The antiviral activity of several nucleoside analogues is often limited by their rapid degradation by pyrimidine nucleoside phosphorylases. In an attempt to avoid this degradation, several modified nucleosides have been synthesized. A series of 4'-thio-2'-deoxyuridines exhibits an anti-[herpes simplex virus (HSV)] activity significantly higher (20-600 times) than that shown by the corresponding...

in the present work a ph-dependent cloud point extraction procedure using ph-sensitive hydrogel polymer was applied for preconcentration and spectrophotometric determination of the hg(ii) as its thio micher's ketone complex. central composite design (ccd) and response surface method were applied to design the experiments and find out the optimum conditions. four factors entitled concentration o...

The modification of cell lethality at elevated temperatures by 5-thio-D-glucose, the nearest analog of D-glucose was studied with the use of HeLa cells in the presence or absence of oxygen. When the cells were exposed to temperatures ranging from 40.5-42 degrees for 0.5 to 4 hr in the presence of 5-thio-D-glucose (5 mM), there was a selective potentiation of hyperthermic killing of hypoxic cell...

Although telomerase is an almost universal target for cancer therapy, there has been no effective telomerase targeted inhibitor that has progressed to late stage human clinical trials. Recently, we reported that a telomerase-mediated telomere-disrupting compound, 6-thio-2'-deoxyguanosine (6-thio-dG), was very effective at targeting telomerase positive cancer cells while sparing telomerase silen...

In the title compound, C(16)H(12)N(2)OS(2), the dihedral angles between the mean planes of the central thio-urea core and the thio-phene ring and the naphthalene ring system are 1.8 (2) and 6.45 (18)°, respectively. The mol-ecule adopts a trans-cis conformation with respect to the position of thio-phenoyl and naphthyl groups relative to the S atom across the thiourea C-N bonds. Both the thio-ph...

The asymmetric unit of the title compound, [Cd(NCS)(2)(C(5)H(5)N)(2)](n), consists of two crystallographically independent Cd(II) cations, four thio-cyanato anions and four pyridine ligands. The Cd(II) atoms are each coordinated by four N atoms from two pyridine ligands and two thio-cyanato anions, each in a mutually cis orientation, and by two S atoms from two adjacent thio-cyanato anions with...

In the title nicotinonitrile derivative, C(18)H(15)N(3)OS, the central pyridyl ring makes dihedral angles of 25.22 (10) and 24.80 (16)° with the 4-amino-phenyl and thio-phene rings, respectively. The thio-phene ring is disordered over two orientations by rotation around the C(thio-phene)-C(pyridine) bond; the occupancies are 0.858 (2) and 0.142 (2). The eth-oxy group is slightly twisted from th...

In the title solvate, C15H15N3O2S·CH3OH, the thio-semicarbazone mol-ecule is approximately planar; the maximum deviation from the mean plane is 0.4659 (14) Å and the dihedral angle between the aromatic rings is 9.83 (8)°. This conformation is supported by an intra-molecular N-H⋯N hydrogen bond. In the crystal, the thio-semicarbazone mol-ecules are linked into dimers by pairs of N-H⋯S hydrogen b...

(Z)-5-[2-(Benzo[b]thio-phen-2-yl)-1-(3,5-di-meth-oxy-phen-yl)ethen-yl]-1H-tetrazole methanol monosolvate, C19H16N4O2S·CH3OH, (I), was prepared by the reaction of (Z)-3-(benzo[b]thio-phen-2-yl)-2-(3,5-di-meth-oxy-phen-yl)acrylo-nitrile with tri-butyl-tin azide via a [3 + 2]cyclo-addition azide condensation reaction. The structurally related compound (Z)-5-[2-(benzo[b]thio-phen-3-yl)-1-(3,4,5-tri...