| 摘要 |
Oligonucleotides having the general formula, <IMG> in which B denotes an arbitrary nucleobase, A equals 0 or CH2; X or Z equals O, S, NH or denotes CH2 whereby X and Z can be the same or different, V and W denote O, S, Se, NH2 or an alkyloxy residue, or OH or SH whereby V and W can be the same or different in a monomer unit and L is a H atom or a partner of a binding pair and C equals -O-R and R is an alkyl group with at least 1 C atom which may be modified if desired, or it denotes an alkenyl or alkinyl group with at least 2 C atoms which may be modified if desired, whereby the modification consists of a substitution by one or several halogen, cyano, carboxy, hydroxy, nitro or/and mercapto residues, and n is an arbitrary whole number, are stable antisense probes which bind specifically. Such oligonucleotides and polynucleotides may be used for the regulation of gene expression and as pharmaceutical agents. They are synthesized from the corresponding 2'-substituted monomers according to well-known methods, preferably on a solid phase.
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