Synthesis and biological evaluation of mixed ammine/amine platinum(II) complexes with dicarboxylate containing organic nitrate as ligand
摘要:
Two novel platinum(II) complexes cis-[Pt(L')(NH3)X] (where L' = cyclopentylamine or cyclohexylamine, X = 3-(nitrooxy)cyclobutane-1,1-dicarboxylate) were synthesized and spectrally characterized in this study. The purity of complexes 1 and 2 were studied by HPLC-MS spectra, and the contents of complexes 1 and 2 were more than 98%. It was demonstrated that the newly synthesized compounds with dicarboxylate containing organic nitrate as ligand possessed DNA unwinding capability similar to cisplatin by the means of agarose gel electrophoresis. In addition, the antiproliferative study by WST-8 assay revealed that these platinum(II) complexes exhibited considerable cytotoxicity against tested cancer cell lines in vitro compared with positive agents (cisplatin, oxaliplatin and carboplatin), especially complex 1, showing higher in vitro antitumoractivity than oxaliplatin and carboplatin in SGC7901 and A549 cell lines. (C) 2013 Elsevier B.V. All rights reserved.
Antitumor platinum(II) complexes of N-monoalkyl 1R,2R-diamino-cyclohexanes with 3-(nitrooxy)cyclobutane-1,1-dicarboxylate as a leaving group
作者:Jian Zhao、Shaohua Gou、Gang Xu、Lin Cheng
DOI:10.1016/j.ejmech.2014.08.007
日期:2014.10
A series of platinum(II) complexes of N-monoalkyl-1R,2R-diaminocylclohexanes with 3-(nitrooxy) cyclobutane-1,1-dicarboxylate as a leaving group were synthesized and characterized by elemental analysis, IR, H-1, C-13 and Pt-195 NMR spectroscopy together with ESI-MS spectrometer. In vitro cytotoxicity study on these complexes indicated they have considerable cytotoxicity against the tested cancer cell lines. Notably, complexes 2, 4, 6 and 8 showed high cytotoxicity against human A549 and HCT-116 cancer cell lines. The DNA binding of the platinum-based complexes 1 and 3-5 studied by agarose gel electrophoresis was in accordance with cytotoxicity to some extent. Reactions between the corresponding aqua analogues of the resulting complexes and glutathione (GSH) were studied by kinetics method under pseudo-first-order conditions using UV-Vis spectrophotometric technique. The results indicated that the introduction of alkyl moieties in 1R,2R-diaminocyclohexane (1R,2R-DACH) decreased the reaction rates of the aqua analogues of complexes 3-5 and GSH under the tested condition. Moreover, the stability of complex 8 was investigated by HPLC MS technique at different time in 36 h. (C) 2014 Elsevier Masson SAS. All rights reserved.
Nitric Oxide Donor-Based Platinum Complexes as Potential Anticancer Agents
作者:Jian Zhao、Shaohua Gou、Yanyan Sun、Runting Yin、Zhimei Wang
DOI:10.1002/chem.201201605
日期:2012.11.5
complexes containing organic nitrate ligands were investigated as anticanceragents. The complexes, which were stable in aqueous solution, showed cytotoxicity that was superior to that of the corresponding parent compound (carboplatin), thus suggesting an interesting synergy between the ability of the nitrate‐based ligands to release nitric oxide and the ability of the platinum moiety to inhibit DNA synthesis
Synthesis and biological evaluation of mixed ammine/amine platinum(II) complexes with dicarboxylate containing organic nitrate as ligand
作者:Jian Zhao、Shaohua Gou、Gang Xu
DOI:10.1016/j.ica.2013.09.034
日期:2014.1
Two novel platinum(II) complexes cis-[Pt(L')(NH3)X] (where L' = cyclopentylamine or cyclohexylamine, X = 3-(nitrooxy)cyclobutane-1,1-dicarboxylate) were synthesized and spectrally characterized in this study. The purity of complexes 1 and 2 were studied by HPLC-MS spectra, and the contents of complexes 1 and 2 were more than 98%. It was demonstrated that the newly synthesized compounds with dicarboxylate containing organic nitrate as ligand possessed DNA unwinding capability similar to cisplatin by the means of agarose gel electrophoresis. In addition, the antiproliferative study by WST-8 assay revealed that these platinum(II) complexes exhibited considerable cytotoxicity against tested cancer cell lines in vitro compared with positive agents (cisplatin, oxaliplatin and carboplatin), especially complex 1, showing higher in vitro antitumoractivity than oxaliplatin and carboplatin in SGC7901 and A549 cell lines. (C) 2013 Elsevier B.V. All rights reserved.