Synthesis, characterization, and biological activity of platinum II, III, and IV pivaloamidine complexes
作者:Marilù Sinisi、Valentina Gandin、Teresa Saltarella、Francesco P. Intini、Concetta Pacifico、Christine Marzano、Giovanni Natile
DOI:10.1007/s00775-014-1146-1
日期:2014.10
the present study we describe the synthesis and characterization of pivaloamidine complexes of platinum(II), (cis and trans-[PtCl2(NH3)Z-HN=C(t-Bu)NH2}] and cis and trans-[PtCl2Z-HN=C(t-Bu)NH2}2]), platinum(III) ([Pt2Cl4HN=C(t-Bu)NH}2(NH3)2]), and platinum(IV) (trans-[PtCl4(NH3)Z-HN=C(t-Bu)NH2}] and trans-[PtCl4Z-HN=C(t-Bu)NH2}2]). The cytotoxicity of all new Pt complexes was tested toward a panel
Molecular interaction fields vs. quantum-mechanical-based descriptors in the modelling of lipophilicity of platinum(<scp>iv</scp>) complexes
作者:Giuseppe Ermondi、Giulia Caron、Mauro Ravera、Elisabetta Gabano、Sabrina Bianco、James A. Platts、Domenico Osella
DOI:10.1039/c2dt32360e
日期:——
We report QSAR calculations using VolSurf descriptors to model the lipophilicity of 53 Pt(IV) complexes with a diverse range of axial and equatorial ligands. Lipophilicity is measured using an efficient HPLC method. Previous models based on a subset of these data are shown to be inadequate, due to incompatibility of whole molecule descriptors between carboxylato and hydroxido ligands. Instead, the interaction surfaces of complexes with various probes are used as independent descriptors. Partial least squares modelling using three latent variables results in an accurate (R2 = 0.92) and robust model (Q2 = 0.87) of lipophilicity, that moreover highlights the importance of size and hydrophobicity terms and the modest relevance of hydrogen bonding.
Synthesis, multinuclear magnetic resonance and crystal structures of Pt(II) complexes containing amines and bidentate carboxylate ligands
作者:Fernande D. Rochon、Gassan Massarweh
DOI:10.1016/j.ica.2006.04.014
日期:2006.9
synthetic method for the synthesis of the complexes cis-Pt(amine)2R(COO)2 is compared to two other methods involving the use of either barium dicarboxylate or sodium carboxylate. Pt(II) compounds with monodentate and bidentate amines were studied. The reaction involves the use of a silver dicarboxylato complex, which is the intermediate in the new synthetic procedure. The crystalstructure of the silver intermediate
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