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Within this project methods for the preparation of the unnatural nucleic acids 3'-O-Methyl-pRNA and pDNA (3'-Desoxy-pRNA) were developed. The pairing properties of these two systems have been examined and compared with that of pRNA. All of the three system ...
The prepn. and the pairing properties of the new 3'-deoxyribopyranose (4'->2')-oligonucleotide (= p-DNA) pairing system, based on 3'-deoxy-b-D-ribo-pyranose nucleosides is presented. D-Xylose was efficiently converted to the prefunctionalized 3-deoxyribopy ...
Our group is working on the development of reliable access to biol. relevant, long, and modified RNA sequences. Here, we briefly present the chem. synthesis of such sequences with 2'-O-triisopropylsilyloxymethyl (= 2'-O-tom) protected ribonucleoside phosph ...
2005
By automated synthesis, we prepd. hybrid oligonucleotides consisting of covalently linked RNA and p-DNA sequences (p-DNA = 3'-deoxyribopyranose (4'->2')-oligonucleotides). The pairing properties of corresponding hybrid duplexes formed from fully complement ...
2002
The detn. of the soln. structure of small non-natural oligopeptides and oligonucleotides by NMR, which is one of the main research topics of our group, is illustrated on the example of an 8-mer p-DNA duplex. P-DNA, the 3'-desoxy analog of p-RNA, forms an h ...
Two sets of RNA phosphoramidites, carrying the (fluoride-labile) 2'-O-[(triisopropylsilyl)oxy]methyl (tom) group and the (photolabile) [(R)-1-(2-nitrophenyl)ethoxy]methyl ((R)-npeom) group, were prepd. The two protecting groups were completely orthogonal t ...
