Synthesis, characterization and cytotoxicity of platinum(II)/palladium(II) complexes with 1,3-diaminopropane and 4-toluensulfonyl-l-amino acid dianion
作者:Jinchao Zhang、Lili Ma、Huiru Lu、Yuechai Wang、Shenghui Li、Shuxiang Wang、Guoqiang Zhou
DOI:10.1016/j.ejmech.2012.09.052
日期:2012.12
Eight novel platinum(II)/palladium(II) complexes with 1,3-dap and 4-toluensulfonyl-L-amino acid dianion, [Pt(1,3-dap)(TsalaNO)]center dot 0.5H(2)O (1a), [Pt(1,3-dap)(TsvalNO)] (1b), [Pt(1,3-dap)(TspheNO)] (1c), [Pt(1,3-dap)(TsserNO)] (1d), [Pd(1,3-dap)(TsalaNO)center dot 1.5H(2)O (2a), [Pd(1,3-dap)(TsvalNO)] (2b), [Pd(1,3-dap)(TspheNO)] (2c) and [Pd(1,3-dap)(TsileNO)] (2d) have been synthesized and characterized by elemental analysis, IR, UV, H-1 NMR and mass spectrometry techniques. Crystal structure of the complex 1b has been determined by X-ray diffraction. The cytotoxicity was tested by MTT and SRB assays. The complexes (1a-1d and 2a-2d) exert cytotoxicity against Bel-7402, HL-60, KB and BGC-823, but none of them is more active than cisplatin. The results suggest that metal ions, amino acids and aliphatic N-containing ligands have effect on cytotoxicity, while the IC50 values do not show definite correlation with variation of them. (c) 2012 Elsevier Masson SAS. All rights reserved.