221229-74-9Relevant articles and documents
IMPROVED SYNTHESIS OF ?2.2.1|BICYCLO NUCLEOSIDES
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Page/Page column 18; 38, (2008/06/13)
A synthesis of [2.2.1]bicyclo nucleosides which is shorter and provides higher overall yields proceeds via the key intermediate of the general formula III, wherein R4 and R5 are, for instance, sulfonates and R7 is, for instance, a halogen or an acetate. F
LNA (Locked Nucleic Acids): Synthesis of the adenine, cytosine, guanine, 5-methylcytosine, thymine and uracil bicyclonucleoside monomers, oligomerisation, and unprecedented nucleic acid recognition
Koshkin, Alexei A.,Singh, Sanjay K.,Nielsen, Poul,Rajwanshi, Vivek K.,Kumar, Ravindra,Meldgaard, Michael,Olsen, Carl Erik,Wengel, Jesper
, p. 3607 - 3630 (2007/10/03)
LNA (Locked Nucleic Acids), consisting of 2'-O,4'-C-methylene bicyclonucleoside monomers, is efficiently synthesized and its nucleic acid recognition potential evaluated for six different nucleobases, namely adenine, cytosine, guanine, 5-methylcytosine, thymine and uracil. Unprecedented increases (+3 to +8°C per modification) in the thermal stability of duplexes towards both DNA and RNA were obtained when evaluating mixed sequences of partly or fully modified LNA. Studies of mis-matched sequences show that LNA obey the Watson-Crick base pairing rules with generally improved selectivities compared to the corresponding unmodified reference strands.