منابع مشابه
SYNTHESIS OF MODIFIED NUCLEOSIDES FOR THE INCORPORATION INTO tRNAs
More than 100 modified nucleosides have been found in naturally occurring RNA sequences. These modifications are involved in the correct folding, in the maintenance of the reading frame during translation and in the proper interaction with enzymes and protein complexes. For an exhaustive study of their function it would be necessary to incorporate by chemical synthesis such modifications at sel...
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This paper reports syntheses, crystal structures and electrochemical results for two ferrocene(Fc)-modified pyrimidine nucleosides that could potentially be used for investigating electron transfer in DNA. Fc was directly attached to the 5-position of deoxyuridine and deoxycytidine via the Stille coupling reaction. Fc-modified uridine was incorporated into DNA trinucleotides with standard solid...
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The synthesis of base modified L-nucleosides is described with pyrrolo[2,3-d]pyrimidines, pyrazolo[3,4-d]pyrimidines, benzimidazoles, and imidazo[1,2-a]-s-triazines as nucleobases. The conformation of the nucleosides is studied and the antiviral activity is evaluated.
متن کاملBase-Modified Nucleosides: Etheno Derivatives
This review presents synthesis and chemistry of nucleoside analogs, possessing an additional fused, heterocyclic ring of the "etheno" type, such as 1,N(6)-ethenoadenosine, 1,N(4)-ethenocytidine, 1,N(2)-ethenoguanosine, and other related derivatives. Formation of ethenonucleosides, in the presence of α-halocarbonyl reagents and their mechanism, stability, and degradation, reactions of substituti...
متن کاملCytidine nucleosides II. Photochemical synthesis of 5-alkylcytidine nucleosides
5-Alkylcytidine nucleosides were synthesized via a photocoupling reaction. 5-Propylcytidine and 5-propyl-2-deoxycytidine have been prepared through the reduction of 5-(3-propenyl)cytidine and its 2'-deoxy derivative, which in turn were prepared by photoirradiation of cytidine or 2'-deoxycytidine in the presence of 3-iodopropene. 5-(2-Hydroxyethyl)cytidine and its derivatives were obtained from ...
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ژورنال
عنوان ژورنال: Current Protocols in Nucleic Acid Chemistry
سال: 2007
ISSN: 1934-9270,1934-9289
DOI: 10.1002/0471142700.nc0100s29