2'-modified oligonucleotides
First Claim
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1. A nuclease resistant compound that hybridizes with RNA or DNA, comprising a plurality of covalently-bound nucleosides that individually include a ribose or deoxyribose sugar portion and a base portion, wherein:
- said nucleosides are joined together by internucleoside linkages such that the base portion of said nucleosides form a mixed base sequence that is complementary to a RNA base sequence or to a DNA base sequence; and
at least one of said nucleosides includes a modified deoxyfuranosyl moiety bearing a 2'"'"'-substituent selected from the group consisting of cyano, fluoromethyl, thioalkoxyl, fluoroalkoxyl, alkylsulfinyl, alkylsulfonyl, allyloxy and alkeneoxy.
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Abstract
Compositions and methods are provided for the treatment and diagnosis of diseases amenable to modulation of the production of selected proteins. In accordance with preferred embodiments, oligonucleotides and oligonucleotide analogs are provided which are specifically hybridizable with a selected sequence of RNA or DNA wherein at least one of the 2'"'"'-deoxyfuranosyl moieties of the nucleoside unit is modified. Treatment of diseases caused by various viruses and other causative agents is provided.
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6 Claims
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1. A nuclease resistant compound that hybridizes with RNA or DNA, comprising a plurality of covalently-bound nucleosides that individually include a ribose or deoxyribose sugar portion and a base portion, wherein:
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said nucleosides are joined together by internucleoside linkages such that the base portion of said nucleosides form a mixed base sequence that is complementary to a RNA base sequence or to a DNA base sequence; and at least one of said nucleosides includes a modified deoxyfuranosyl moiety bearing a 2'"'"'-substituent selected from the group consisting of cyano, fluoromethyl, thioalkoxyl, fluoroalkoxyl, alkylsulfinyl, alkylsulfonyl, allyloxy and alkeneoxy. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification