Oligonucleotides containing N-2 substituted purines
First Claim
1. An oligonucleotide having at least one nucleotide of formula:
- ##STR7## wherein G is CH or N;
X is NH2 or OH;
Y is RQ or NHRQ, wherein said R is a hydrocarbyl group having from 2 to about 20 carbon atoms; and
Q is H, NH2, polyalkylamino, hydrazines, hydroxylamines, imidazoles, imidazole amides, alkylimidazoles, tetrazole, triazole, or alkoxy groups; and
Z is ribose, 2'"'"'-O alkyl ribose, or deoxyribose.
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Abstract
This invention presents novel purine-based compounds for inclusion into oligonucleotides. The compounds of the invention, when incorporated into oligonucleotides are especially useful as "antisense" agents--agents that are capable of specific hybridization with a nucleotide sequence of an RNA. Oligonucleotides are used for a variety of therapeutic and diagnostic purposes, such as treating diseases, regulating gene expression in experimental systems, assaying for RNA and for RNA products through the employment of antisense interactions with such RNA, diagnosing diseases, modulating the production of proteins, and cleaving RNA in site specific fashions. The compounds of the invention include novel heterocyclic bases, nucleosides, and nucleotides. When incorporated into oligonucleotides, the compounds of the invention can be useful for modulating the activity of RNA.
519 Citations
29 Claims
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1. An oligonucleotide having at least one nucleotide of formula:
- ##STR7## wherein G is CH or N;
X is NH2 or OH; Y is RQ or NHRQ, wherein said R is a hydrocarbyl group having from 2 to about 20 carbon atoms; and
Q is H, NH2, polyalkylamino, hydrazines, hydroxylamines, imidazoles, imidazole amides, alkylimidazoles, tetrazole, triazole, or alkoxy groups; andZ is ribose, 2'"'"'-O alkyl ribose, or deoxyribose. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
- ##STR7## wherein G is CH or N;
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2. An oligonucleotide having at least one nucleotide of formula:
- ##STR8## wherein G is CH or N;
X is NH2 or OH; Y is R-aminoalkylamino or NHR-aminoalkylamino, wherein said R is a hydrocarbyl group having from 2 to about 20 carbon atoms; and
Z is ribose, 2'"'"'-O alkyl ribose, or deoxyribose.
- ##STR8## wherein G is CH or N;
Specification