Results 171 to 180 of about 16,068 (197)
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Synthesis of a position isomer of ganglioside GD3having an α-Neu5Ac-(2→9)-α-Neu5Ac linkage
Carbohydrate Research, 1992A position isomer of ganglioside GD3 has been synthesized in which N-acetylneuraminic acid (Neu5Ac) is linked alpha-glycosidically at C-9 of the Neu5Ac residue of the ganglioside GM3, structure. The coupling of 2-(trimethylsilyl)ethyl O-(6-O-benzoyl-beta-D-galactopyranosyl)-(1----4)-2,6-di-O-benzoyl-beta-D -glucopyranoside with methyl O-(methyl 5 ...
A, Hasegawa, H, Ogawa, M, Kiso
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ChemInform, 1997
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
T. KONDO +4 more
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AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
T. KONDO +4 more
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ChemInform, 1995
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Y. KAJIHARA +5 more
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AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Y. KAJIHARA +5 more
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Synthesis of α- and β-Methyl NEU5Ac α-(2→8) NEU5Ac Disaccharides
Journal of Carbohydrate Chemistry, 1990ABSTRACT Acid hydrolysis of colominic acid, an α-(2→8)-linked oligomer of sialic acid, yielded Neu5Ac α-(2→8) Neu5Ac (di-Neu5Ac) 2 as one of the products. Starting from this disaccharide, it was possible to prepare two potential di-Neu5Ac donors, 5 and 8, as their corresponding 2-chloro derivatives. Subsequent reaction of the donor 8 with methanol as a
S.Z. Abbas +4 more
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Organic Letters, 2000
Sialic acid and its analogues have been synthesized using a salenCo(II) complex catalyzed hetero Diels-Alder reaction and oxidative azidation (CAN/NaN3) of silyl enol ether as the key steps.
, Li, , Wu, , Wu
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Sialic acid and its analogues have been synthesized using a salenCo(II) complex catalyzed hetero Diels-Alder reaction and oxidative azidation (CAN/NaN3) of silyl enol ether as the key steps.
, Li, , Wu, , Wu
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ChemInform, 2000
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Lian‐Sheng Li, Yu‐Lin Wu, Yikang Wu
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AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Lian‐Sheng Li, Yu‐Lin Wu, Yikang Wu
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Synthesis of Neu5Ac, KDN, and KDO C-Glycosides
ChemInform, 2005AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
Chi‐Chang Chen +2 more
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Carbohydrate Research, 1992
Abstract From the reaction products of the Kuhn-Bashang synthesis of Neu5Ac, 5-acetamido-3,5-dideoxy- α -and - β - d - glycero - d - talo -2-nonulopyranosonic acid (4- epi -Neu5Ac) were isolated as the acetylated methyl esters ( 1 and 2 ).
Nargiz E Byramova +2 more
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Abstract From the reaction products of the Kuhn-Bashang synthesis of Neu5Ac, 5-acetamido-3,5-dideoxy- α -and - β - d - glycero - d - talo -2-nonulopyranosonic acid (4- epi -Neu5Ac) were isolated as the acetylated methyl esters ( 1 and 2 ).
Nargiz E Byramova +2 more
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Stereoselective Total Syntheses of (+)-Castanospermine and Neu5Ac Methyl Ester
The Journal of Organic Chemistry, 2019Concise and stereocontrolled total syntheses of (+)-castanospermine and N-acetylneuraminic acid methyl ester were achieved from diastereomerically enriched anti, syn, syn-1,3-oxazine and anti, syn, anti-1,3-oxazine, respectively. The key step in this strategy was the stereoselective BF3·OEt2-mediated allylation.
In-Soo Myeong +3 more
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A New Synthesis of Neu5Ac from
A new route to Neu5Ac methyl ester (23) with a readily available sugar D-glucono-delta-lactone as starting material has been developed. A diastereoselective propargylation of alpha-acetamino aldehyde and a subsequent KMnO(4) oxidation of the terminal alkyne served as the key steps.
Ke-Gang, Liu +3 more
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