Results 171 to 180 of about 8,043 (217)
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Ribonucleoside triphosphatase in rabbit reticulocytes
Archives of Biochemistry and Biophysics, 1966Ribonucleoside triphosphatase in rabbit reticulocytes, discussing distribution in extracts, behavior in purification of amino acid and ...
I D, Raacke, J, Fiala, S, Matsushita
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Biochemical Pharmacology, 1968
Abstract 6-Methylthiopurine ribonucleoside (MMPR) and several other adenosine analogues have important antitumor properties. These must be converted to the nucleotide by a purine ribonucleoside kinase in order to be biologically active. MMPR is converted to the nucleotide by an enzyme indistinguishable from adenosine kinase.
D H, Ho, J K, Luce, E, Frei
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Abstract 6-Methylthiopurine ribonucleoside (MMPR) and several other adenosine analogues have important antitumor properties. These must be converted to the nucleotide by a purine ribonucleoside kinase in order to be biologically active. MMPR is converted to the nucleotide by an enzyme indistinguishable from adenosine kinase.
D H, Ho, J K, Luce, E, Frei
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Canadian Journal of Biochemistry, 1965
Several aspects of the metabolism of inosine and uridine by Ehrlich ascites carcinoma cells in vitro have been found to be inhibited by ribonucleoside derivatives of four purine analogues. The synthesis of both inosine and uridine by intact tumor cells was profoundly inhibited in the presence of 6-methylmercaptopurine ribonucleoside.
A R, Paterson, A I, Simpson
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Several aspects of the metabolism of inosine and uridine by Ehrlich ascites carcinoma cells in vitro have been found to be inhibited by ribonucleoside derivatives of four purine analogues. The synthesis of both inosine and uridine by intact tumor cells was profoundly inhibited in the presence of 6-methylmercaptopurine ribonucleoside.
A R, Paterson, A I, Simpson
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Didesoxy-Ribonucleoside durch Schmelzkondensation
Journal f�r Praktische Chemie/Chemiker-Zeitung, 1993Dideoxy Ribonucleosides by Fusion Method The dideoxy nucleosides 2, 4 and 6 are synthesized from the 1-O-acetyl-2,3-dideoxyribose derivatives 1, 3 and 5 by fusion with chlorinated purines and other nitrogen heterocycles at 110–120°C without added catalyst. The 1H-NMR and 13C-NMR spectra of the compounds are given.
Elke Diekmann +2 more
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Ribonucleoside 2′,3′-orthocarbonates
J. Chem. Soc. D, 1969Ribonucleosides undergo acid-catalysed exchange with tetramethyl orthocarbonate to give 2′,3′-O-dimethoxymethylidene derivatives.
G. R. Niaz, C. B. Reese
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Reduction of Ribonucleosides to 2′‐Deoxyribonucleosides
Current Protocols in Nucleic Acid Chemistry, 2005AbstractRibonucleosides are converted into 2′‐deoxyribonucleosides in good yields by a four‐step procedure. Selective protection of the 3′‐ and 5′‐hydroxyl groups with 1,3‐dichloro‐1,1,3,3‐tetraisopropyl‐1,3‐disiloxane is followed by functionalization of the 2′‐hydroxyl group with phenoxythiocarbonyl chloride.
Morris J, Robins, Stanislaw F, Wnuk
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Synthesis of 2′-O-Substituted Ribonucleosides
Nucleosides, Nucleotides and Nucleic Acids, 2003AbstractFor Abstract see ChemInform Abstract in Full Text.
V, Serebryany, L, Beigelman
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L-ribonucleosides from L-xylose
Tetrahedron, 1999Abstract L-Xylose was converted into a L-ribose derivative via an oxidation/reduction procedure. The L-ribosyl donor was submitted to a glycosidation reaction according to Vorbruggen's conditions to give L-ribonucleosides (L-uridine, L-cytidine, L-adenosine and L-guanosine) in high yield.
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Partition Chromatography on Starch of Ribonucleosides
Nature, 1948DURING work on ribonucleic acid turnover with nitrogen-15 in this Department, we found it necessary to isolate the different nitrogen-containing substances from small amounts of ribonucleic acid. It was thought that partition chromatography on starch as introduced by Elsden and Synge1 might give a possible solution to our problem. Vischer and Chargaff2
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Über substituierte 2.3‐Benzyliden‐ribonucleoside
Justus Liebigs Annalen der Chemie, 1964AbstractDie Darstellung von [4‐Dimethylamino‐benzyliden]‐ und [2.4‐Dimethoxy‐benzyliden]‐ribonucleosiden wird beschrieben. Diese Verbindungen werden rasch unter milden sauren Bedingungen hydrolysiert und lassen sich mit 2‐Cyanäthylphosphat/Dicyclohexylcarbodiimid phosphorylieren.
Friedrich Cramer +3 more
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