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Vitamin C metabolomic mapping in experimental diabetes with 6-deoxy-6-fluoro-ascorbic acid and high resolution 19F-nuclear magnetic resonance spectroscopy.

• Yoko Nishikawa, Barbara Dmochowska, +6 authors Vincent M. Monnier
• Metabolism: clinical and experimental
• 2003

Metabolomic mapping is an emerging discipline geared at providing information on a large number of metabolites as a complement to genomics and proteomics. Here we have probed ascorbic acid… (More)

Mutagenic activity of quaternary ammonium salt derivatives of carbohydrates

• Barbara Dmochowska, Karol Sikora, Anna Woziwodzka, Jacek Piosik, Beata Podgórska
• Beilstein journal of organic chemistry
• 2016

This paper presents a study on a series of quaternary ammonium salt (QAS) derivatives of glucopyranosides with an elongated hydrophobic hydrocarbon chain. The new… (More)

DFT studies of the conversion of four mesylate esters during reaction with ammonia

• Andrzej Nowacki, Karol Sikora, Barbara Dmochowska, Andrzej Wisniewski
• Journal of molecular modeling
• 2013

The energetics of the Menshutkin-like reaction between four mesylate derivatives and ammonia have been computed using B3LYP functional with the 6-31+G** basis set. Additionally, MPW1K/6-31+G** level… (More)

New class of quaternary ammonium salts, derivatives of methyl D-glucopyranosides.

• Lucyna Pellowska-Januszek, Barbara Dmochowska, Eugenia Skorupa, Jarosław Chojnacki, Wiesław Wojnowski, Andrzej Wisniewski
• Carbohydrate research
• 2004

Reactions of two aromatic and two aliphatic amines with methyl 6-O-p-toluenesulfonyl-alpha-D-glucopyranoside or methyl 6-O-p-toluenesulfonyl-beta-D-glucopyranoside were performed on a micro-scale.… (More)

Vitamin C metabolomic mapping in the lens with 6-deoxy-6-fluoro-ascorbic acid and high-resolution 19F-NMR spectroscopy.

• Makoto Satake, Barbara Dmochowska, +6 authors Vincent M. Monnier
• Investigative ophthalmology & visual science
• 2003

PURPOSE Metabolomics, or metabolic profiling, is an emerging discipline geared to providing information on a large number of metabolites, as a complement to genomics and proteomics. In the current… (More)

Acid-catalyzed isomerization of methyl 2-deoxy-D-arabino-hexosides: equilibria, kinetics and mechanism.

• Andrzej Nowacki, Kazimiera Smiataczowa, Regina Kasprzykowska, Barbara Dmochowska, Andrzej Wisniewski
• Carbohydrate research
• 2002

Four isomers of methyl 2-deoxy-D-arabino-hexosides were isolated by HPLC as chromatographically homogeneous compounds. The rates of pyranoside isomerization (alpha(p) and beta(p)) at 40 degrees C and… (More)

Preparation, chemical and crystal structures of N-(2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-beta-D-glucopyranosyl)pyridinium chloride.

• Barbara Dmochowska, Dallas Bednarczyk, Andreas Nowacki, Antoni Konitz, Waldemar Wojnowski, Angela M Wisniewski
• Carbohydrate research
• 2000

Preparation and isolation of N-(2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-beta-D-glucopyranosyl)pyridinium chloride are described. Its structure was determined by 1H NMR spectroscopy and X-ray analysis.… (More)

Mutagenicity of quaternary ammonium salts containing carbohydrate moieties.

• Barbara Dmochowska, Jacek Piosik, Anna Woziwodzka, Karol Sikora, Andrzej Wisniewski, Grzegorz Węgrzyn
• Journal of hazardous materials
• 2011

Quaternary ammonium salts are widely used in industrial, agricultural, healthcare and domestic applications. They are believed to be safe compounds, with little or no health hazard to humans.… (More)

Preparation, single-crystal X-ray diffraction and high-resolution NMR spectroscopic analyses of N-[(1,4-anhydro-5-deoxy-2,3-O-isopropylidene-D,L-ribitol)-5-yl]trimethylammonium iodide.

• Barbara Dmochowska, Eugenia Skorupa, Lucyna Pellowska-Januszek, Monika Czarkowska, A. Sikorski, Andrzej Wisniewski
• Carbohydrate research
• 2006

The synthesis and isolation of 1,4-anhydro-5-deoxy-5-iodo-2,3-O-isopropylidene-D,L-ribitol and N-[(1,4-anhydro-5-deoxy-2,3-O-isopropylidene-D,L-ribitol)-5-yl]trimethylammonium iodide are described.… (More)

The conformational behavior, geometry and energy parameters of Menshutkin-like reaction of O-isopropylidene-protected glycofuranoid mesylates in view of DFT calculations.

• Andrzej Nowacki, Justyna Wielinska, Dominik Walczak, Karol Sikora, Barbara Dmochowska, Beata Liberek
• Journal of molecular graphics & modelling
• 2014

The formation of pyridinium salts in the transformation of three O-isopropylidene-protected mesylates of furanoid sugar derivatives under pyridine action is considered at the B3LYP/6-31+G**… (More)

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