نتایج جستجو برای: platinum complexes

تعداد نتایج: 156656  

Journal: :Journal of visualized experiments : JoVE 2014
Michael G Apps Ben W Johnson Oliver B Sutcliffe Sarah D Brown Nial J Wheate

Amide coupling reactions can be used to synthesize bispyridine-based ligands for use as bridging linkers in multinuclear platinum anticancer drugs. Isonicotinic acid, or its derivatives, are coupled to variable length diaminoalkane chains under an inert atmosphere in anhydrous DMF or DMSO with the use of a weak base, triethylamine, and a coupling agent, 1-propylphosphonic anhydride. The product...

Journal: :New Journal of Chemistry 2022

Platinum diimine complexes can covalently be grafted onto oxide-free, hydrogen-terminated silicon(111) surfaces into clean and high-quality monolayers. The so modified offer great prospects as photocathodes for solar-driven electrocatalysis.

Journal: :Metal-Based Drugs 2000
M. Galanski M. Berger B. K. Keppler

Hydroxyethyl substituted amineplatinum(II) and (IV) complexes are an interesting class of platinum based antitumour compounds due to their uncoordinated hydroxy groups. These hydroxy groups could play an important role in the mode of action of such complexes with respect to their ability to act as donor or acceptor for hydrogen bonds. Moreover, their chemistry in solution is of interest because...

Journal: :Journal of Korean Medical Science 1995
W. S. Hong Y. I. Min H. T. Kim Y. B. Cho K. H. Kim D. K. Kim

In an attempt to develop a new anticancer platinum complex with greater or equivalent antitumor activity but reduced side effects compared with cisplatin (CDDP), a series of new platinum complexes having a glycolate leaving ligand was synthesized. Among them, five complexes were selected for further development on the basis of adequate water solubility, low nephrotoxicity and high antitumor act...

Journal: :Dalton transactions 2018
Edwin A Baquero Simon Tricard Yannick Coppel Juan C Flores Bruno Chaudret Ernesto de Jesús

The synthesis of metal nanoparticles (NPs) under controlled conditions in water remains a challenge in nanochemistry. Two different approaches to obtain platinum NPs, which involve the treatment of aqueous solutions of preformed sulfonated (NHC)Pt(ii) dimethyl complexes with carbon monoxide, and of (NHC)Pt(0) diolefin complexes with dihydrogen (NHC = N-heterocyclic carbene), are disclosed here....

2015
Anna Markowska Bartosz Kasprzak Karolina Jaszczyńska-Nowinka Jolanta Lubin Janina Markowska

Worldwide research groups are searching for anticancer compounds, many of them are organometalic complexes having platinum group metals as their active centers. Most commonly used cytostatics from this group are cisplatin, carboplatin and oxaliplatin. Cisplatin was used fot the first time in 1978, from this time many platinum derivatives were created. In this review we present biological proper...

Journal: :Dalton transactions 2010
José Ruiz Venancio Rodríguez Concepción de Haro Arturo Espinosa José Pérez Christoph Janiak

A series of new 7-azaindolyl palladium and platinum complexes have been prepared. The X-ray structure determinations of [NBu(4)][M(C(6)F(5))(2)(Haza-N7)(aza-N1)].Haza [M = Pd, Pt; aza = 7-azaindolate (lH-pyrrolo[2,3-b]pyridinate)] have established for the first time the coordination to the same metal centre of both neutral and anionic forms of the ligand. Theoretical calculations at the mPW1B95...

Journal: :Cancer research 2014
Matthew D Hall Katherine A Telma Ki-Eun Chang Tobie D Lee James P Madigan John R Lloyd Ian S Goldlust James D Hoeschele Michael M Gottesman

The platinum drugs cisplatin, carboplatin, and oxaliplatin are highly utilized in the clinic and as a consequence are extensively studied in the laboratory setting. In this study, we examined the literature and found a significant number of studies (11%-34%) in prominent cancer journals utilizing cisplatin dissolved in DMSO. However, dissolving cisplatin in DMSO for laboratory-based studies res...

Journal: :The Journal of chemical physics 2009
Paweł Szarek Kousuke Urakami Chenggang Zhou Hansong Cheng Akitomo Tachibana

The local reactivity of hydrogenated platinum clusters (Pt clusters) has been studied using the regional density functional theory method. We observed that antibond orbitals constitute the preferable binding site for hydrogen molecules H(2). Those sites are characterized by lowered electronic chemical potential and strong directionality and exhibit electrophilic nature. The platinum-dihydrogen ...

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