نتایج جستجو برای: isonicotinoyl hydrazones
تعداد نتایج: 1429 فیلتر نتایج به سال:
Introduction: Recent research has reported the cytotoxic potential of hydrazones against various strains cancer cells. Aim: To evaluate anticancer activity in vitro and pharmacokinetic profile six synthesized hydrazonic compounds, identified as vanillin 1-phthalazinylhydrazone (VAN-1); 2,4-dinitrophenylhydrazone (VAN-2); phenylhydrazone cinnamaldehyde (CIN-1); isonicotinoyl hydrazone (CIN-2); 1...
Reaction of a series of (E)-3-phenyl-4-(p-substituted phenyl)-3-buten-2-ones with p-sulfamylphenyl hydrazine in glacial acetic acid gave the corresponding hydrazones, subsequent treatment of which with 30% HCl afforded pyrazole-1-sulphonamides. On the other hand, refluxing of chalcones with either thiosemicarbazide or isonicotinic acid hydrazide in ethanol containing a few drops of acetic acid ...
Of the different growth supplements used in chemically defined media, only transferrin is required for differentiation of tubules in the embryonic mouse metanephros. Since transferrin is an iron-carrying protein, we asked whether iron is crucial for tubulogenesis. Differentiation of metanephric tubules both in whole embryonic kidneys and in a transfilter system was studied. The tissues were gro...
Cobalt(II) complexes of isonicotinoyl hydrazones of two series of ligands have been synthesized and characterized on the basis of elemental analyses, molar conductance, magnetic moment, mass, IR, UV spectral data. Electrochemical behavior of ligands and complexes has been investigated by using cyclic voltammetry. Cyclic voltammetric studies reveal that the oxidation/reduct...
This study examined if complexation with metals increased the antiproliferative activities of chelators of the pyridoxal isonicotinoyl hydrazone (PIH) class. Addition of iron(III) to some PIH analogs markedly depressed their activities, whereas it had little effect on others. The gallium(III) complex of PIH, but not its copper(II) complex, was more efficient than the apochelator at inhibiting [...
Hydrazones are a special class of organic compounds in the Schiff base family. Hydrazones constitute a versatile compound of organic class having basic structure (R1R2C=NNR3R4). The active centers of hydrazone, that is, carbon and nitrogen, are mainly responsible for the physical and chemical properties of the hydrazones and, due to the reactivity toward electrophiles and nucleophiles, hydrazon...
For the purpose of studying the structure-activity relationships of N'-methyl-N'-beta-chloroethylbenzaldehyde hydrazones, new hydrazones were synthesized in which the beta-chloroethyl group was replaced by substituents conveying a partial positive charge at the N' moiety by induction and/or mesomerism. In a preliminary antitumor evaluation, some of these hydrazones showed a cytostatic activity ...
Hydrazones and disulfides have been combined in one dynamic system: hydrazones were exchanged by acid catalysis in the presence of disulfide and a thiol group without interference; neutralization of the reaction medium turns off the exchange of hydrazones and, at the same time, activates thiolate-disulfide exchange.
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