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Folda A, Scalcon V, Ghazzali M, Jaafar MH, Khan RA, Casini A, Citta A, Bindoli A, Rigobello MP, Al-Farhan K, Alsalme A, Reedijk J. Insights into the strong in-vitro anticancer effects for bis(triphenylphosphane)iminium compounds having perchlorate, tetrafluoridoborate and bis(chlorido)argentate anions. J Inorg Biochem 2015; 153:346-354. [PMID: 26384162 DOI: 10.1016/j.jinorgbio.2015.08.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Accepted: 08/28/2015] [Indexed: 10/23/2022]
Abstract
Three new compounds containing the bis(triphenylphosphane)iminium cation (PPN(+)) with ClO4(-), BF4(-) and [AgCl2](-) as counter anions have been synthesized and structurally characterized. The two derivatives with ClO4(-) and BF4(-) were found to be isostructural by single crystal X-ray diffraction. Interestingly, the three compounds show extremely potent antiproliferative effects against the human cancer cell line SKOV3. To gain insights into the possible mechanisms of biological action, several intracellular targets have been considered. Thus, DNA binding has been evaluated, as well as the effects of the compounds on the mitochondrial function. Furthermore, the compounds have been tested as possible inhibitors of the seleno-enzyme thioredoxin reductase.
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Affiliation(s)
- Alessandra Folda
- Department of Biomedical Sciences, University of Padova, via Ugo Bassi 58/b, 35131 Padova, Italy
| | - Valeria Scalcon
- Institute of Neuroscience (CNR), viale G. Colombo 3, 35131 Padova, Italy
| | - Mohamed Ghazzali
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Kingdom of Saudi Arabia
| | - Mohammed H Jaafar
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Kingdom of Saudi Arabia
| | - Rais Ahmad Khan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Kingdom of Saudi Arabia
| | - Angela Casini
- Department of Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Anna Citta
- Department of Biomedical Sciences, University of Padova, via Ugo Bassi 58/b, 35131 Padova, Italy
| | - Alberto Bindoli
- Institute of Neuroscience (CNR), viale G. Colombo 3, 35131 Padova, Italy
| | - Maria Pia Rigobello
- Department of Biomedical Sciences, University of Padova, via Ugo Bassi 58/b, 35131 Padova, Italy.
| | - Khalid Al-Farhan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Kingdom of Saudi Arabia
| | - Ali Alsalme
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Kingdom of Saudi Arabia
| | - Jan Reedijk
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Kingdom of Saudi Arabia; Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands.
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Beckett MA, Horton PN, Hursthouse MB, Timmis JL. Bis(triphenyl-phospho-ranyl-idene)ammonium iodide. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o319. [PMID: 21579749 PMCID: PMC2979852 DOI: 10.1107/s1600536810000267] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2009] [Accepted: 01/04/2010] [Indexed: 11/10/2022]
Abstract
The title compound, C(36)H(30)NP(2) (+)·I(-), was obtained accidently from crystallization of a reaction mixture containing [(Ph(3)P)(2)N]OH and B(OH)(3), which was contaminated with MeI. There are two independent [(Ph(3)P)(2)N](+) cations and two I(-) anions within the asymmetric unit. The central PNP angles are non-linear [137.6 (2) and 134.4 (2)°] and the phenyl substituents on P centres adopt different conformations within these two cations.
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Fischer HTM, Naumann D, Tyrra W. A Fluent Transition from Triiodide, I3−, to Tris(trifluoromethyltellurate)(1−), [(TeCF3)3]−—A Structural Study. Chemistry 2006; 12:2515-9. [PMID: 16402403 DOI: 10.1002/chem.200501305] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A complete series of compounds with the anions [(TeCF3)(3-x)I(x)]- (x = 0-2) had been prepared and characterised in the solid state and by NMR spectroscopic methods. Dynamic behaviour in solution can be assumed for [(TeCF3)3]- and [(TeCF3)2I]-, while in the solid state all three bis(triphenylphosphoranyliden)ammonium (PNP) salts resemble structures found in triiodides. The molecular structures of [PNP][(TeCF3)(3-x)I(x)]- (x = 0-2) are discussed in comparison with [PNP]I3, I2, and Te2(CF3)2. On this basis, the structures of the [(TeCF3)3]- and [(TeCF3)I2]- ions are comparable to symmetric I3- ions, while the [(TeCF3)2I]- ion resembles an asymmetric I3- unit.
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Affiliation(s)
- Hendrik T M Fischer
- Institut für Anorganische Chemie, Universität zu Köln, Greinstr. 6, 50939 Köln, Germany
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