Oligonucleotides with modified phosphate and modified carbohydrate moieties at the respective chain termini
First Claim
1. An oligonucleotide of the formula ##STR77## in which Y and T are identical or different and are O, S, Se or NH, Z and W are identical or different and are O, S or NH, at least one of the substituents Y and Z in at least one of the phosphate moieties being different from oxygen, X is selected from the group consisting of ##STR78## R is H or ##STR79## R1 is alkyl of 1 to 5 carbon atoms or phenyl, Σ
- is a whole number equal ton when X is --CHOHCH2 OR, orn-1 when X is ##STR80## wherein n is an integer of 2 to 10, m is an integer of 1 to 3, and A is adenine or a derivative selected from the group consisting of ##STR81## and the physiologically acceptable salts thereof.
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Accused Products
Abstract
The invention relates to novel oligonucleotides, the process for their preparation and their biological uses as mediators of the action of interferon. The oligonucleotides according to the invention have the formula: ##STR1## in which Y and T are identical or different and represent particularly O, S, Z and W are identical or different and represent particularly O, S, one at least of the elements Y and Z being different from oxygen, X represents particularly --CHOHCH2 OH, Σ is a whole number equal to or greater than 2, A represents adenine or one of its derivatives. These oligonucleotides have antiviral use.
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Citations
13 Claims
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1. An oligonucleotide of the formula ##STR77## in which Y and T are identical or different and are O, S, Se or NH, Z and W are identical or different and are O, S or NH, at least one of the substituents Y and Z in at least one of the phosphate moieties being different from oxygen, X is selected from the group consisting of ##STR78## R is H or ##STR79## R1 is alkyl of 1 to 5 carbon atoms or phenyl, Σ
- is a whole number equal to
n when X is --CHOHCH2 OR, or n-1 when X is ##STR80## wherein n is an integer of 2 to 10, m is an integer of 1 to 3, and A is adenine or a derivative selected from the group consisting of ##STR81## and the physiologically acceptable salts thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- is a whole number equal to
Specification