1
|
David M, Mitea R, Silvestru A. Silver(I) complexes based on diorganoselenium(II) ligands with amino or hydroxo functionalities. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
2
|
Tripathi M, Syed R, Stalin A, Malik A, Pande R, Asatkar AK. In vitro investigation of biophysical interactions between Ag(I) complexes of bis(methyl)(thia/selena)salen and ct-DNA via multi-spectroscopic, physicochemical and molecular docking methods along with cytotoxicity study. LUMINESCENCE 2021; 36:1277-1284. [PMID: 33834603 DOI: 10.1002/bio.4054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 03/11/2021] [Accepted: 04/06/2021] [Indexed: 11/10/2022]
Abstract
Four silver(I) (Ag(I)) complexes: 1.PF6 , 2.PF6 , 1.ClO4 and 2.ClO4 of bis(methyl)thia salen (1) and bis (methyl)selena salen (2) with two different counter anions (PF6 - and ClO4 - ) have been investigated for DNA binding properties. In vitro interactional association between the Ag(I) complexes and ct-DNA has been examined by performing spectroscopic titrations on absorption spectrophotometer and fluorescence spectrophotometer. A competitive binding study has also been done using a fluorescence spectrophotometer with ethidium bromide as a classical intercalator. The spectroscopic methods revealed a major groove. Viscometry and agarose gel electrophoresis experiments have also been performed as physicochemical methods to confirm the binding of complex molecules with DNA. Molecular docking analysis has been executed to obtain the theoretical insight into the mode of binding. The docking study demonstrated the major groove binding of all four complexes to the DNA with electrostatic metal-phosphate interactions (between the metal and the backbone of DNA) and hydrophobic interactions. Cytotoxicity of the complexes has been studied on the Human Fibroblast foreskin (HFF) cell line. The cytotoxicity results showed positive gesture for moving ahead to the next level of screening; the values were above 10 μM which are appreciated for the normal cell lines.
Collapse
Affiliation(s)
- Mamta Tripathi
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur, Chhattisgarh, 492010, India
| | - Rabbani Syed
- Nanobiotechnology Unit, Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Antony Stalin
- State Key Laboratory of Subtropical Silviculture, Department of Traditional Chinese Medicine, Zhejiang A&F University, Hangzhou, China
| | - Abdul Malik
- Nanobiotechnology Unit, Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Rama Pande
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur, Chhattisgarh, 492010, India
| | - Ashish K Asatkar
- Department of Chemistry, Government Gundadhur P.G. College, Kondagaon, Chhattisgarh, India
| |
Collapse
|
3
|
Fekete C, Barrett J, Benkő Z, Heift D. Dibismuthates as Linking Units for Bis-Zwitterions and Coordination Polymers. Inorg Chem 2020; 59:13270-13280. [PMID: 32897714 PMCID: PMC7509842 DOI: 10.1021/acs.inorgchem.0c01619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
![]()
Adducts of bismuth
trihalides BiX3 (X = Cl, Br, I) and the PS3 ligand (PS3 = P(C6H4-o-CH2SCH3)3) react with HCl to form inorganic/organic
hybrids with the general formula [HPS3BiX4]2. On the basis of their solid-state
structures determined by single-crystal X-ray diffraction, these compounds
exhibit discrete bis-zwitterionic assemblies consisting of two phosphonium
units [HPS3]+ linked
to a central dibismuthate core [Bi2X8]2– via S→Bi dative interactions. Remarkably, the phosphorus
center of the PS3 ligand undergoes
protonation with hydrochloric acid. This is in stark contrast to the
protonation of phosphines commonly observed with hydrogen halides
resulting in equilibrium. To understand the important factors in this
protonation reaction, 31P NMR experiments and DFT computations
have been performed. Furthermore, the dibismuthate linker was utilized
to obtain the coordination polymer {[AgPS3BiCl3(OTf)]2(CH3CN)2}∞, in which dicationic [Ag(PS3)]22+ macrocycles containing
five-coordinate silver centers connect the dianionic [Bi2Cl6(OTf)2]2– dibismuthate
fragments. The bonding situation in these dibismuthates has been investigated
by single-crystal X-ray diffraction and DFT calculations (NBO analysis,
AIM analysis, charge distribution). The potential
of dibismuthates [Bi2X8]2− as building blocks for the synthesis of bis-zwitterions and coordination
polymers has been shown. The structures of these compounds and the
bonding in the dibismuthate linkers have been studied by single-crystal
X-ray diffraction and DFT calculations.
Collapse
Affiliation(s)
- Csilla Fekete
- Budapest University of Technology and Economics, H-1111 Budapest, Hungary
| | - Jamie Barrett
- Department of Chemistry, Durham University, DH1 3LE Durham, United Kingdom
| | - Zoltán Benkő
- Budapest University of Technology and Economics, H-1111 Budapest, Hungary
| | - Dominikus Heift
- Department of Chemistry, Durham University, DH1 3LE Durham, United Kingdom
| |
Collapse
|
4
|
Pereira R, Pfeifer L, Fournier J, Gouverneur V, Cvengroš J. Twisting the ethano-Tröger's base: the bisamide. Org Biomol Chem 2018; 15:628-633. [PMID: 27966723 DOI: 10.1039/c6ob02359b] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The typically planar amide when incorporated into bicyclic systems can undergo a significant distortion from planarity resulting in physical properties and reactivity that deviate from classical amide behaviour. Herein, we report a succinct protocol that utilises potassium permanganate to selectively α-oxygenate the benzylic position of ethano-Tröger's base derivatives to yield a new class of twisted bisamides. Additionally, we report the first synthesis of an ethano-Tröger's base derivative bearing substituents in the positions ortho to the nitrogen atoms.
Collapse
Affiliation(s)
- Raul Pereira
- Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, UK. and Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology, Zürich, Vladimir-Prelog-Weg-2, 8093 Zürich, Switzerland.
| | - Lukas Pfeifer
- Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, UK.
| | - Jean Fournier
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology, Zürich, Vladimir-Prelog-Weg-2, 8093 Zürich, Switzerland.
| | - Véronique Gouverneur
- Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, UK.
| | - Ján Cvengroš
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology, Zürich, Vladimir-Prelog-Weg-2, 8093 Zürich, Switzerland.
| |
Collapse
|
5
|
Pereira R, Ondrisek P, Kubincová A, Otth E, Cvengroš J. Mild Stereoselective Intermolecular Acetoxylation and Azidation of α-C−H Bonds in Tröger's Bases. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600415] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Raul Pereira
- Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg-2 Zürich Switzerland
| | - Pavol Ondrisek
- Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg-2 Zürich Switzerland
| | - Alžbeta Kubincová
- Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg-2 Zürich Switzerland
| | - Elisabeth Otth
- Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg-2 Zürich Switzerland
| | - Ján Cvengroš
- Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg-2 Zürich Switzerland
| |
Collapse
|
6
|
Kohrt S, Santschi N, Cvengroš J. Accessing N-Stereogenicity through a Double Aza-Michael Reaction: Mechanistic Insights. Chemistry 2016; 22:390-403. [PMID: 26767587 DOI: 10.1002/chem.201502670] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Indexed: 11/10/2022]
Abstract
Further development of the chemistry and applications of chiral compounds that possess configurationally stable stereogenic nitrogen atoms is hampered by the lack of efficient strategies to access such compounds in an enantiomerically pure form. Esters of propiolic acid and chiral alcohols were evaluated as cheap and readily available Michael acceptors in a diastereoselective synthesis of N-stereogenic compounds by means of a double aza-Michael conjugate addition. Diastereomeric ratios of up to 74:26 and high yields were achieved with (-)-menthyl propiolate as a substrate. Furthermore, a detailed mechanistic investigation was undertaken to shed some light on the course of this domino transformation. Kinetic studies revealed that the protic-solvent additive acts as a Brønsted acid and activates the ester toward the initial attack of the tetrahydrodiazocine partner. Conversely, acidic conditions proved unfavorable during the final cyclization step that provides the product.
Collapse
Affiliation(s)
- Sonja Kohrt
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology, Zürich, Vladimir-Prelog-Weg 2, 8093 Zürich (Switzerland).,Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster (Germany)
| | - Nico Santschi
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology, Zürich, Vladimir-Prelog-Weg 2, 8093 Zürich (Switzerland).,Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster (Germany)
| | - Ján Cvengroš
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology, Zürich, Vladimir-Prelog-Weg 2, 8093 Zürich (Switzerland).
| |
Collapse
|
7
|
Pereira R, Otth E, Cvengroš J. Chemo- and Stereoselective NBS-Promoted Intermolecular Oxygenation and Nitrogenation of α-C-H Bonds of Tertiary Diamines. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500062] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
8
|
Prakash O, Joshi H, Kumar U, Sharma AK, Singh AK. Acridine based (S,N,S) pincer ligand: designing silver(i) complexes for the efficient activation of A3 (aldehyde, alkyne and amine) coupling. Dalton Trans 2015; 44:1962-8. [DOI: 10.1039/c4dt02813a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The catalytic efficiency for the A3 reaction with complexes 1 and 2, which have been newly synthesized and structurally characterized, is highest for the pincer complex 2.
Collapse
Affiliation(s)
- Om Prakash
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110016
- India
| | - Hemant Joshi
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110016
- India
| | - Umesh Kumar
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110016
- India
| | - Alpesh K. Sharma
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110016
- India
| | - Ajai K. Singh
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110016
- India
| |
Collapse
|
9
|
Asatkar AK, Panda S, Zade SS. Bis(methyl)(thia/selena)salen Ag(i) complexes: counter-ion induced structural diversity. CrystEngComm 2015. [DOI: 10.1039/c4ce02377c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
10
|
Kole GK, Vivekananda KV, Kumar M, Ganguly R, Dey S, Jain VK. Hemilabile silver(i) complexes containing pyridyl chalcogenolate (S, Se) ligands and their utility as molecular precursors for silver chalcogenides. CrystEngComm 2015. [DOI: 10.1039/c5ce00626k] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A series of silver triphenylphosphine complexes containing pyridyl chacogenolate (S, Se) ligands has been synthesized by employing [AgCl(PPh3)3] and [Ag2(μ-Cl)2(PPh3)4].
Collapse
Affiliation(s)
| | | | - Mukesh Kumar
- Solid State Physics Division
- Bhabha Atomic Research Centre
- Mumbai 400085, India
| | - Rakesh Ganguly
- Division of Chemical and Biological Sciences
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Sandip Dey
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400085, India
| | - Vimal K. Jain
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400085, India
| |
Collapse
|
11
|
Pop A, Mitea R, Silvestru A. Diorganochalcogen(II) ligands of type [R2C(OH)CH2](2-Me2NCH2C6H4)E (E = S, Se, Te; R = Me, Ph), and their silver(I) complexes. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2014.06.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
12
|
Ondrisek P, Schwenk R, Cvengroš J. Synthesis of enantiomerically pure Tröger's base derivatives via chiral disulfoxides. Chem Commun (Camb) 2014; 50:9168-71. [DOI: 10.1039/c4cc03963g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
13
|
Havlík M, Dolenský B, Jakubek M, Král V. Synthesis of Unsymmetrical Tröger's Bases Bearing Groups Sensitive to Reduction. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301517] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
14
|
Kocsis I, Dumitrescu D, Legrand YM, van der Lee A, Grosu I, Barboiu M. Self-sorting of dynamic metallosupramolecular libraries (DMLs) via metal-driven selection. Chem Commun (Camb) 2014; 50:2621-3. [DOI: 10.1039/c3cc49673b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
“Metal-driven” selection between finite mononuclear and polymeric metallosupramolecular species can be quantitatively achieved.
Collapse
Affiliation(s)
- Istvan Kocsis
- Institut Européen des Membranes – ENSCM-UMII-CNRS 5635
- F-34095 Montpellier Cedex 5, France
- Chemistry Department
- Babeş-Bolyai University
- 400028 Cluj-Napoca, Romania
| | - Dan Dumitrescu
- Institut Européen des Membranes – ENSCM-UMII-CNRS 5635
- F-34095 Montpellier Cedex 5, France
| | - Yves-Marie Legrand
- Institut Européen des Membranes – ENSCM-UMII-CNRS 5635
- F-34095 Montpellier Cedex 5, France
| | - Arie van der Lee
- Institut Européen des Membranes – ENSCM-UMII-CNRS 5635
- F-34095 Montpellier Cedex 5, France
| | - Ion Grosu
- Chemistry Department
- Babeş-Bolyai University
- 400028 Cluj-Napoca, Romania
| | - Mihail Barboiu
- Institut Européen des Membranes – ENSCM-UMII-CNRS 5635
- F-34095 Montpellier Cedex 5, France
| |
Collapse
|
15
|
Kamiyama T, Özer MS, Otth E, Deska J, Cvengroš J. Modular Synthesis of Optically Active Tröger's Base Analogues. Chempluschem 2013; 78:1510-1516. [PMID: 31986657 DOI: 10.1002/cplu.201300295] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Indexed: 11/10/2022]
Abstract
For the first time, enantioselective catalysis was applied for the preparation of Tröger's base derivatives affording N-stereogenic building blocks not only in excellent enantiomeric purity but also in an easily scalable fashion. Enzymatic kinetic resolution proved efficient to yield functionalized Tröger's bases, which can be subsequently modified by various chemical methods without any erosion of stereogenic information. In concert with a preparatively convenient protocol for the synthesis of the racemic substrates from commercially available anilines, a highly practicable and flexible route towards a wide range of enantiopure Tröger's base analogues is provided.
Collapse
Affiliation(s)
- Takuya Kamiyama
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology, ETH Zurich, HCI H230, Wolfgang-Pauli-Strasse 10, 8093 Zürich (Switzerland), Fax: (+41) 44-6321310
| | - Merve Sinem Özer
- Department für Chemie, Universität zu Köln, Greinstrasse 4, 50939 Cologne (Germany), Fax: (+49) 221-4705102
| | - Elisabeth Otth
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology, ETH Zurich, HCI H230, Wolfgang-Pauli-Strasse 10, 8093 Zürich (Switzerland), Fax: (+41) 44-6321310
| | - Jan Deska
- Department für Chemie, Universität zu Köln, Greinstrasse 4, 50939 Cologne (Germany), Fax: (+49) 221-4705102
| | - Ján Cvengroš
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology, ETH Zurich, HCI H230, Wolfgang-Pauli-Strasse 10, 8093 Zürich (Switzerland), Fax: (+41) 44-6321310
| |
Collapse
|
16
|
Pereira R, Cvengroš J. Tröger's Base Derived Phosphanes for Suzuki-Miyaura and Buchwald-Hartwig Cross-Coupling Reactions. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300519] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
17
|
Novel motif for bidentate P,N ligands. Application to Pd-catalyzed Suzuki cross-coupling reactions. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.01.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
18
|
Poropudas MJ, Vigo L, Oilunkaniemi R, Laitinen RS. Versatile solid-state coordination chemistry of telluroether complexes of silver(i) and copper(i). Dalton Trans 2013; 42:16868-77. [DOI: 10.1039/c3dt51840j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|