1
|
Pramanik S, Saha P, Ghosh P, Mukhopadhyay C. Substrate Switchable Pathway for Selective Construction of Bridged Dibenzo[b,f][1,5]diazocines and Bridged Spiromethanodibenzo[ b, e]azepines. ACS Omega 2023; 8:20579-20588. [PMID: 37323403 PMCID: PMC10268268 DOI: 10.1021/acsomega.3c01046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 05/17/2023] [Indexed: 06/17/2023]
Abstract
An operationally simple method for the synthesis of bridged dibenzo[b,f][1,5]diazocines and bridged spiromethanodibenzo[b,e]azepines exhibiting bridged eight-membered and seven-membered molecular architecture is reported. This unique approach is based on substrate selective mechanistic pathway, including an unprecendented aerial oxidation-driven mechanism for the synthesis of bridged spiromethanodibenzo[b,e]azepines. The reaction is highly atom economic, and in addition, it allows the construction of two rings and four bonds in a single operation under metal-free condition. The easy availability of β enaminone and ortho phathalaldehyde as starting materials and the simple operation make this approach suitable for the preparation of important dibenzo[b,f][1,5]diazocine and spiromethanodibenzo[b,e]azepine cores.
Collapse
Affiliation(s)
- Sayan Pramanik
- Department
of Chemistry, University of Calcutta, 92 APC Road, Kolkata 700009, India
| | - Pinaki Saha
- Department
of Chemistry, R. K. Mission Residential
College, Narendrapur, Kolkata 700103, India
| | - Prasanta Ghosh
- Department
of Chemistry, R. K. Mission Residential
College, Narendrapur, Kolkata 700103, India
| | - Chhanda Mukhopadhyay
- Department
of Chemistry, University of Calcutta, 92 APC Road, Kolkata 700009, India
| |
Collapse
|
2
|
Ivanov DS, Zaitseva ER, Smirnov AY, Baleeva NS, Baranov MS. Synthesis of 5,11-dialkyl-5,6,11,12-tetrahydro-6,12-epoxydibenzo[b,f][1,5]diazocines from 2-alkylaminobenzaldehydes. Chem Heterocycl Compd (N Y) 2022. [DOI: 10.1007/s10593-022-03097-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
3
|
Zhou H, Sun YW, Xu JB, Liang PY, Wan Y, Yuan R, Wu H. Tröger’s base derivative-catalyzed one-step one-pot synthesis of chromenofuroindoles and naphthofuroindoles. Res Chem Intermed 2022. [DOI: 10.1007/s11164-022-04664-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
4
|
Abstract
![]()
A novel method for
the synthesis of epoxydibenzo[b,f][1,5]diazocines exhibiting a V-shaped molecular
architecture is reported. The unique approach is based on unprecedented
base-catalyzed, solvent-free autocondensation and cross-condensation
of fluorinated o-aminophenones. The structure of
the newly synthesized diazocines was confirmed independently by X-ray
analysis and chiroptical methods. The rigidity of the diazocine scaffold
allowed for the separation of the racemate into single enantiomers
that proved to be thermally stable up to 140 °C. Furthermore,
the inertness of the diazocine scaffold was demonstrated by performing
a series of typical transformations, including transition metal-catalyzed
reactions, proceeding without affecting the bis-hemiaminal subunit.
Collapse
Affiliation(s)
- Michał Michalak
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Bartosz Bisek
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Michał Nowacki
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Marcin Górecki
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| |
Collapse
|
5
|
Sharma A, Pathak D. Secondary Metabolites of Plant Origin Containing Carbazole as Lead Molecule: A Review. CTM 2021. [DOI: 10.2174/2215083805666190617110019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The continuous attempt of drug discovery and search for a potential drug
molecules with promising pharmacological activities is always of immense interest. Most of
those chemical compounds having active pharmacological effects contain heterocyclic nucleus
or compounds. Heterocyclic compounds clutch a particular place among pharmaceutically
active natural and synthetic compounds. The ability to serve both as biomimetics and
reactive pharmacophores of the heterocyclic nucleus is incredible and principally contributed
to their unique value as traditional key elements of many drugs. These heterocyclic nuclei
offer a huge area for new lead molecules in drug discovery and for the generation of activity
relationships with biological targets to enhance their pharmacological effects. In the
heterocyclic nucleus, the hydrogen bond acceptors and donors arranged in a manner of a
semi-rigid skeleton in heterocyclic rings and therefore can present a varied display of significant
pharmacophores. Lead identification and optimization of a probable drug target can
be achieved by the generation of chemically diverse heterocyclic pharmacophores with different
groups or substituents. Herein, an attempt is made to review and summarize the naturally
occurring carbazole containing alkaloids obtained from Murraya, Causena and Glycosmis
species and their potential towards anticancer activity. Carbazole is a tricyclic heterocyclic
molecule and an integral part of naturally occurring alkaloids possessing various
potential biological activities such as anticancer, antimicrobial and antiviral. Due to the high
binding affinity of carbazole towards nucleic acid/ receptor and mimicking their biological
activity, carbazole derived alkaloids exhibit the potential cytotoxic effect.
Collapse
Affiliation(s)
- Atul Sharma
- School of Pharmaceutical Sciences, MVN University, Palwal, Haryana-121105, India
| | - Devender Pathak
- Pharmacy College, Uttar Pradesh University of Medical Sciences, Saifai, Etawah, UP-206130, India
| |
Collapse
|
6
|
Ibrahim AA, Ali KA, Hafez NAA, Elsayed MA, Mohamed KMH, Hosni HM, Amr AEGE, Elsayed EA. Synthesis and Characterization of Macrocyclic Chiral Tröger's Base Phenhomazine Candidates as Anticancer Agent. Front Chem 2021; 8:633065. [PMID: 33748073 PMCID: PMC7976657 DOI: 10.3389/fchem.2020.633065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 12/23/2020] [Indexed: 11/26/2022] Open
Abstract
1,4,7,10-Tetraoxa[10](2,8)trögerophane 5 was synthesized from its corresponding precursors. Heating of 2 with p-nitrophenoxide afforded bis(p-nitrophenyl)ether 3, which was treated with hydrazine hydrate to give bis(p-aminophenyl)ether 4. Treatment of 4 with paraformaldehyde and triflouroacetic anhydride gave trögerophane 5. Reaction of 5 with trifluroacetic anhydride afforded phenhomazine derivative 6, which was treated with potassium carbonate to afford tetrahydrophenhomazine 7. Finally, reaction of 7 with phenacylchloride, bromoacetic acid, or ethyl bromoacetate in the presence of triethyl amine under reflux, afforded the corresponding macrocyclic compounds 8, 9 and 10, respectively. The synthesized trögerophane,precursors and its newly synthesized phenhomazines derivatives were screened for anticancer activity. Results revealed that 1,4,7,10-tetraoxa[10](2,8)trögerophane had a promising selectivity towards colon cancer cell line with an IC50 of 92.7 µg/ml.
Collapse
Affiliation(s)
| | - Korany A Ali
- Applied Organic Chemistry Department, National Research Centre, Giza, Egypt
| | | | - Mohamed A Elsayed
- Applied Organic Chemistry Department, National Research Centre, Giza, Egypt
| | | | - Hanaa M Hosni
- Pesticide Chemistry Department, National Research Center, Cairo, Egypt
| | - Abd El-Galil E Amr
- Pharmaceutical Chemistry Department, Drug Exploration and Development Chair (DEDC), College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.,Organic Chemistry Department, Chemical Industries Research Division, National Research Centre, Cairo, Egypt
| | - Elsayed A Elsayed
- Bioproducts Research Chair, Zoology Department, Faculty of Science, King Saud University, Riyadh, Saudi Arabia.,Chemistry of Natural and Microbial Products Department, National Research Centre, Cairo, Egypt
| |
Collapse
|
7
|
Ibrahim AA, Mohamed SF, El-Hashash MA, Abd-Elghaffar HS, Mohamed KMH, Hosni HM, Amr AE, Elsayed EA. Synthesis, Characterization, and Anticancer Activity of Novel
Macrocyclic Indenedione Based on the Tröger’s Base and N,N′-Disubstituted Phenhomazine
Candidates. RUSS J GEN CHEM+ 2020. [DOI: 10.1134/s1070363220090224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
8
|
Dusso D, Lanza PA, Montejano HA, Ramírez CL, Parise AR, Vera DA, Moyano EL, Chesta CA. Long-range photoinduced charge separation in tröger bases D/A dyads. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2019.112159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
9
|
Bosmani A, Guarnieri‐Ibáñez A, Lacour J. Configurational Lability of Imino‐SubstitutedEthano TrögerBases. Insight on the Racemization Mechanism. Helv Chim Acta 2019. [DOI: 10.1002/hlca.201900021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Alessandro Bosmani
- Département de Chimie OrganiqueUniversité de Genève Quai Ernest Ansermet 30 CH-1211 Geneva 4 Switzerland
| | - Alejandro Guarnieri‐Ibáñez
- Département de Chimie OrganiqueUniversité de Genève Quai Ernest Ansermet 30 CH-1211 Geneva 4 Switzerland
| | - Jérôme Lacour
- Département de Chimie OrganiqueUniversité de Genève Quai Ernest Ansermet 30 CH-1211 Geneva 4 Switzerland
| |
Collapse
|
10
|
Cao WB, Liu BB, Xu XP, Ji SJ. Cooperation of copper and dioxygen for the site-selective construction of benzo[1,5]diazocin-6(5H)-ones from indoles and enaminone analogues. Org Chem Front 2018. [DOI: 10.1039/c7qo01154g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new route for the preparation of benzo[1,5]diazocines from indoles and enaminone analogues is described.
Collapse
Affiliation(s)
- Wen-Bin Cao
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Bei-Bei Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Xiao-Ping Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| |
Collapse
|
11
|
Sawatzky E, Drakopoulos A, Rölz M, Sotriffer C, Engels B, Decker M. Experimental and theoretical investigations into the stability of cyclic aminals. Beilstein J Org Chem 2016; 12:2280-2292. [PMID: 28144295 PMCID: PMC5238614 DOI: 10.3762/bjoc.12.221] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 10/12/2016] [Indexed: 11/23/2022] Open
Abstract
Background: Cyclic aminals are core features of natural products, drug molecules and important synthetic intermediates. Despite their relevance, systematic investigations into their stability towards hydrolysis depending on the pH value are lacking. Results: A set of cyclic aminals was synthesized and their stability quantified by kinetic measurements. Steric and electronic effects were investigated by choosing appropriate groups. Both molecular mechanics (MM) and density functional theory (DFT) based studies were applied to support and explain the results obtained. Rapid decomposition is observed in acidic aqueous media for all cyclic aminals which occurs as a reversible reaction. Electronic effects do not seem relevant with regard to stability, but the magnitude of the conformational energy of the ring system and pKa values of the N-3 nitrogen atom. Conclusion: Cyclic aminals are stable compounds when not exposed to acidic media and their stability is mainly dependent on the conformational energy of the ring system. Therefore, for the preparation and work-up of these valuable synthetic intermediates and natural products, appropriate conditions have to be chosen and for application as drug molecules their sensitivity towards hydrolysis has to be taken into account.
Collapse
Affiliation(s)
- Edgar Sawatzky
- Pharmazeutische und Medizinische Chemie, Institut für Pharmazie und Lebensmittelchemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany
| | - Antonios Drakopoulos
- Pharmazeutische und Medizinische Chemie, Institut für Pharmazie und Lebensmittelchemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany
| | - Martin Rölz
- Pharmazeutische und Medizinische Chemie, Institut für Pharmazie und Lebensmittelchemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany
| | - Christoph Sotriffer
- Pharmazeutische und Medizinische Chemie, Institut für Pharmazie und Lebensmittelchemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany
| | - Bernd Engels
- Institut für Physikalische und Theoretische Chemie, Julius-Maximilians-Universität Würzburg, Emil-Fischer-Straße 42, D-97074 Würzburg, Germany
| | - Michael Decker
- Pharmazeutische und Medizinische Chemie, Institut für Pharmazie und Lebensmittelchemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany
| |
Collapse
|
12
|
Muthukrishnan I, Karuppasamy M, Nagarajan S, Maheswari CU, Pace V, Menéndez JC, Sridharan V. Synthesis of 6,12-Epiminodibenzo[b,f][1,5]diazocines via an Ytterbium Triflate-Catalyzed, AB 2 Three-Component Reaction. J Org Chem 2016; 81:9687-9694. [PMID: 27682636 DOI: 10.1021/acs.joc.6b01764] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
An efficient and selective procedure for the synthesis of epiminodibenzo[b,f][1,5]diazocines involving a AB2 three-component reaction is developed. Two equivalents of suitably substituted 2-aminoarylaldehydes reacted with arylamines in the presence of Yb(OTf)3 to afford the desired products in high yields. The reaction is highly atom-economic and waste-free, in addition to allowing the generation of two heterocyclic rings and four C-N bonds in a single operation. Significantly, this approach is complementary to the existing literature procedures, affording arylamine-derived products that could not be accessed previously. A plausible mechanism is proposed involving an imine formation-intermolecular annulation-intramolecular iminium ion cyclization sequence.
Collapse
Affiliation(s)
- Isravel Muthukrishnan
- Organic Synthesis Group, Department of Chemistry, School of Chemical and Biotechnology, SASTRA University , Thanjavur, Tamil Nadu 613401, India
| | - Muthu Karuppasamy
- Organic Synthesis Group, Department of Chemistry, School of Chemical and Biotechnology, SASTRA University , Thanjavur, Tamil Nadu 613401, India
| | - Subbiah Nagarajan
- Organic Synthesis Group, Department of Chemistry, School of Chemical and Biotechnology, SASTRA University , Thanjavur, Tamil Nadu 613401, India
| | - C Uma Maheswari
- Organic Synthesis Group, Department of Chemistry, School of Chemical and Biotechnology, SASTRA University , Thanjavur, Tamil Nadu 613401, India
| | - Vittorio Pace
- Department of Pharmaceutical Chemistry, University of Vienna , Althanstrasse 14, A-1090 Vienna, Austria
| | - J Carlos Menéndez
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense , 28040 Madrid, Spain
| | - Vellaisamy Sridharan
- Organic Synthesis Group, Department of Chemistry, School of Chemical and Biotechnology, SASTRA University , Thanjavur, Tamil Nadu 613401, India
| |
Collapse
|
13
|
Yuan R, Li MQ, Xu JB, Huang SY, Zhou SL, Zhang P, Liu JJ, Wu H. Synthesis and optical properties of novel Tröger's base derivatives. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.05.042] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
14
|
Qiu F, Wan Y, Huang SY, Zhou QJ, Cui H, Chu YH, Zhou SL, Han XE, Wu H. Crystal structure of 1,1′-diformyl-4,4′-(6 H,12 H-5,11-methano-dibenzo[ b, f][ 11, 5]diazocine-2,8-diyl)dibenzene, C 29H 22N 2O 2. Z KRIST-NEW CRYST ST 2016. [DOI: 10.1515/ncrs-2015-0193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C29H22N2O2, triclinic, P1̅ (no. 2), a = 22.4995(6) Å, b = 9.9370(3) Å, c = 21.6466(6) Å, β = 115.941(1)°, V = 4352.1(2) Å3, Z = 4, R
gt
(F) = 0.0487, wR
ref
(F
2
) = 0.1473, T = 296 K.
Collapse
Affiliation(s)
- Feng Qiu
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiansu Province, P. R. China
| | - Yu Wan
- School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, Jiangu Province, P. R. China
| | - Shu-ying Huang
- School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, Jiangu Province, P. R. China
| | - Qiu-ju Zhou
- School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, Jiangu Province, P. R. China
| | - Hao Cui
- School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, Jiangu Province, P. R. China
| | - Yan-huan Chu
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiansu Province, P. R. China
| | - Sheng-Liang Zhou
- School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, Jiangu Province, P. R. China
| | - Xiang-en Han
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiansu Province, P. R. China
| | - Hui Wu
- School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, Jiangu Province, P. R. China
| |
Collapse
|
15
|
Reddy MB, Reddy PG, Shailaja M, Manjula A, Rao TP. CuI-catalyzed amination of Tröger's base halides: a convenient method for synthesis of unsymmetrical Tröger's bases. RSC Adv 2016. [DOI: 10.1039/c6ra21437a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A convenient and efficient Ullmann type copper catalyzed amination method has been developed for direct amination of halogen substituted Tröger's base analogues.
Collapse
Affiliation(s)
- Manda Bhaskar Reddy
- Crop Protection Chemicals Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Potuganti Gal Reddy
- Crop Protection Chemicals Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Myadaraboina Shailaja
- Crop Protection Chemicals Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Alla Manjula
- Crop Protection Chemicals Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Tadikamalla Prabhakar Rao
- Centre for Nuclear Magnetic Resonance and Structural Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
| |
Collapse
|
16
|
Shishkanova TV, Havlík M, Dendisová M, Matějka P, Král V. Synthesis and deposition of a Tröger’s base polymer on the electrode surface for potentiometric detection of a neuroblastoma tumor marker metabolite. Chem Commun (Camb) 2016; 52:11991-11994. [DOI: 10.1039/c6cc06203b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We propose an innovative approach to detect a low molecular weight metabolite of neuroblastoma.
Collapse
Affiliation(s)
- T. V. Shishkanova
- Department of Analytical Chemistry
- University of Chemistry and Technology in Prague
- Technická 5
- Czech Republic
| | - M. Havlík
- Department of Analytical Chemistry
- University of Chemistry and Technology in Prague
- Technická 5
- Czech Republic
| | - M. Dendisová
- Department of Physical Chemistry
- University of Chemistry and Technology in Prague
- Technická 5
- Czech Republic
| | - P. Matějka
- Department of Physical Chemistry
- University of Chemistry and Technology in Prague
- Technická 5
- Czech Republic
| | - V. Král
- Department of Analytical Chemistry
- University of Chemistry and Technology in Prague
- Technická 5
- Czech Republic
| |
Collapse
|
17
|
Chu YH, Wan Y, Liu ZT, Han XE, Wu H. Synthesis and aggregation-induced emission properties of dicyanovinyl substituted Tröger’s bases. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.11.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
18
|
Kaplánek R, Havlík M, Dolenský B, Rak J, Džubák P, Konečný P, Hajdúch M, Králová J, Král V. Synthesis and biological activity evaluation of hydrazone derivatives based on a Tröger's base skeleton. Bioorg Med Chem 2015; 23:1651-9. [PMID: 25737088 DOI: 10.1016/j.bmc.2015.01.029] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 01/14/2015] [Accepted: 01/16/2015] [Indexed: 01/16/2023]
Abstract
We report the design and synthesis of novel anticancer agents based on bis-hydrazones separated by a rigid Tröger's base skeleton. This novel approach combines a biologically active moiety (hydrazone) with this scaffold (Tröger's base) to construct DNA intercalators. Evaluation of the anticancer activity of these agents using seven cancer cell lines and two healthy cell lines found that several derivatives had potent anticancer activity and excellent selectivity indexes toward cancer cells. The antimicrobial activities were tested on a set of thirteen bacterial stains, but the prepared compounds were not active. Complexation studies using biologically important metal ions demonstrated that these compounds are able to bind Cu(2+), Fe(3+), Co(2+), Ni(2+) and Zn(2+). DNA intercalation studies showed that the compounds themselves do not interact with DNA, but their metallocomplexes do interact, most likely via intercalation into DNA.
Collapse
Affiliation(s)
- Robert Kaplánek
- Department of Analytical Chemistry, Faculty of Chemical Engineering, University of Chemical Technology, Technická 5, 166 28 Prague 6, Czech Republic
| | - Martin Havlík
- Department of Analytical Chemistry, Faculty of Chemical Engineering, University of Chemical Technology, Technická 5, 166 28 Prague 6, Czech Republic
| | - Bohumil Dolenský
- Department of Analytical Chemistry, Faculty of Chemical Engineering, University of Chemical Technology, Technická 5, 166 28 Prague 6, Czech Republic
| | - Jakub Rak
- Department of Analytical Chemistry, Faculty of Chemical Engineering, University of Chemical Technology, Technická 5, 166 28 Prague 6, Czech Republic
| | - Petr Džubák
- Institute of Molecular and Translational Medicine, Palacky University and University Hospital in Olomouc, Faculty of Medicine and Dentistry, Hněvotínská 5, 775 15 Olomouc, Czech Republic
| | - Petr Konečný
- Institute of Molecular and Translational Medicine, Palacky University and University Hospital in Olomouc, Faculty of Medicine and Dentistry, Hněvotínská 5, 775 15 Olomouc, Czech Republic
| | - Marián Hajdúch
- Institute of Molecular and Translational Medicine, Palacky University and University Hospital in Olomouc, Faculty of Medicine and Dentistry, Hněvotínská 5, 775 15 Olomouc, Czech Republic
| | - Jarmila Králová
- Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Vladimír Král
- Department of Analytical Chemistry, Faculty of Chemical Engineering, University of Chemical Technology, Technická 5, 166 28 Prague 6, Czech Republic.
| |
Collapse
|
19
|
Aroche DMP, Toldo JM, Descalzo RR, Gonçalves PFB, Rodembusch FS. Photophysical characterisation of Tröger's base molecular scaffolds: a combined theoretical and experimental study. NEW J CHEM 2015. [DOI: 10.1039/c5nj01166c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The photophysics of Tröger's base in the ground and excited states was performed by comparing experimental and theoretical properties predicted using TD-DFT calculations.
Collapse
Affiliation(s)
- Débora Muller Pimentel Aroche
- Grupo de Pesquisa em Fotoquímica Orgânica Aplicada
- Universidade Federal do Rio Grande do Sul – Instituto de Química
- CEP 91501-970 Porto Alegre-RS
- Brazil
| | - Josene Maria Toldo
- Grupo de Química Teórica e Computacional
- Universidade Federal do Rio Grande do Sul – Instituto de Química
- Avenida Bento Gonçalves
- CEP 91501-970 Porto Alegre-RS
- Brazil
| | - Rodrigo Roceti Descalzo
- Grupo de Química Teórica e Computacional
- Universidade Federal do Rio Grande do Sul – Instituto de Química
- Avenida Bento Gonçalves
- CEP 91501-970 Porto Alegre-RS
- Brazil
| | - Paulo Fernando Bruno Gonçalves
- Grupo de Química Teórica e Computacional
- Universidade Federal do Rio Grande do Sul – Instituto de Química
- Avenida Bento Gonçalves
- CEP 91501-970 Porto Alegre-RS
- Brazil
| | - Fabiano Severo Rodembusch
- Grupo de Pesquisa em Fotoquímica Orgânica Aplicada
- Universidade Federal do Rio Grande do Sul – Instituto de Química
- CEP 91501-970 Porto Alegre-RS
- Brazil
| |
Collapse
|
20
|
Banerjee S, Bright SA, Smith JA, Burgeat J, Martinez-Calvo M, Williams DC, Kelly JM, Gunnlaugsson T. Supramolecular Approach to Enantioselective DNA Recognition Using Enantiomerically Resolved Cationic 4-Amino-1,8-naphthalimide-Based Tröger’s Bases. J Org Chem 2014; 79:9272-83. [DOI: 10.1021/jo501711g] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Swagata Banerjee
- School
of Chemistry and Trinity Biomedical Sciences Institute, University of Dublin, Trinity College Dublin, Dublin 2, Ireland
| | - Sandra A. Bright
- School
of Biochemistry and Immunology and Trinity Biomedical Sciences Institute, Trinity College, Dublin 2, Ireland
| | - Jayden A. Smith
- School
of Chemistry and Trinity Biomedical Sciences Institute, University of Dublin, Trinity College Dublin, Dublin 2, Ireland
| | - Jeremy Burgeat
- School
of Chemistry and Trinity Biomedical Sciences Institute, University of Dublin, Trinity College Dublin, Dublin 2, Ireland
| | - Miguel Martinez-Calvo
- School
of Chemistry and Trinity Biomedical Sciences Institute, University of Dublin, Trinity College Dublin, Dublin 2, Ireland
| | - D. Clive Williams
- School
of Biochemistry and Immunology and Trinity Biomedical Sciences Institute, Trinity College, Dublin 2, Ireland
| | - John M. Kelly
- School
of Chemistry and Trinity Biomedical Sciences Institute, University of Dublin, Trinity College Dublin, Dublin 2, Ireland
| | - Thorfinnur Gunnlaugsson
- School
of Chemistry and Trinity Biomedical Sciences Institute, University of Dublin, Trinity College Dublin, Dublin 2, Ireland
| |
Collapse
|
21
|
Manda BR, Alla M, Ganji RJ, Addlagatta A. Discovery of Tröger's base analogues as selective inhibitors against human breast cancer cell line: design, synthesis and cytotoxic evaluation. Eur J Med Chem 2014; 86:39-47. [PMID: 25140752 DOI: 10.1016/j.ejmech.2014.08.044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 08/11/2014] [Accepted: 08/12/2014] [Indexed: 10/24/2022]
Abstract
A library of structurally diverse Tröger's base analogues has been constructed via unusual amination of methylene bridge employing Vilsmeier-Haack conditions as well as by the incorporation of five and six membered heterocycles on the aromatic core of Tröger's base framework. The constructed structurally diverse frameworks were evaluated for their cytotoxic activities against a panel of three human cancer lines A549 (lung adenocarcinoma), MDAMB-231 (breast) and SK-N-SH (neuroblastoma). From the activity profile obtained, a redesign of Tröger's base analogues led to the construction of more potent molecular entities. The study led to development of a series of compounds with MDAMB-231 cell line specific cytotoxicity. Of the 30 compounds synthesized and evaluated, 7 compounds were found to possess cytotoxicity that is equivalent or better than standard drug doxorubicin against MDAMB-231 cell line while only one compound was found to be active against SK-N-SH cell line.
Collapse
Affiliation(s)
- Bhaskar Reddy Manda
- Crop Protection Chemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 607, India
| | - Manjula Alla
- Crop Protection Chemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 607, India.
| | - Roopa Jones Ganji
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 607, India
| | - Anthony Addlagatta
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 607, India.
| |
Collapse
|
22
|
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] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
23
|
|
24
|
|
25
|
Ipóthová Z, Paulíková H, Čižeková L, Hunáková Ľ, Labudová M, Grolmusová A, Janovec L, Imrich J. Subcellular localization of proflavine derivative and induction of oxidative stress—In vitro studies. Bioorg Med Chem 2013; 21:6726-31. [DOI: 10.1016/j.bmc.2013.08.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Revised: 06/14/2013] [Accepted: 08/05/2013] [Indexed: 11/30/2022]
|
26
|
|
27
|
Rúnarsson ÖV, Artacho J, Wärnmark K. The 125thAnniversary of the Tröger's Base Molecule: Synthesis and Applications of Tröger's Base Analogues. European J Org Chem 2012. [DOI: 10.1002/ejoc.201201249] [Citation(s) in RCA: 113] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
28
|
Paul A, Maji B, Misra SK, Jain AK, Muniyappa K, Bhattacharya S. Stabilization and structural alteration of the G-quadruplex DNA made from the human telomeric repeat mediated by Tröger's base based novel benzimidazole derivatives. J Med Chem 2012; 55:7460-71. [PMID: 22827615 DOI: 10.1021/jm300442r] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Ligand-induced stabilization of the G-quadruplex DNA structure derived from the single-stranded 3'-overhang of the telomeric DNA is an attractive strategy for the inhibition of the telomerase activity. The agents that can induce/stabilize a DNA sequence into a G-quadruplex structure are therefore potential anticancer drugs. Herein we present the first report of the interactions of two novel bisbenzimidazoles (TBBz1 and TBBz2) based on Tröger's base skeleton with the G-quadruplex DNA (G4DNA). These Tröger's base molecules stabilize the G4DNA derived from a human telomeric sequence. Evidence of their strong interaction with the G4DNA has been obtained from CD spectroscopy, thermal denaturation, and UV-vis titration studies. These ligands also possess significantly higher affinity toward the G4DNA over the duplex DNA. The above results obtained are in excellent agreement with the biological activity, measured in vitro using a modified TRAP assay. Furthermore, the ligands are selectively more cytotoxic toward the cancerous cells than the corresponding noncancerous cells. Computational studies suggested that the adaptive scaffold might allow these ligands to occupy not only the G-quartet planes but also the grooves of the G4DNA.
Collapse
Affiliation(s)
- Ananya Paul
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560 012, India
| | | | | | | | | | | |
Collapse
|
29
|
Gaslonde T, Léonce S, Pierré A, Pfeiffer B, Michel S, Tillequin F. Tröger’s bases in the acronycine, benzo[a]acronycine, and benzo[b]acronycine series. Tetrahedron Lett 2011; 52:4426-9. [DOI: 10.1016/j.tetlet.2011.06.064] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
30
|
|
31
|
|
32
|
Veale EB, Gunnlaugsson T. Synthesis, Photophysical, and DNA Binding Studies of Fluorescent Tröger’s Base Derived 4-Amino-1,8-naphthalimide Supramolecular Clefts. J Org Chem 2010; 75:5513-25. [DOI: 10.1021/jo1005697] [Citation(s) in RCA: 117] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Emma B. Veale
- School of Chemistry, Center for Synthesis and Chemical Biology, Trinity College Dublin, Dublin 2, Ireland
| | - Thorfinnur Gunnlaugsson
- School of Chemistry, Center for Synthesis and Chemical Biology, Trinity College Dublin, Dublin 2, Ireland
| |
Collapse
|
33
|
Wan Y, Yuan R, Zhang WC, Shi YH, Lin W, Yin W, Bo RC, Shi JJ, Wu H. Two isolated intermediates of the Tröger's base: synthesis and mechanism. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.03.057] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
34
|
Ricci CG, Netz PA. Docking studies on DNA-ligand interactions: building and application of a protocol to identify the binding mode. J Chem Inf Model 2009; 49:1925-35. [PMID: 19655805 DOI: 10.1021/ci9001537] [Citation(s) in RCA: 134] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Despite DNA being an important target for several drugs, most of the docking programs are validated only for proteins and their ligands. In this paper, we used AutoDock 4.0 to perform self-dockings and cross dockings between two DNA ligands (a minor groove binder and an intercalator) and four distinct receptors: 1) crystallographic DNA without intercalation gap; 2) crystallographic DNA with intercalation gap; 3) canonical B-DNA; and 4) modified B-DNA with intercalation gap. Besides being efficient in self-dockings, AutoDock is capable of correctly identifying two of the main DNA binding modes with the condition that the target possesses an artificial intercalation gap. Therefore, we suggest a default protocol to identify DNA binding modes which uses a modified canonical DNA (with gap) as receptor. This protocol was applied to dock two different Troger bases to DNA and the predicted binding modes agree with those suggested, yet not established, by experimental data. We also applied the protocol to dock aflatoxin B(1) exo-8,9-epoxide, and the results are in complete agreement with experimental data from the literature. We propose that this approach can be used to investigate other ligands whose binding mode to DNA remains unknown, yielding a suitable starting point for further theoretical studies such as molecular dynamics simulations.
Collapse
Affiliation(s)
- Clarisse G Ricci
- Instituto de Quimica, Universidade Federal do Rio Grande do Sul, av Bento Goncalves 9500, 91501-970, Porto Alegre, Brazil
| | | |
Collapse
|
35
|
Faroughi M, Zhu KX, Jensen P, Craig DC, Try AC. One-Step Synthesis of Tröger's Base Hybrids Containing at Least One Halogen Atom. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900121] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
36
|
Veale EB, Frimannsson DO, Lawler M, Gunnlaugsson T. 4-Amino-1,8-naphthalimide-Based Tröger’s Bases As High Affinity DNA Targeting Fluorescent Supramolecular Scaffolds. Org Lett 2009; 11:4040-3. [DOI: 10.1021/ol9013602] [Citation(s) in RCA: 114] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Emma B. Veale
- School of Chemistry, Center for Synthesis and Chemical Biology, Trinity College Dublin, Dublin 2, Ireland, and School of Medicine, Institute of Molecular Medicine, St. James’s Hospital, Trinity College Dublin, Dublin 8, Ireland
| | - Daniel O. Frimannsson
- School of Chemistry, Center for Synthesis and Chemical Biology, Trinity College Dublin, Dublin 2, Ireland, and School of Medicine, Institute of Molecular Medicine, St. James’s Hospital, Trinity College Dublin, Dublin 8, Ireland
| | - Mark Lawler
- School of Chemistry, Center for Synthesis and Chemical Biology, Trinity College Dublin, Dublin 2, Ireland, and School of Medicine, Institute of Molecular Medicine, St. James’s Hospital, Trinity College Dublin, Dublin 8, Ireland
| | - Thorfinnur Gunnlaugsson
- School of Chemistry, Center for Synthesis and Chemical Biology, Trinity College Dublin, Dublin 2, Ireland, and School of Medicine, Institute of Molecular Medicine, St. James’s Hospital, Trinity College Dublin, Dublin 8, Ireland
| |
Collapse
|
37
|
Vardelle E, Martin-Mingot A, Jouannetaud MP, Jacquesy JC, Marrot J. An efficient access to new Tröger’s bases using superacidic chemistry. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2008.12.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
38
|
Wu H, Chen XM, Wan Y, Ye L, Xin HQ, Xu HH, Yue CH, Pang LL, Ma R, Shi DQ. Stereoselective Mannich reactions catalyzed by Tröger’s base derivatives in aqueous media. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2008.12.067] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
39
|
Didier D, Tylleman B, Lambert N, Vande Velde CM, Blockhuys F, Collas A, Sergeyev S. Functionalized analogues of Tröger's base: scope and limitations of a general synthetic procedure and facile, predictable method for the separation of enantiomers. Tetrahedron 2008; 64:6252-62. [DOI: 10.1016/j.tet.2008.04.111] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
40
|
Claessens N, Pierard F, Bresson C, Moucheron C, Kirsch-De Mesmaeker A. Optically active Ru(II) complexes with a chiral Tröger’s base ligand and their interactions with DNA. J Inorg Biochem 2007; 101:987-96. [PMID: 17499361 DOI: 10.1016/j.jinorgbio.2007.03.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2007] [Revised: 03/16/2007] [Accepted: 03/21/2007] [Indexed: 10/23/2022]
Abstract
Three stereoisomers of a Ru(II) complex bearing a chiral bis-phenanthroline Tröger's base analogue, TBphen2 (1), have been isolated from the reaction of the enantiomerically pure precursor complex Lambda- (or Delta-) cis-[Ru(phen)2(py)2]2+ (phen=1,10-phenanthroline, py=pyridine) with the racemic mixture of 1. Each stereoisomer of [Ru(phen)2TBphen2]2+ (2) has been characterized by 1H NMR and CD spectroscopy. Electrochemical studies revealed that the redox properties of 2 are not influenced by the stereochemistry, however, the electrochemical oxidation of the metallic center is irreversible because of the diazocine bridge of the TBphen2 ligand. Steady-state emission measurements in the presence of calf thymus DNA showed that the DNA binding of [Ru(phen)2TBphen2]2+ depends on the stereoisomer and is mainly controlled by the absolute configuration of the metal center of the complex. The affinity constant for the stereoisomer Delta-S-2 is 10(2) higher than that for Lambda-S-2 and rac-[Ru(phen)3]2+.
Collapse
Affiliation(s)
- Nicolas Claessens
- Chimie Organique et Photochimie, Université Libre de Bruxelles, CP 160/08, 50 Avenue F.D. Roosevelt, 1050 Bruxelles, Belgium
| | | | | | | | | |
Collapse
|
41
|
Abella CAM, Benassi M, Santos LS, Eberlin MN, Coelho F. The Mechanism of Tröger's Base Formation Probed by Electrospray Ionization Mass Spectrometry. J Org Chem 2007; 72:4048-54. [PMID: 17472399 DOI: 10.1021/jo062556w] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Using direct infusion electrospray ionization mass and tandem mass spectrometric experiments [ESI-MS(/MS)], we have performed on-line monitoring of some reactions used to form Tröger's bases. Key intermediates, either as cationic species or as protonated forms of neutral species, have been intercepted and characterized. The role of urotropine as the methylene source in these reactions has also been accessed. Reaction pathways shown by ESI-MS(/MS) have been probed by gas-phase ion/molecule reactions, and an expanded mechanism for Tröger's base formation based on the mass spectrometric data has been elaborated.
Collapse
Affiliation(s)
- Carlos A M Abella
- Laboratory of Synthesis of Natural Products and Drugs and the ThoMSon Mass Spectrometry Laboratory, Institute of Chemistry, State University of Campinas, UNICAMP, 13084-971 Campinas, SP, Brazil
| | | | | | | | | |
Collapse
|
42
|
|
43
|
Affiliation(s)
- Martin Valík
- a Department of Analytical Chemistry , Institute of Chemical Technology Prague , Technická 5, Praha 6, 166 28, Czech Republic
| | - Robert M. Strongin
- b Department of Chemistry , Louisiana State University , Baton Rouge, LA, 70803, USA
| | - Vladimír Král
- a Department of Analytical Chemistry , Institute of Chemical Technology Prague , Technická 5, Praha 6, 166 28, Czech Republic
| |
Collapse
|
44
|
Lenev DA, Lyssenko KA, Kostyanovsky RG. Sterically hindered fluorinated and brominated Tröger bases: synthesis and X-ray diffraction analysis. Mendeleev Communications 2006. [DOI: 10.1070/mc2006v016n03abeh002345] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
45
|
Valík M, Matějka P, Herdtweck E, Král V, Dolensky B. A New Bis-Tröger's Base: Synthesis, Spectroscopy, Crystal Structure and Isomerization. ACTA ACUST UNITED AC 2006. [DOI: 10.1135/cccc20061278] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A new bis-Tröger's base was prepared from a tetraamine precursor as a mixture of two diastereoisomers. One of the isomers has a chair-like geometry, and the other possesses a boat-like geometry, embodying molecular tweezers. A one-pot preparation of bis-TB isomers and their interconversion under acid conditions was also studied. Structures of both isomers were confirmed by single-crystal X-ray diffraction. Extensive spectroscopic data, including 1H and 13C NMR, IR and Raman spectra of the isomers, are given.
Collapse
|
46
|
Lenev DA, Lyssenko KA, Golovanov DG, Malyshev OR, Levkin PA, Kostyanovsky RG. Absolute configuration of Tröger bases: an X-ray diffraction and circular dichroism study. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2005.11.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
47
|
Solano C, Svensson D, Olomi Z, Jensen J, Wendt OF, Wärnmark K. Introduction of Aromatic and Heteroaromatic Groups in the 2- and 8-Positions of the Tröger’s Base Core by Suzuki, Stille and Negishi Cross-Coupling Reactions - A Comparative Study. European J Org Chem 2005. [DOI: 10.1002/ejoc.200500213] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
48
|
Valík M, Dolenský B, Herdtweck E, Král V. Preparation of the enantiomers of an N-methylpyrrole analogue of Tröger’s base. ACTA ACUST UNITED AC 2005; 16:1969-74. [DOI: 10.1016/j.tetasy.2005.04.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
49
|
Zhao J, Xia S, Gao H. Investigation of Interaction of Proflavine and Naphthol Red in Nucleic Acids by Light‐Absorption Spectrometry. Journal of Macromolecular Science, Part A 2004. [DOI: 10.1081/ma-120027177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
50
|
Abstract
Derivatives of Tröger's base (TB) have played important roles in receptor construction due to their rigid V-shape. A new class of these compounds are the oligo-TBs, which can function as cavitands. Herein, we describe both stepwise and one-step (oligomerization) methods suitable for the preparation of linear oligo-TBs.
Collapse
Affiliation(s)
- Bohumil Dolenský
- Department of Analytical Chemistry, Institute of Chemical Technology, Prague, Technická 5, 166 28 Praha 6, Czech Republic
| | | | | | | |
Collapse
|