Abstract:
Compositions and methods for modulating the activity of RNA are disclosed. In accordance with preferred embodiments, antisense compositions are prepared comprising targeting and reactive portions. The reactive portions preferably comprise one or two imidazole functionalities conjugated to the targeting oligonucleotide via linkers with or without intervening intercalating moieties. Therapeutics, diagnostics and research methods also are disclosed, as are synthetic nucleosides and nucleoside fragments that can be elaborated into oligonucleotides.
Abstract:
Certain trisubstituted pyrrolopyrimidine nucleosides are prepared from toyocamycin and have shown antitumor activity against L1210 and P388 murine leukemia. The particular compounds of interest are selected from the following structural formula: ##STR1## where X is haloY is halo; --NH.sub.2 ; --SH, --SR (where R is lower alkyl, benzyl); --OR (where OR is methoxy or alkoxy or where alk is C1-C6); amino (where the amino is --NH.sub.2, -alkyl amino or -dialkyl amino and alkyl is C1-C6); gamma gamma dimethyl allyl amino; benzyl amino; phenyl amino; selenoZ is CN; CXNH.sub.2 where X is .dbd.0, .dbd.S, or .dbd.Se, .dbd.NH, .dbd.NHNH.sub.2, .dbd.NOH. OR Z is = --CH.sub.2 NH.sub.2, --COR.dbd.NHRib.dbd..beta.-D-ribofuranosylPreferred members of this group of compounds are shown by the following structural formula: ##STR2## where X is ClY is Cl or NH.sub.2Z is CN, CONH.sub.2, or C.dbd.NOH--NH.sub.2These compounds are further identified as NSC #145387 (Compound 5) ##STR3## NSC #177369 (Compound 6) ##STR4## NSC #182864 (Compound 8) ##STR5## NSC #180526 (Compound 10) ##STR6## These compounds at dosages of 13 - 200 mg/kg of body weight administered every other day on the standard six-day schedule showed activity against both L1210 and P388 murine leukemia (Protocol 11, National Institutes of Health, November 11, 1972).
Abstract:
Compounds that modulate the conversion of AMP to adenosine by 5′-nucleotidase, ecto, and compositions containing the compounds and methods for synthesizing the compounds, are described herein. The use of such compounds and compositions for the treatment and/or prevention of a diverse array of diseases, disorders and conditions, including cancer- and immune-related disorders, that are mediated by 5′-nucleotidase, ecto is also provided.
Abstract:
The present invention is directed to prodrugs of compound A:
which are nucleoside reverse transcriptase translocation inhibitors (NRTTI) and are useful in the inhibition of HIV reverse transcriptase. The present invention also relates to the use of these compounds for prophylaxis of infection by HIV, treatment of infection by HIV, and prophylaxis, treatment, and delay in the onset or progression of AIDS and/or AIDS-related complexes.
Abstract:
The present disclosure provides pyrrolopyrimidine nucleoside analogs of the Formula I, Formula IA, Formula IB, or Formula II and phospholipid conjugates and pharmaceutical compositions thereof wherein Rc and A are defined herein. Also presented are methods of treating and/or preventing viral infection and/or viral infection-associated disease or disorder with one or more compounds of Formula I, Formula IA, Formula IB, or Formula II.
Abstract:
The present application is directed to, in part, nucleotide analogs with a novel design of a 3′-OH reversible terminator that comprises an enzyme-cleavable linkage.