Novel platinum(II) and palladium(II) complexes with cyclin-dependent kinase inhibitors: synthesis, characterization and antitumour activity. 2006

Lucie Szucová, and Zdenek Trávnícek, and Marek Zatloukal, and Igor Popa
Department of Inorganic Chemistry, Palacký University, Krízkovského 10, CZ-771 47 Olomouc, Czech Republic.

The Pt(II) and Pd(II) complexes of the types cis-[Pt(L(1))(2)Cl(2)].H(2)O (1), cis-[Pt(L(2))(2)Cl(2)].3H(2)O (2), trans-[Pd(L(1))(2)Cl(2)].H(2)O (3), trans-[Pd(L(2))(2)Cl(2)].H(2)O (4), trans-[Pd(L(3))(2)Cl(2)].2DMF (5) and trans-[Pd(L(4))(2)Cl(2)].2DMF (6) (L(1)-L(4)=cyclin-dependent kinase inhibitors derived from 6-benzylamino-9-isopropylpurine) have been prepared and characterized. The complexes have been studied by elemental analyses, conductivity measurements, ES+ MS, FT-IR, (1)H, (13)C and (195)Pt NMR spectra, differential scanning calorimetry and thermogravimetric analysis. The molecular structures of L(1), trans-[Pd(L(3))(2)Cl(2)].2DMF (5) and trans-[Pd(L(4))(2)Cl(2)].2DMF (6) have been determined by single crystal X-ray analysis. The complexes have been tested in vitro due to their presumable anticancer activity against the following human cancer cell lines: K-562, MCF7, G-361 and HOS. Satisfying results were obtained for the complex 1 with IC(50) values of 6 microM acquired against G-361 as well as against HOS cell lines. The lowest values of IC(50) were achieved for the complexes 3 and 4 against MCF 7 cell line with IC(50) 3 microM(for 3) and also 3 microM (for 4).

UI MeSH Term Description Entries
D008958 Models, Molecular Models used experimentally or theoretically to study molecular shape, electronic properties, or interactions; includes analogous molecules, computer-generated graphics, and mechanical structures. Molecular Models,Model, Molecular,Molecular Model
D009682 Magnetic Resonance Spectroscopy Spectroscopic method of measuring the magnetic moment of elementary particles such as atomic nuclei, protons or electrons. It is employed in clinical applications such as NMR Tomography (MAGNETIC RESONANCE IMAGING). In Vivo NMR Spectroscopy,MR Spectroscopy,Magnetic Resonance,NMR Spectroscopy,NMR Spectroscopy, In Vivo,Nuclear Magnetic Resonance,Spectroscopy, Magnetic Resonance,Spectroscopy, NMR,Spectroscopy, Nuclear Magnetic Resonance,Magnetic Resonance Spectroscopies,Magnetic Resonance, Nuclear,NMR Spectroscopies,Resonance Spectroscopy, Magnetic,Resonance, Magnetic,Resonance, Nuclear Magnetic,Spectroscopies, NMR,Spectroscopy, MR
D010165 Palladium A chemical element having an atomic weight of 106.4, atomic number of 46, and the symbol Pd. It is a white, ductile metal resembling platinum, and following it in abundance and importance of applications. It is used in dentistry in the form of gold, silver, and copper alloys.
D002152 Calorimetry, Differential Scanning Differential thermal analysis in which the sample compartment of the apparatus is a differential calorimeter, allowing an exact measure of the heat of transition independent of the specific heat, thermal conductivity, and other variables of the sample. Differential Thermal Analysis, Calorimetric,Calorimetric Differential Thermal Analysis,Differential Scanning Calorimetry,Scanning Calorimetry, Differential
D004791 Enzyme Inhibitors Compounds or agents that combine with an enzyme in such a manner as to prevent the normal substrate-enzyme combination and the catalytic reaction. Enzyme Inhibitor,Inhibitor, Enzyme,Inhibitors, Enzyme
D000970 Antineoplastic Agents Substances that inhibit or prevent the proliferation of NEOPLASMS. Anticancer Agent,Antineoplastic,Antineoplastic Agent,Antineoplastic Drug,Antitumor Agent,Antitumor Drug,Cancer Chemotherapy Agent,Cancer Chemotherapy Drug,Anticancer Agents,Antineoplastic Drugs,Antineoplastics,Antitumor Agents,Antitumor Drugs,Cancer Chemotherapy Agents,Cancer Chemotherapy Drugs,Chemotherapeutic Anticancer Agents,Chemotherapeutic Anticancer Drug,Agent, Anticancer,Agent, Antineoplastic,Agent, Antitumor,Agent, Cancer Chemotherapy,Agents, Anticancer,Agents, Antineoplastic,Agents, Antitumor,Agents, Cancer Chemotherapy,Agents, Chemotherapeutic Anticancer,Chemotherapy Agent, Cancer,Chemotherapy Agents, Cancer,Chemotherapy Drug, Cancer,Chemotherapy Drugs, Cancer,Drug, Antineoplastic,Drug, Antitumor,Drug, Cancer Chemotherapy,Drug, Chemotherapeutic Anticancer,Drugs, Antineoplastic,Drugs, Antitumor,Drugs, Cancer Chemotherapy
D013055 Spectrophotometry, Infrared Spectrophotometry in the infrared region, usually for the purpose of chemical analysis through measurement of absorption spectra associated with rotational and vibrational energy levels of molecules. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) IR Spectra,Infrared Spectrophotometry,IR Spectras,Spectra, IR
D017671 Platinum Compounds Inorganic compounds which contain platinum as the central atom. Platinum Compound,Platinum Compounds, Inorganic,Platinum-Containing Compound,Platinum-Containing Compounds,Compound, Platinum,Compound, Platinum-Containing,Compounds, Inorganic Platinum,Compounds, Platinum,Compounds, Platinum-Containing,Inorganic Platinum Compounds,Platinum Containing Compound,Platinum Containing Compounds
D018360 Crystallography, X-Ray The study of crystal structure using X-RAY DIFFRACTION techniques. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) X-Ray Crystallography,Crystallography, X Ray,Crystallography, Xray,X Ray Crystallography,Xray Crystallography,Crystallographies, X Ray,X Ray Crystallographies
D018844 Cyclin-Dependent Kinases Protein kinases that control cell cycle progression in all eukaryotes and require physical association with CYCLINS to achieve full enzymatic activity. Cyclin-dependent kinases are regulated by phosphorylation and dephosphorylation events. Cyclin-Dependent Kinase,Cyclin-Dependent Protein Kinase,cdk Proteins,Cyclin-Dependent Protein Kinases,Cyclin Dependent Kinase,Cyclin Dependent Kinases,Cyclin Dependent Protein Kinase,Cyclin Dependent Protein Kinases,Kinase, Cyclin-Dependent,Kinase, Cyclin-Dependent Protein,Protein Kinase, Cyclin-Dependent

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