Silyl Migration and Formation of a Benzyl α -Galactopyranoside Derivative on Attempted Benzylation of t-Butyldimethylsilyl 3-O-p-Methoxybenzyl-β -D-Galactopyranoside

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منابع مشابه

phthalein /3-D-glucuronide, p-nitrophenyl N-acetyl-/3-D-glucosaminide, p-nitrophenyl /3-D-fucoside, p- nitrophenyl /3-D-galactoside and 6-bromo-2-naphthyl /3-D-galactopyranoside from Sigma Chemical CO.(U.S.A..), phenyl /3-D-galactopyranoside from Nakarai

p-Hydroxyphenylacetaldoxime (HPAAO) (anti and syn forms) obtained by fermentation arid its analogs chemically synthesized were tested for their activities to inhibit various glycosidases. HPAAO inhibited bovine liver /3-galactosidase in a competitive manner at pH 17.0 with an apparent Ki value of 8 x 10-8 M. HPAAO also inhibited various mammalian /3.glycosidases which had pH optima between 6.0 ...

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Benzyl-2-Acetamido-2-Deoxy-α-d-Galactopyranoside Increases Human Immunodeficiency Virus Replication and Viral Outgrowth Efficacy In Vitro

Glycosylation of host and viral proteins is an important posttranslational modification needed to ensure correct function of glycoproteins. For this reason, we asked whether inhibition of O-glycosylation during human immunodeficiency virus (HIV) in vitro replication could affect HIV infectivity and replication rates. We used benzyl-2-acetamido-2-deoxy-α-d-galactopyranoside (BAGN), a compound th...

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Diosgenyl 2-amino-2-deoxy-β-D-galactopyranoside: synthesis, derivatives and antimicrobial activity

The synthesis of diosgenyl 2-amino-2-deoxy-β-D-galactopyranoside is presented for the first time. This synthetic saponin was transformed into its hydrochloride as well as N-acyl, 2-ureido, N-alkyl, and N,N-dialkyl derivatives. Antifungal and antibacterial studies show that some of the obtained compounds are active against Gram-positive bacteria and Candida type fungi.

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A new flavonol glycoside from Hylomecon vernalis.

Purification of a MeOH extract from the aerial parts of Hylomecon vernalis Maxim. (Papaveraceae) using column chromatography furnished a new acetylated flavonol glycoside (1), together with twenty known phenolic compounds (2-21). Structural elucidation of 1 was based on 1D- and 2D-NMR spectroscopy data analysis to be quercetin 3-O-[4‴-O-acetyl-α-L-arabinopyranosyl]-(1‴→6″)-β-D-galactopyranoside...

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Phenyl-β-D-glucopyranoside and Phenyl-β-D-galactopyranoside Dimers: Small Structural Differences but Very Different Interactions

Citation: Usabiaga I, Camiruaga A, Insausti A, Çarçabal P, Cocinero EJ, León I and Fernández JA (2018) Phenyl-β-D-glucopyranoside and Phenyl-β-D-galactopyranoside Dimers: Small Structural Differences but Very Different Interactions. Front. Phys. 6:3. doi: 10.3389/fphy.2018.00003 Phenyl-β-D-glucopyranoside and Phenyl-β-D-galactopyranoside Dimers: Small Structural Differences but Very Different I...

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ژورنال

عنوان ژورنال: Journal of the Korean Chemical Society

سال: 2002

ISSN: 1017-2548

DOI: 10.5012/jkcs.2002.46.6.590