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Keto-fluorothiopyranosyl nucleosides: a convenient synthesis of 2-and 4-keto-3-fluoro-5-thioxylopyranosyl thymine analogs
(2011)
A novel series of fluorinated keto-beta-D-5-thioxylopyranonucleosides bearing thymine as the heterocyclic base have been designed and synthesized. Deprotection of 3-deoxy-3-fluoro-5-S-acetyl-5-thio-D-xylofuranose (1) and ...
Kinetic and in silico analysis of the slow-binding inhibition of human poly(A)-specific ribonuclease (PARN) by novel nucleoside analogues
(2012)
Poly(A)-specific ribonuclease (PARN) is a 3'-exoribonuclease that efficiently degrades poly(A) tails and regulates, in part, mRNA turnover rates. We have previously reported that adenosine- and cytosine-based glucopyranosyl ...
Competitive Inhibition of Human Poly(A)-Specific Ribonuclease (PARN) by Synthetic Fluoro-Pyranosyl Nucleosides
(2009)
Poly(A)-specific ribonuclease (PARN) is a cap-interacting deadenylase that mediates, together with other exonucleases, the eukaryotic mRNA turnover and thus is actively involved in the regulation of gene expression. ...
STEREOCONTROLLED FACILE SYNTHESIS AND BIOLOGICAL EVALUATION OF (3 ' S) AND (3 ' R)-3 '-AMINO (AND AZIDO)-3 '-DEOXY PYRANONUCLEOSIDES
(2012)
This article describes the synthesis of (3'S) and (3'R)-3'-amino-3'-deoxy pyranonucleosides and their precursors (3'S) and (3'R)-3'-azido-3'-deoxy pyranonucleosides. Azidation of 1,2:5,6-di-O-isopropylidene-3-O-toluenesu ...
Conformational analysis of two novel cytotoxic C2-substituted pyrrolo 2,3-f quinolines in aqueous media, organic solvents, membrane bilayers and at the putative active site
(2012)
We have performed: (i) conformational analysis of two novel cytotoxic C2-substituted pyrrolo[2,3-f]quinolines Se and 5g in deuterated dimethylsulfoxide (DMSO-d(6)) utilizing NOE results from NMR spectroscopy; (ii) molecular ...
3 '-Axial CH2OH Substitution on Glucopyranose does not Increase Glycogen Phosphorylase Inhibitory Potency. QM/MM-PBSA Calculations Suggest Why
(2012)
Glycogen phosphorylase is a molecular target for the design of potential hypoglycemic agents. Structure-based design pinpointed that the 3'-position of glucopyranose equipped with a suitable group has the potential to form ...
New short route to unsaturated fluoroketonucleosides: Case of 5-fluoro-1-(6-O-acetyl-3,4-di-deoxy-3-fluoro-beta-D-glycero-hex-3-eno-py ranos-2-ulosyl) uracil
(2005)
The proposed short synthesis involves two key steps: Oxidation of the isopropylidene derivative of the 3 fluoronucleoside possessing a free hydroxyl group in 2-position and acetylation of deprotected 3-fluoro-2-ketonucleoside ...
Branched-chain sugar nucleosides: stereocontrolled synthesis and bioevaluation of novel 3 '-C-trifluoromethyl and 3 '-C-methyl pyranonucleosides
(2015)
A new series of 3 '-C-trifluoromethyl- and 3 '-C-methyl-beta-D-allopyranonucleosides of 5-fluorouracil and their deoxy derivatives has been designed and synthesized. Treatment of ketosugar 1 with trifluoromethyltrimethylsilane ...
Stereocontrolled synthesis of 4 '-C-cyano and 4 '-C-cyano-4 '-deoxy pyrimidine pyranonucleosides as potential chemotherapeutic agents
(2012)
A new series of 4'-C-cyano and 4'-C-cyano-4'-deoxy pyrimidine pyranonucleosides has been designed and synthesized. Commercially available 1,2,3,4,6-penta-O-acetyl-D-mannopyranose (1) was condensed with silylated 5-fluorouracil, ...