Chemical Research in Chinese Universities ›› 2006, Vol. 22 ›› Issue (3): 278-282.

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Synthesis, Characterization and Cytotoxicity of Ammine/Methylamine Platinum(Ⅱ) Complexes with Carboxylates

ZHANG Jin-chao1, SHEN Yong1, YANG Meng-su2   

  1. 1. Department of Chemistry, College of Chemistry & Environmental Science,Hebei University, Baoding 071002, P. R. China;
    2. Department of Biology and Chemistry, City University of Hong Kong, Hong Kong, P. R. China
  • Received:2005-08-04 Online:2006-06-24 Published:2011-08-06

Abstract: Seven novel platinum (Ⅱ) complexes [Pt (Ⅱ) (NH3) (CH3NH2) X2] (Ⅰ-Ⅶ) (X: CH3COO- ,CH2 ClCOO- , CHCl2COO-, C6H5-COO- , p-CH3O-C6H4-COO- , p-NH2-C6 H4-COO- , p-NO2-C6H4-COO-) were prepared and characterized by means of elemental analysis, molar conductivity, thermal analysis,IR, UV, and 1 H NMR spectrometries. The cytotoxicity against HCT-8, BGC-823, MCF-7, EJ, and HL-60 cell lines increases in the following sequence: cisplatin >Ⅳ>Ⅴ>Ⅵ>Ⅶ>Ⅰ>Ⅱ>Ⅲ. Moreover, the complexes(Ⅰ-Ⅶ) display substantially greater activities against EJ and HL-60 cell lines than those against the cell lines from other carcinomas. They can induce a concentration-dependent accumulation of HL-60 cells in the G2/M phase of the cell cycle as cisplatin. There is no significant correlation between total DNA platination levels and cytotoxicity of the complexes.

Key words: Ammine/methylamine platinum(Ⅱ) complex, Synthesis, Cytotoxicity, Cell cycle, DNA-binding