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1

New monomeric and dimeric hydrolyzable tannins from Tamarix nilotica

Orabi Mohamed A. A. , Taniguchi Shoko , Yoshimura Morio [他]

Heterocycles 80(1), 463-475, 2010-01-01
2

天然ナノ分子タンニン : その構造と機能

吉田隆志 , 波多野力 , 伊東秀之

… Large-size secondary metabolites with dimeric-oligomeric and/or dendrine-type structure from higher plants are regarded as natural nanomolecules which are constructed in a bottom-up pathway from small molecules under biological condition. … They constitute two major groups : one is condensed tannins (proantocyanidins), which are composed of flavan-3-ol units linked through C-C bond, and the other is hydrolyzable tannins, which are principally multiple esters of D-glucose with gallic acid and its oxidative metabolites. …

有機合成化学協会誌 : JOURNAL OF Synthetic Organic Chemistry JAPAN 62(5), 500-507, 2004-05-01

Journal@rchive CrossRef 参考文献27件被引用文献1件
3

Evaluation of the Anti-oxidative Effect (in vitro) of Tea Polyphenols(Organic Chemistry)

HASHIMOTO Fumio , ONO Masateru , MASUOKA Chikako , ITO Yasuyuki , SAKATA Yusuke , SHIMIZU Keiichi , NONAKA Gen-ichiro , NISHIOKA Itsuo , NOHARA Toshihiro

… Among these, 1, 4, 6-tri-O-galloyl-β-D-glucose (hydrolyzable tannin) showed the highest anti-oxidative activity against lipid peroxidation, even stronger than that of 3-tert.-butyl-4-hydroxyanisole (BHA). … The assay demonstrates that tea polyphenols, except for desgalloylated dimeric proanthocyanidins that possess a catechin structure in the upper unit and desgalloylated flavan-3-ols, and excepting theaflavin 3, 3'-di-O-gallate, had more antioxidative activity than that of α-tocopherol. …

Bioscience, biotechnology, and biochemistry 67(2), 396-401, 2003-02-23

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4

Tannins and Related Polyphenols of Euphorbiaceous Plants. XIV. Euphorbin I, a New Dimeric Hydrolyzable Tannin from Euphorbia watanabei

AMAKURA Yoshiaki , YOSHIDA Takashi

… A new dimeric dehydroelalgitannin, euphorbin I (3), was isolated together with twenty-eight known polyphenols including dimeric ellagitannins, euphorbins A (1) and B (2), from the fresh leaves of Euphorbia watanabei. …

Chemical & pharmaceutical bulletin 44(7), 1293-1297, 1996-07-15

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5

CAMELLIATANNIN D, A NEW INHIBITOR OF BONE RESORPTION, FROM CAMELLIA JAPONICA

波多野力 , 韓力 , 谷口抄子 , 奥田拓男 , 木曽良信 , 田中隆治 , 吉田隆志

… Camelliatannin D (1), a new complex tannin which inhibits Ca release from mouse calvaria, was isolated from the leaves and fruits of Camellia japonica L. … This tannin is the first example of complex tannin composed of a dimeric hydrolyzable tannin and a flavan-3-ol. …

Chemical & pharmaceutical bulletin 43(11), 2033-2035, 1995-11-15

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6

Tannins and Related Polyphenols of Euphorbiaceous Plants. XII. Euphorbins G and H, New Dimeric Hydrolyzable Tannins from Euphorbia prostrata and Euphorbia makinoi

吉田隆志 , 難波治 , 黒川健二 , 天倉吉章 , 劉延沢 , 奥田拓男

… These new dimers, and 13 known hydrolyzable tannins, among which six are the same as those from E.prostrata, were also isolated from E.makinoi. …

Chemical & pharmaceutical bulletin 42(10), 2005-2010, 1994-10-15

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7

Tannins of Theaceous Plants. V. Camelliatannins F, G and H, Three New Tannins from Camellia japonica L.

韓力 , 波多野力 , 吉田隆志 , 奥田拓男

… A new dimeric hydrolyzable tannin, named camelliatannin H (5), was isolated from the fruits of this plant. …

Chemical & pharmaceutical bulletin 42(7), 1399-1409, 1994-07-15

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8

Tannins of Tamaricaceous Plants. V. New Dimeric, Trimeric and Tetrameric Ellagitannins from Reaumuria hirtella

AHMED Atallah F. , 吉田隆志 , 奥田拓男

… A new hydrolyzable tannin dimer [hirtellin G (1)], a trimer [hirtellin T_1 (5)] and a tetramer [hirtellin Q_1 (6)] have been isolated from the 70% acetone extract of the leaves of Reaumuria hirtella JAUB. …

Chemical & pharmaceutical bulletin 42(2), 246-253, 1994-02-15

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9

Tannins and Related Compounds. CXIX. Samarangenins A and B, Novel Proanthocyanidins with Doubly Bonded Structures, from Syzygium samarangens and S. aqueum

野中源一郎 , 愛甲ゆかり , 有竹浩介 , 西岡五夫

… Two proanthocyanidins named samarangenins A (1) and B (2) have been isolated, together with a variety of flavan-3-ols, proanthocyanidins and hydrolyzable and complex tannins, from the leaves of Syzygium samarangens (BLUME) MERR. … Compounds 1 and 2 were characterized on the basis of spectroscopic and chemical evidence as novel dimeric proanthocyanidins, in which two flavanoid units are doubly linked through ether and carbon-carbon bonds. …

Chemical & pharmaceutical bulletin 40(10), 2671-2673, 1992-10-25

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10

66 ツバキおよび近縁植物の抗HIV作用を有するタンニン(ポスター発表の部)

波多野力 , 韓力 , 谷口抄子 , 周〓 , 新宮徹朗 , 坂上宏 , 竹田稔 , 中島秀喜 , 村山努 , 山本直樹 , 吉田隆志 , 奥田拓男

… Structural study revealed that camelliatannins A (10), B (11), C (12), E (14), F (15) and G (16) are complex tannins consisting of a monomeric hydrolyzable tannin and epicatechin, and camelliatannin H (17) is a dimeric hydrolyzable tannin. …

天然有機化合物討論会講演要旨集 (34), 510-517, 1992-09-10

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11

Tannins and Related Polyphenols of Rosaceous Medicinal Plants. XII. Roshenins A-E, Dimeric Hydrolyzable Tannins from Rosa henryi BOUL.

吉田隆志 , 馮衛生 , 奥田拓男

… Five new hydrolyzable tannin dimers, roshenins A-E, and eight known tannins and related polyphenols [(+)-catechin, (-)-epicatechin, procyanidins B-3 and B-4,sanguisorbic acid dilactone, sanguiins H-2,H-6 and lambertianin A], have been isolated from the root of Rosa henryi BOUL. …

Chemical & pharmaceutical bulletin 40(8), 1997-2001, 1992-08-25

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12

Eucalbanins A, B and C, Monomeric and Dimeric Hydrolyzable Tannins from Eucalyptus alba REINW.

吉田隆志 , 丸山哲潤 , 新田あや , 奥田拓男

… Three new hydrolyzable tannins, eucalbanins A (5), B (8) and C (11), have been isolated from the fruit extract of Eucalyptus alba REINW., and their structures were elucidated on the basis of spectral data and chemical correlation with known tannins. …

Chemical & pharmaceutical bulletin 40(7), 1750-1754, 1992-07-25

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13

Tannins of Euphorbiaceous Plants. X. Antidesmin A, a New Dimeric Hydrolyzable Tannin from Antidesma pentandrum var. barbatum

吉田隆志 , 難波治 , 呂車鳳 , 楊玲玲 , 顔焜〓 , 奥田拓男

… A new hydrolyzable tannin, antidesmes A (4), was isolated along with carpinusin (1) and geraniin (2) from dried leaves of Antidesma pentandrum MERR, var. … barbatum MERR., and its dimeric structure, composed of devidiin (3) and geraniin (2), has been elucidated by spectral and chemical methods. …

Chemical & pharmaceutical bulletin 40(2), 338-342, 1992-02-25

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14

Tannins and Related Polyphenols of Melastomataceous Plants. III. Nobotanins G, H and I, Dimeric Hydrolyzable Tannins from Heterocentron roseum

吉田隆志 , 羽場久美子 , 中田文久 , 岡野嘉明 , 新宮徹朗 , 奥田拓男

… Three new hydrolyzable tannin dimers, nobotanins G (6), H (12) and I (13), have been isolated from the leaves of Heterocentron roseum (Melastomataceae), and their structures were elucidated on the basis of chemical degradations and nuclear magnetic resonance spectral analyses. …

Chemical & pharmaceutical bulletin 40(1), 66-71, 1992-01-25

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15

Tannins of Tamaricaceous Plants. II. New Monomeirc and Dimeric Hydrolyzable Tannins from Reaumuria hirtella and Tamarix pakistanica

吉田隆志 , AHMED Atallah F. , MEMON Muhammad U. , 奥田拓男

… Two new monomeric hydrolyzable tannins [remurins A (12) and B (13)] and a new dimer [hirtellin A (7)], have been isolated from Reaumuria hirtella JAUB. …

Chemical & pharmaceutical bulletin 39(11), 2849-2854, 1991-11-25

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16

Tannins and Related Polyphenols of Theaceous Plants. IV. Monomeric and Dimeric Hydrolyzable Tannins Having a Dilactonized Valoneoyl Group from Schima wallichii KORTH.

吉田隆志 , 周〓 , 新田あや , 奥田拓男

… Two new hydrolyzable tannins, schimawalins A (10) and B (17), have been isolated from the dried flowers of Schima wallichii (DC) KORTH. … Eight known hydrolyzable tannins, including camelliin B (8), the main constitvent of the flower, with a macrocyclic dimer structure, were also isolated. …

Chemical & pharmaceutical bulletin 39(9), 2247-2251, 1991-09-25

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17

Tannins and Related Polyphenols of Melastomataceous Plants. I. Hydrolyzable Tannins from Tibouchina semidecandra COGN.

吉田隆志 , 大林英之 , 石原幸吉 , 大鷲若代 , 羽場久美子 , 岡野嘉明 , 新宮徹朗 , 奥田拓男

… Four new hydrolyzable tannins, methylvescalagin and nobotanins, A, D and F, along with eleven known polyphenolics, have been isolated from the leaves of Tibouchina semidecandra COGN. … Based on spectral and chemical evidence, nobotanin D was characterized as 1,6-di-O-galloyl-2,3-O-(S)-hexahydroxydiphenoyl-β-D-glucose (16), and the structures of nobotanins A (17) and F (18) were established as dimeric hydrolyzable tannins possessing a valoneoyl group as a linking unit between the monomers. …

Chemical & pharmaceutical bulletin 39(9), 2233-2240, 1991-09-25

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18

Tannins and Related Compounds. CVIII. Isolation and Characterization of Novel Complex Tannins (Flavono-ellagitannins), Anogeissinin and Anogeissusins A and B, from Anogeissus acuminata (ROXB ex DC.) GUILL. et PERR. var. lanceolata WALL. ex CLARKE

林大〓 , 田中隆 , 野中源一郎 , 西岡五夫 , 揚崇仁

… ex CLARKE (Combretaceae), together with eight known C-glycosidic hydrolyzable tannins. … On the basis of spectroscopic and chemical evidence, anogeissinin (9) was shown to have two C-glycosidic ellagitannin (vescalagin) moieties connected to the C-6 and C-8 positions in the (+)-catechin moiety, while anogeissusins A (10) and B (11) have structures in which the dimeric C-glycosidic ellagitannin, castamollinin (8), is attached to the C-8 position of the (+)-catechin and (+)-gallocatechin moieties, respectively. …

Chemical & pharmaceutical bulletin 39(5), 1144-1147, 1991-05-25

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19

Tannins and Related Polyphenols of Euphorbiaceous Plants. VII. Tirucallins A, B and Euphorbin F, Monomeric and Dimeric Ellagitannins from Euphorbia tirucalli L.

吉田隆志 , 横山晃一 , 難波治 , 奥田拓男

… A new monomeric hydrolyzable tannin, tirucallin A (7), and two new dimers, tirucallin B (11) and euphorbin F (14), have been isolated, together with six known polyphenols including euphorbin A, from the stems of Euphorbia tirucalli L., and their structures were elucidated by spectral and chemical methods. …

Chemical & pharmaceutical bulletin 39(5), 1137-1143, 1991-05-25

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20

Tannins and Related Compounds. CIX. Isolation of Alienanins A and B, Novel C, C-Linked Ellagitannin Dimers from Quercus aliena BLUME

野中源一郎 , 酒井孝 , 三橋國英 , 西岡五夫

… Two novel hydrolyzable tannins, alienanins A (5) and B (13), have been isolated from the leaves of Quercus aliena GLUME (Fagaceae), and their structures were elucidated on the basis of chemical and spectroscopic evidence to be dimeric C-glycosidic ellagitannins in which the hexahydroxydiphenoyl ester group is linked to the C-glycosidic C-1 atom through a carbon to carbon linkage. …

Chemical & pharmaceutical bulletin 39(4), 884-888, 1991-04-25

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