Zn(II) and Pd(II) Complexes of Thiosemicarbazone‐S‐alkyl Esters Derived from 2/3‐Formylpyridine
摘要:
Representative S-methyl/ethyl-4-H/phenylthiosemicarbazones and their Zn(II) and Pd(II) complexes were synthesized. Characterization of the 1:1 complexes, [Zn(L)Cl-2], [Pd(L)Cl-2], and [Pd(L)Cl]Cl, was accomplished by means of elemental analyses, IR and H-1 NMR spectra. The multidentate S-alkyl thiosemicarbazones coordinate as mono-, bi-, or tridentate ligands depending on the types of the alkyl moiety and metal ion.
Synthesis and antimycobacterial activity of new S-alkylisothiosemicarbazone derivatives
摘要:
A new series of S-alkylisothiosemicarbazones of 3- and 4-pyridincarboxaldehyde and 4-fluoro- and 4-trifluoromethylbenzaldehyde was synthesized and evaluated for biological activity against various Mycobacterium strains. Inhibitory activity against Mycobacterium tuberculosis H37Rv ATCC 27294 and INH-R ATCC 35822 was compared with activity against clinical isolated Mycobacteria as well as against MOTT. Some of newly prepared compounds showed best inhibitory values against clinical isolated Mycobacteria, besides to low citotoxicity values. (C) 2002 Elsevier Science Ltd. All rights reserved.