallate polymer or a salt thereof. Particularly, the above agent cont
The present invention provides an α-glucosidase inhibitor containing a novel epigallocatechin gallate trimer and an epigallocatechin gallate polymer. Decomposition of starch derived from a meal and sugar derived from a polysaccharide can be suppressed by
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Page/Page column 5
(2011/08/03)
NOVEL EPIGALLOCATECHIN GALLATE TETRAMER, AND VASCULAR ENDOTHELIAL FUNCTION IMPROVER COMPRISING SAME
Providing a compound capable of continuously taking and having a vascular endothelial function improving effect by enhancing NO function from the vascular endothelial cells. A compound represented by Formula (I) wherein R1, R2, Rsub
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Page/Page column 8-10
(2011/06/24)
EPIGALLOCATECHIN DIMERS OR TRIMERS HAVING LIPASE INHIBITORY ACTIVITY AND/OR ANTIOXIDATIVE ACTIVITY
An object of the present invention is to provide a lipase activity inhibitor that shows high inhibitory activity against pancreatic lipase to suppress the absorption of meal-derived fat and/or which contributes to suppressing and preventing obesity, as we
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Page/Page column 9
(2008/06/13)
Tannins and related compounds. XC. 8-C-Ascorbyl (-)-epigallocatechin 3-O-gallate and novel dimeric flavan-3-ols, oolonghomobisflavans A and B, from oolong tea (3)
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Hashimoto,Nonaka,Nishioka
p. 3255 - 3263
(2007/10/02)
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