An improved synthesis for a series of 1-hydroxy-2(1H)-pyridinone-based octadentate ligands is reported. The mixed chelate, octadentate ligand, 3,4,3-LI(1,2-Me-3,2-HOPO), was designed, synthesized, and tested for in vivo chelation of Pu in a mouse model. This ligand incorporates both 1,2-HOPO and Me-3,2-HOPO metal chelating units; the latter has higher affinity toward actinide ions than does 1,2...

A series of fluorescent iron chelators has been synthesized such that a fluorescent function is covalently linked to a 3-hydroxypyridin-4-one. In the present study, the fluorescent iron chelators were loaded into isolated rat hepatocytes. The intracellular fluorescence was not only quenched by an addition of a highly lipophilic 8-hydroxyquinoline-iron(III) complex but also was dequenched by the...

Pyridazinone and pyridinone analogs were reported as a novel class of inhibitors of genotype 1 HCV NS5B polymerase. Here we report a receptor based 3D QSAR (quantitative structure-activity relationship) for set of 100 molecules. Receptor binding conformation of the molecule gives an added advantage to understand ligand receptor interactions required for bioactivity. Induced-fit docking approach...

Invasive sea lamprey (Petromyzon marinus) and exotic aquatic plants like Eurasian watermilfoil (Myriophyllum spicatum) pose environmental economic threats to ecosystems, sometimes within the same water bodies. The lampricide TFM (3-trifluoromethyl-4-nitrophenol) herbicide fluridone [1-methyl-3-phenyl-5-(3-trifluoromethylphenyl)-4(1 H)-pyridinone] are routinely used control these invasives in Gr...

Abstract A new series of pyridine-2-one and pyrazole derivatives were designed synthesized based on cyanoacrylamide containing 2,4-dichlro aniline 6-methyl 2-amino pyridine as an aryl group. Condensation 3a–d with different active methylene (malononitrile, ethyl cyanoacetate cyanoacetamide, acetoacetate) in the presence piperidine basic catalyst afforded corresponding pyridinone 4a–c , 5 9 13 ....