Results 251 to 260 of about 457,288 (287)

Reactions of triorganotin(IV) compounds with L-cysteine, L-cysteine ethyl ester, N-acetyl L-cysteine and glutathione reduced

Inorganica Chimica Acta, 1979
Bis-[triphenylstannyl]-oxid reagiert mit L-Cystein bei 70°C in einer Wasser-EtOH-Mischung nur zu dem entsprechenden Sulfid, wahrend die Reaktion von L-Cysteinethylester mit Bis-[triphenyl(bzw. tributyl)stannyl]-oxid oder SnMe3Cl bei pH 8-11 im gleichen Losunsmittel die Verbindungen (I) liefert.
G. Domazetis, R.J. Magee, B.D. James
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Comparison of N-acetyl-L-cysteine and L-cysteine in respect to their transmembrane fluxes

Biochemistry (Moscow) Supplement Series A: Membrane and Cell Biology, 2009
The objective of the present study was to compare cysteine and N-acetyl-L-cysteine in respect to their transmembrane fluxes and find out which one is a better available precursor for the cells and thus better supports the intracellular glutathione synthesis. Cysteine can directly participate in glutathione synthesis, whereas N-acetyl-L-cysteine must be
Yildiz, D., Arik, M., Cakir, Y., Civi, Z.   +3 more
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L-Cysteinium⋯L-Cysteine Phosphite

Journal of Structural Chemistry
In the system l-cysteine-H3PO3-H2O, a new salt with a dimeric cation, (l-CysH···l-Cys)(H2PO3), has been obtained. The compound exhibits incongruent solubility and is synthesized using an equimolar ratio of l-cysteine and phosphorous acid. It crystallizes in the orthorhombic space group P212121.
Ghazaryan, V., Giester, G., Minkov, V., Boldyreva, E., Petrosyan, A.   +4 more
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Hydrogen-Bonded Interactions in the Systems L-Cysteine - H2SeO3 and L-Cysteine -H2SeO4

International Journal of Chemoinformatics and Chemical Engineering, 2011
Using the density functional theory method at the B3LYP/6-31G(d,p) level of theory, the formation of hydrogen-bonded complexes of L-cysteine with selenious and selenic acids has been studied. In both cases of selenium-containing acids, the complexes occur preferably by cysteine carboxylic group, therewith the enthalpy of formation values consist from ...
Alexei N. Pankratov, Nikolay A. Bychkov, Olga M. Tsivileva   +2 more
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Kinetic studies of the reaction of S-nitroso-L-cysteine with L-cysteine

Bioorganic & Medicinal Chemistry Letters, 1997
Rates for the reaction between L-S-nitrosocysteine and L-cysteine were found to be first order with respect to concentrations of the two reactants in the pH range of 4.85 – 9.41. The second order rate constant was determined to be 3.10 × 10−2 M−1s−1 at pH = 7.4 at 37 °C.
Tomoko Komiyama, Ken Fujimori
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Simultaneous electrochemical determination of l-cysteine and l-cysteine disulfide at carbon ionic liquid electrode

Amino Acids, 2014
A linear sweep voltammetric method is used for direct simultaneous determination of L-cysteine and L-cysteine disulfide (cystine) based on carbon ionic liquid electrode. With carbon ionic liquid electrode as a high performance electrode, two oxidation peaks for L-cysteine (0.62 V) and L-cysteine disulfide (1.3 V) were observed with a significant ...
Afsaneh, Safavi, Raheleh, Ahmadi, Farzaneh Aghakhani, Mahyari   +2 more
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ChemInform Abstract: REACTIONS OF TRIORGANOTIN(IV) COMPOUNDS WITH L‐CYSTEINE, L‐CYSTEINE ETHYL ESTER, N‐ACETYL L‐CYSTEINE AND GLUTATHIONE REDUCED

Chemischer Informationsdienst, 1979
AbstractBis‐[triphenylstannyl]‐oxid reagiert mit L‐Cystein bei 70°C in einer Wasser‐EtOH‐Mischung nur zu dem entsprechenden Sulfid, während die Reaktion von L‐Cysteinethylester mit Bis‐[triphenyl(bzw. tributyl)stannyl]‐oxid oder SnMe3Cl bei pH 8‐11 im gleichen Lösunsmittel die Verbindungen (I) liefert.
G. DAMAZETIS, R. J. MAGEE, B. D. JAMES
openaire   +1 more source

Boron complexes of L-cysteine

Tetrahedron, 1998
Abstract The synthesis of diphenyl [(R)- thiazolidine-4-carboxylato -O,N ] boron 4 , 9- borabicyclo[3.3.1]non-9-yl [(R)- thiazolidine-4-carboxylato -O,N ] boron 9 , 9- borabicyclo[3.3.1]non-9-yl[S-methyl -(R)- cysteinato -O,N ] boron 10 , and 9- borabicyclo[3.3.1]non-9-yl[S-trityl -(R)- cysteinato -O,N ...
Asenslo González, Jaume Granell, Juan F. Pinlella, Angel Alvarez-Larena   +3 more
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Derivatives of S‐9‐fluorenylmethyl‐L‐cysteine

International Journal of Peptide and Protein Research, 1982
The 9‐fluorenylmethyl (Fm) group was examined with respect to its potential for blocking the sulfhydryl function. The S‐Fm group is resistant to acids and to catalytic hydrogenation but is cleaved by ammonia in methanol or by organic bases, such as a 20% solution of piperidine in dimethylformamide.
M, Bodanszky, M A, Bednarek
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Electrochemical Studies of L-Cysteine

ECS Transactions, 2016
The electrochemical behavior of L-cysteine has been studied at platinum, gold, and glassy carbon in various media. In 0.10 M KNO3, L-cysteine undergoes a one-electron oxidation at platinum to form cystine. At gold in pH 7.4 phosphate buffer, evidence has been obtained for an abrupt change in surface structure as L-cysteine is added.
Graham T. Cheek, Matthew A. Worosz
openaire   +1 more source