Results 181 to 190 of about 7,411 (225)

Structural Studies of Trisaccharide of Leptaculatin

Journal of Carbohydrate Chemistry, 1994
Abstract Leptatriose (2), a novel trisaccharide, was obtained from acid hydrolysate of Leptaculatin (1), isolated from Leptadenia reticulata. On the basis of physico-chemical results, the structure of 2 was established as O-β-d-glucopyranosyl (1>4)-O-β-d-glucopyranosyl (1>4)-β-d-cymaropyranose.
Sanjay Srivastava, Desh Deepak, Anakshi Khare   +2 more
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Structural analysis of trisaccharides as permethylated trisaccharide alditols by gas-liquid chromatography-mass spectrometry

Carbohydrate Research, 1971
Abstract The separation and structural analysis of 21 trisaccharides as their permethylated trisaccharide alditols by gas-liquid chromatography (g.l.c.) and gas-liquid chromatography-mass spectrometry (g.l.c.-m.s.) is described. Most of the alditol derivatives could be separated from one another by g.l.c. with SE-30 or OV-22 stationary phases.
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A NEW FERULOYLATED TRISACCHARIDE FROM BAGASSE

Chemistry Letters, 1983
Abstract O-(5-O-Feruloyl-α-l-arabinofuranosyl)-(1→3)-O-β-d-xylopyranosyl-(1→4)-d-xylopyranose (I) was isolated from the enzymatic hydrolysate of bagasse lignin–carbohydrate complex containing ferulic acid (LCC-F) and identified from I.R., U.V., G.L.C.-M.S., and N.M.R. spectra.
Atsushi Kato, Jun-ichi Azuma, Tetsuo Koshijima   +2 more
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Fucosido‐lactose, das Trisaccharid der Frauenmilch

Chemische Berichte, 1955
AbstractDie Anordnung der Bausteine ist > D‐Glucose > D‐Galaktose > L‐Fucose, Nach partieller Säurehydrolyse ließ sich Lactose isolieren. Die Spaltung des permethylierten Trisaccharids lieferte 2.3.6‐Trimethyl‐D‐glucose, 3.4.6‐Trimethyl‐D‐galaktose und 2.3.4‐Trimethyl‐L‐fucose.
Kuhn, R., Baer, H., Gauhe, A.
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Unusual conformational behavior of trisaccharides containing N-acetylglucosamine

Carbohydrate Research, 2005
Protected trisaccharides containing N-acetylglucosamine can adopt unexpected conformations through the formation of hydrogen bonds involving the amide group. This conformational behavior was observed by NMR spectroscopy when three protected trisaccharides were dissolved in deuterated chloroform and to a lesser extent in deuterated dichloromethane.
Liang, Liao, Valerie, Robertson, France-Isabelle, Auzanneau   +2 more
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Synthesis and cytotoxicity of oleanolic acid trisaccharide saponins

Carbohydrate Research, 2017
An array of oleanolic acid-type saponins based on β-hederin has been synthesized in a linear or one-pot manner. The cell viability assays indicate that synthetic saponins show antiproliferation activities in three cancer cell lines with IC50 values of 2.4-15.1 μM and hederacolchiside A1 being the most potent.
Liming, Wang, Zengshang, Wang, Sheng, Su, Ying, Xing, Yali, Li, Ming, Li, Jiangyun, Liu, Shilin, Yang   +7 more
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Synthesis of a carboxyl linker containing Pk trisaccharide

Carbohydrate Research, 2005
An efficient synthesis of a Pk trisaccharide with a functionalized side arm at the reducing end for conjugation to other molecules is presented. Construction of the Pk trisaccharide with a high alpha-selectivity was achieved in high yield by coupling a reactive galactosyl phosphite donor with a lactosyl acceptor.
Shu-Yi, Hsieh, Mi-Dan, Jan, Laxmikant N, Patkar, Chien-Tien, Chen, Chun-Cheng, Lin   +4 more
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Formation of trisaccharides (kestoses) by pyrolysis of sucrose

Carbohydrate Research, 1991
Amorphous sucrose, containing citric acid as catalyst, undergoes thermolysis at 100 degrees to yield fructofuranosyl cation and D-glucose. The cation reacts with unchanged sucrose to form all three of the known kestoses, and also their alpha-fructofuranosyl anomers. Two of the latter are resistant to invertase hydrolysis.
M, Manley-Harris, G N, Richards
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Synthese eines Trisaccharids mit verzweigter Kette

Chemische Berichte, 1956
AbstractDie Synthese eines verzweigten Trisaccharid‐Derivates, des β‐Methyl‐6‐[β‐glucoside〈1.5〉]‐4′.6′‐äthyliden‐cellobiosids (V), wird beschrieben. Seine Struktur ergibt sich aus dem Gang der Synthese und den Ergebnissen der Methylierung und anschließenden Hydrolyse.
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Regioselective syntheses of trehalose-containing trisaccharides using various glycohydrolases

Carbohydrate Research, 1990
Two methods were investigated for the enzymic preparation of trehalose-containing trisaccharides. In the first, a solution of saccharides is circulated through an immobilized-glycosidase column and an activated-carbon column connected in series. In the second, two enzymes having different substrate specificities are sequentially used for condensation ...
K, Ajisaka, H, Fujimoto
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