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  • Title: Palladium(II) complexes of NS donor ligandsderived from S-methyl-dithiocarbazate, S-benzyldithiocarbazateand thiosemicarbazide as antiamoebic agents.
    Author: Neelam B, Mannar M, Fehmida N, Alok B, Sudha B, Amir A.
    Journal: Eur J Med Chem; 2000 May; 35(5):481-6. PubMed ID: 10889327.
    Abstract:
    Synthesis of palladium(II) complexes of the type [PdLCl(2)] (where L = Schiff bases derived from 2-acetylpyridine and S-methyldithiocarbazate, S-benzyldithiocarbazate or thiosemicarbazide) have been isolated by the reaction of [Pd(DMSO)(2)C1(2)] and respective ligands. The complexes have been characterized by elemental analyses, IR, 1H-NMR, electronic spectra and thermogravimetric analysis. It is concluded that the thionic sulphur and the azomethine nitrogen atoms of the ligands are bonded to the metal ion. Assessment of antiamoebic activity against Entamoeba histolytica (strain HK-9) was done by using a microdilution method. [Pd(2-Acpy-SMDT)C1(2)] and Pd(2-Acpy-SBDT)C1(2)] have shown greater activity, whereas [Pd(2-Acpy-TSC)C1(2)] showed similar activity as metronidazole in vitro.
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