New trans dichloro (triphenylphosphine)platinum(II) complexes containing N -(butyl), N -(arylmethyl)amino ligands: Synthesis, cytotoxicity and mechanism of action
作者:Lisa Dalla Via、Aída Nelly García-Argáez、Enzo Agostinelli、Daniela Belli Dell’Amico、Luca Labella、Simona Samaritani
DOI:10.1016/j.bmc.2016.04.067
日期:2016.7
Some new platinum(II) complexes have been prepared, of general formula trans-[PtCl2(PPh3)NH(Bu)CH2Ar}], where the dimension of the Ar residue in the secondary amines has been varied from small phenyl to large pyrenyl group. The obtained complexes, tested in vitro towards a panel of human tumor cell lines showed an interesting antiproliferative effect on both cisplatin-sensitive and -resistant cells
Synthesis and antiproliferative activity of ionic platinum(II) triphenylphosphino complexes
作者:Daniela Belli Dell’ Amico、Luca Labella、Fabio Marchetti、Simona Samaritani、Gustavo Alejandro Hernández-Fuentes、Aída Nelly García-Argáez、Lisa Dalla Via
DOI:10.1016/j.poly.2016.09.019
日期:2016.11
Abstract Ionic platinum(II) complexes [PtCl(PPh3)(L∧L)][BF4] L∧L = 2,2′-bipyridyl (1) 1,10-phenanthroline (2)} and [PtCl(PPh3)(L)2][BF4] L = pyridine (3), dimethyl sulfoxide (4)} were synthesized by dehalogenation of cis-[PtCl2(PPh3)(NCMe)], followed by reaction with the suitable ligand. Chelating nitrogen ligands L∧L afforded single products, which were structurally characterized. In the other cases
摘要离子铂(II)配合物[PtCl(PPh3)(L∧L)] [BF4] L∧L= 2,2'-联吡啶(1)1,10-菲咯啉(2)}和[PtCl(PPh3) (L)2] [BF4] L =吡啶(3),二甲基亚砜(4)}是通过顺式-[PtCl2(PPh3)(NCMe)]脱卤并与合适的配体反应而合成的。螯合的氮配体L∧L提供了单一产物,其在结构上得到了表征。在其他情况下,在溶液中观察到几何异构体(L =吡啶)和/或配位异构体(L =二甲基亚砜)的混合物。在这些情况下,通过单晶X射线衍射获得难溶性异构体的结构。在体外测试了所有复合物对三种人类肿瘤细胞系:MSTO-211H,HeLa和HepG2的抗增殖活性。
Clean oxidations by iodobenzene dichloride: Platinum(IV) complexes containing triphenylphosphine
作者:Daniela Belli Dell' Amico、David Fioco、Luca Labella、Fabio Marchetti、Simona Samaritani
DOI:10.1016/j.poly.2018.01.033
日期:2018.5
Abstract Neutral complexes with generic formula [PtCl2(PPh3)(L)] were efficiently oxidized to [PtCl4(PPh3)(L)] (L = dibenzylamine, p-toluidine, diethanolamine, pyridine and acetonitrile) using PhICl2 The anionic complex [TBA][PtCl3(PPh3)] (TBA = Tetrabutylammonium) was also oxidized to [TBA][PtCl5(PPh3)] with this method. The obtained products were fully characterized by 1H, 13C, 31P and 195Pt NMR
Platinum(II) complexes containing unsaturated ligands. Nucleophilic substitution versus nucleophilic attack to ligand: a stereochemistry driven outcome
作者:Daniela Belli Dell’Amico、Claudio Broglia、Luca Labella、Fabio Marchetti、Daniele Mendola、Simona Samaritani
DOI:10.1016/j.ica.2012.10.038
日期:2013.1
EtCN) towards diethylamine has been investigated. The processes are chemo- (substitution versus addition) and stereo-selective in dependence of the stereochemistry of the precursor. The structures of [SP4-4]-[PtCl(CONEt 2 )(NHEt 2 )(PPh 3 )], [SP4-4]- 1 , trans-[PtCl 2 (NHEt 2 )(PPh 3 )], trans- 2 , and cis -[PtCl 2 (E-)HN C(NEt 2 )Me}(PPh 3 )], cis - 3a , are reported.
Synthesis, antiproliferative and mitochondrial impairment activities of bis-alkyl-amino transplatinum complexes
作者:Lisa Dalla Via、Aída N. García-Argáez、Arianna Adami、Silvia Grancara、Pamela Martinis、Antonio Toninello、Daniela Belli Dell’Amico、Luca Labella、Simona Samaritani
DOI:10.1016/j.bmc.2013.09.025
日期:2013.11
A convenient synthetic route and the characterization of complexes trans-[PtCl2(L)(PPh3)] (L = Et2NH (2), (PhCH2)(2)NH (3), (HOCH2CH2)(2)NH) (4) are reported. The antiproliferative activity was evaluated on three human tumor cell lines. The investigation on the mechanism of action highlighted for the most active complex 4 the capacity to affect mitochondrial functions. In particular, both the induction of the mitochondrial permeability transition phenomenon and an aspecific membrane damage occurred, depending on concentration. (C) 2013 Elsevier Ltd. All rights reserved.