Results 91 to 100 of about 9,338 (256)
Protecting Groups for the Synthesis of Ribonucleic Acids
CHIMIA, 2001 Methods for the regioselective introduction of alkoxymethyl-groups into the 2?-O-position of 5?-O-dimethoxytritylated, nucleobase-protected ribonucleosides and for the N-alkyloxycarbonylation of adenine and guanine nucleosides were developed ...
Stefan Pitsch
doaj
Plant Biotechnology Journal, Volume 23, Issue 6, Page 2110-2124, June 2025.Summary Winter dormancy and bud break are crucial to the viability, adaptability and yield of fruit trees, but not all metabolic activities or regulatory factors involved in maintaining and breaking dormancy are known. Here, winter buds, spanning from natural dormancy to bud break, were collected from ‘Cabernet Sauvignon’ grapevines maintained outdoors
Li Chen +5 more
wiley +1 more source
Applied SciencesMetal species and carbonate are often found as minerals in extraterrestrial rocky bodies. Based on this, the mechanochemical-induced degradation of canonical purine and pyrimidine ribonucleosides into their corresponding nucleobases mediated by some of ...
Gustavo P. Maia +7 more
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In vitro DNA/RNA Adductomics to Confirm DNA Damage Caused by Benzo[a]pyrene in the Hep G2 Cell Line
Frontiers in Chemistry, 2019 In the development of new chemical substances, genetic toxicity evaluations are a high priority for safety risk management. Evaluation of the possibility of compound carcinogenicity with accuracy and at reasonable cost in the early stages of development ...
Toshihide Takeshita, Robert A. Kanaly
doaj +1 more source
Chemical synthesis of novel taurine-containing uridine derivatives [PDF]
, 1905 Recently, novel taurine-containing uridine derivatives were discovered in mammalian mitochondrial tRNAs, and these modified ribonucleosides existed at the first position of the anti-codon.
777 +15 more
core +1 more source
European Journal of Organic Chemistry, Volume 28, Issue 19, May 27, 2025.The biomass pyrolysis product levoglucosenone enables the preparation of the feeding modulator 3‐deoxy‐d‐arabino‐1,4‐lactone and the diastereomer 3‐deoxy‐d‐ribono‐1,4‐lactone. The key steps involve a diastereoselective bromination using an enamine bromination‐hydrolysis strategy on the bicyclic ring‐system followed by selective nucleophilic ...
Johannes Puschnig +2 more
wiley +1 more source
Applications of Microwave in Organic Synthesis: A One-step Synthesis of Ribonucleosides using natural phosphate as solid catalyst [PDF]
, 2013 A clean, efficient and fast method for synthesis of ribonucleosides was developed, using natural phosphate as solid catalyst catalysts supported in a solid phase promoted by MW irradiation.
Lazrek, Hassan B. +3 more
core +1 more source
Nucleotides: Structure and Properties [PDF]
, 2005 Nucleotides consist of a nitrogen-containing base, a five-carbon sugar, and one or more phosphate groups. Cells contain many types of nucleotides, which play a central role in a wide variety of cellular processes, including metabolic regulation and the ...
Bowater, RP
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INTRACELLULAR Leishmania amazonensis KILLING INDUCED BY THE GUANINE NUCLEOSIDE 8-BROMOGUANOSINE
Revista do Instituto de Medicina Tropical de São Paulo, 1998 In this study we investigated the effect of 8-Bromoguanosine, an immunostimulatory compound, on the cytotoxicity of macrophages against Leishmania amazonensis in an in vitro system. The results showed that macrophages treated with 8-Bromoguanosine before
GIORGIO Selma, BARÃO Sandra C.
doaj
Metabolic turnover and dynamics of modified ribonucleosides by ¹³C labeling [PDF]
, 2021 Tandem mass spectrometry (MS/MS) is an accurate tool to assess modified ribonucleosides and their dynamics in mammalian cells. However, MS/MS quantification of lowly abundant modifications in non-ribosomal RNAs is unreliable, and the dynamic features of ...
Dos Santos, MS +4 more
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