摘要:
Compositions are provided comprising novel di-nitrogen heterocycle compounds containing N-(aminoalkyl) and/or N-(amidoalkyl) groups. An additional situs of functionality is also provided. The compounds and compositions of the invention are useful as antibacterial and other pharmaceutical agents and as intermediates for preparation of other pharmaceutical agents. In addition, compounds of the present invention are useful as research reagents including employment as species for effecting combinatorial synthesis.
摘要:
Functionalized nucleomonomers and oligonucleotides are provided which have increased nuclease resistance and enhanced binding affinity to target DNA or RNA molecules. The oligonucleotides of the present invention comprise at least one 7-deaza-7-iodo-2'-substituted purine, herein referred to as a functionalized nucleomonomer. A preferred 2' substituent on the sugar moiety is a 2'-O-alkoxy alkyl group. More preferably, the 2'-substituent is 2'--O--CH.sub.2 --CH.sub.2 --O--CH.sub.3 (or 2'-methoxyethoxy). Such oligonucleotides are useful as therapeutics for modulating protein expression in organisms and treating disease states susceptible to oligonucleotide therapeutics. Such oligonucleotides are also useful as diagnostics for the diagnosis and detection of disease states, and as research reagents.
摘要:
2'-O-Modified ribosyl nucleosides and modified oligonucleotides containing such nucleotides are disclosed. Oligonucleotides are disclosed that have increased binding affinity as shown by molecular modeling experiments. The 2'-O-modified nucleosides of the invention include ring structures that position the sugar moiety of the nucleosides preferentially in 3' endo geometries.
摘要:
Oligonucleotides and other macromolecules are provided which have increased nuclease resistance, substituent groups for increasing binding affinity to complementary strand, and subsequences of 2'-deoxy-erythro-pentofuranosyl nucleotides that activate RNase H. Such oligonucleotides and macromolecules are useful for diagnostics and other research purposes, for modulating the expression of a protein in organisms, and for the diagnosis, detection and treatment of other conditions susceptible to oligonucleotide therapeutics.
摘要:
Compositions comprising meta-benzylic compounds are prepared. The compositions are useful as antibacterial and as other pharmaceutical agents and as intermediates for preparation of other pharmaceutical agents. In addition, compositions of the present invention are useful as research reagents.
摘要:
Nucleosides and linked nucleosides functionalized to include alkylthiol chemical functionality at ribofuranosyl positions, nucleosidic base positions, or on internucleoside linkages. In certain embodiments, the compounds of the invention further include steroids, reporter molecules, reporter enzymes, lipophilic molecules, peptides or proteins attached to the nucleosides through the alkylthio group.
摘要:
New sub-monomer synthetic methods for the preparation of peptide nucleic acid oligomeric structures are disclosed that provide for the synthesis of both predefined sequence peptide nucleic acid oligomers as well as random sequence peptide nucleic acid oligomers. Further these methods also provide for the incorporation of peptide nucleic acid units or strings of such units with amino acids or strings of amino acids in chimeric peptide nucleic acid-amino acid compounds. Further disclosed are methods of making random libraries of peptide nucleic acids using the fully preformed monomers.
摘要:
Novel compounds that mimic and/or modulate the activity of wild-type nucleic acids. In general, the compounds contain a selected nucleoside sequence wherein the nucleosides are covalently bound through linking groups that contain adjacent nitrogen atoms.
摘要:
Oligonucleotide-mimicking macromolecules that have improved nuclease resistance are provided. Replacement of the normal phosphorodiester inter-sugar linkages found in natural oligonucleotides with three or four atom linking groups provide unique oligonucleotide-mimicking macromolecules that are useful in regulating RNA expression and in therapeutics. Methods of synthesis and use also are disclosed.
摘要:
Tetrahydrofuranyl compounds are provided that are functionalized to include pendant conjugate groups, and which are useful in diagnostic assays and as research reagents. Novel intermediates for the synthesis of the compounds are also provided.