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Race JJ, Hudson LA, Albrecht M. Stable CAAC- triazenes: A New Nitrogen Ligand System with Donor and Conformational Flexibility, and with Application in Olefin Activation Catalysis. Chemistry 2024:e202400400. [PMID: 38687878 DOI: 10.1002/chem.202400400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 01/30/2024] [Revised: 04/30/2024] [Accepted: 04/30/2024] [Indexed: 05/02/2024]
Abstract
N-heterocyclic imines such as pyridylidene amines impart high catalytic activity when coordinated to a transition metal, largely imposed by their electronic flexibility. Here, this donor flexibility has been applied for the first time to CAAC-based systems through the synthesis of CAAC-triazenes. These new ligands offer a larger π-conjugating that extends from the N-heterocyclic carbene through three nitrogens rather than just one, as observed in N-heterocyclic imines. We demonstrate the straightforward synthesis of three new CAAC-triazenes containing different substituents on the terminal triazene nitrogen. These compounds are remarkably stable up to 120 °C without loss of N2 as typically observed with similar triazenes. E-to-Z isomerization within the triazene is instigated by UV light and is partially reversible dependent on the triazene substituent. The quinoline-substituted CAAC-triazene 1-Q has been applied as an L,L'-type ligand in the synthesis of [PdCl2(1-Q)], [PdCl(Me)(1-Q)] and [Pd(Me)(H2O(1-Q)]+. E-to-Z ligand isomerization also occurs when coordinated to PdCl2, providing access to on-metal manipulation. The cationic complex [PdMe(H2O)(1-Q)]+ is a precatalyst for oligomerization of ethylene to form initially 2-butene and subsequently linear and branched C8-C12products from butene activation. Moreover, isomerization of 1-hexene takes place efficiently with exceptionally low catalyst loading (10 ppm) and up to 74,000 turnover numbers.
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Affiliation(s)
- James J Race
- Universität Bern, Department of Chemistry, Biochemistry & Pharmaceutical Sciences, SWITZERLAND
| | - Luke A Hudson
- Universität Bern, Department of Chemistry, Biochemistry & Pharmaceutical Sciences, SWITZERLAND
| | - Martin Albrecht
- Universität Bern: Universitat Bern, Department of Chemistry, Biochemistry and Pharmaceutical Sciences, Freiestrasse 3, 3012, Bern, SWITZERLAND
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Lolak N, Akocak S, Petreni A, Budak Y, Bozgeyik E, Gurdere MB, Ceylan M, Supuran CT. 1,3-Diaryl Triazenes Incorporating Disulfonamides Show Both Antiproliferative Activity and Effective Inhibition of Tumor-associated Carbonic Anhydrases IX and XII. Anticancer Agents Med Chem 2024; 24:ACAMC-EPUB-138531. [PMID: 38362678 DOI: 10.2174/0118715206285326240207045249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/09/2023] [Revised: 12/31/2023] [Accepted: 01/09/2024] [Indexed: 02/17/2024]
Abstract
AIM The aim of this study was to synthesize a library of novel di-sulfa drugs containing 1,3- diaryltriazene derivatives TS (1-13) by conjugation of diazonium salts of primary sulfonamides with sulfa drugs to investigate the cytotoxic effect of these new compounds in different cancer types and to determine their inhibitory activity against tumor-associated carbonic anhydrases IX and XII. MATERIALS AND METHODS A carbonic anhydrase inhibitory activity of the obtained compounds was evaluated against four selected human carbonic anhydrase isoforms (hCA I, hCA II, hCA IX and hCA XII) by a stoppedflow CO2 hydrase assay. In addition, in vitro, cytotoxicity studies were applied by using A549 (lung cancer), BEAS-2B (normal lung), MCF-7 (breast cancer), MDA-MB-231 (breast cancer), CRL-4010 (normal breast epithelium), HT-29 (colon cancer), and HCT -116 (colon cancer) cell lines. RESULTS As a result of the inhibition data, the 4-aminobenzenesulfonamide derivatives were more active than their 3-aminobenzenesulfonamide counterparts. More specifically, compounds TS-1 and TS-2, both of which have primary sulfonamides on both sides of the triazene linker, showed the best inhibitory activity against hCA IX with Ki values of 19.5 and 13.7 nM and also against hCA XII with Ki values of 6.6 and 8.3 nM, respectively. In addition, in vitro cytotoxic activity on the human breast cancer cell line MCF-7 showed that some derivatives of di-sulfa triazenes, such as TS-5 and TS-13, were more active than SLC-0111. CONCLUSION With the aim of developing more potent and isoform-selective CA inhibitors, these novel hybrid molecules containing sulfa drugs, triazene linkers, and the classical primary sulfonamide chemotype may be considered an interesting example of effective enzyme inhibitors and important anticancer agents.
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Affiliation(s)
- Nebih Lolak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adıyaman University, 02040 Adıyaman, Türkiye
| | - Suleyman Akocak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adıyaman University, 02040 Adıyaman, Türkiye
| | - Andrea Petreni
- Università Degli Studi di Firenze, NEUROFARBA Dept., Sezione di Scienze Farmaceutiche, Via Ugo Schiff 6, 50019 Sesto Fiorentino (Florence), Italy
| | - Yakup Budak
- Department of Chemistry, Faculty of Arts and Sciences, Gaziosmanpaşa University, 60250 Tokat, Türkiye
| | - Esra Bozgeyik
- Department of Medical Services and Techniques, Vocational School of Health Services, Adıyaman University, 02040 Adıyaman, Türkiye
| | - Meliha Burcu Gurdere
- Department of Chemistry, Faculty of Arts and Sciences, Gaziosmanpaşa University, 60250 Tokat, Türkiye
| | - Mustafa Ceylan
- Department of Chemistry, Faculty of Arts and Sciences, Gaziosmanpaşa University, 60250 Tokat, Türkiye
| | - Claudiu T Supuran
- Università Degli Studi di Firenze, NEUROFARBA Dept., Sezione di Scienze Farmaceutiche, Via Ugo Schiff 6, 50019 Sesto Fiorentino (Florence), Italy
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Świderski G, Łaźny R, Sienkiewicz M, Kalinowska M, Świsłocka R, Acar AO, Golonko A, Matejczyk M, Lewandowski W. Synthesis, Spectroscopic, and Theoretical Study of Copper and Cobalt Complexes with Dacarbazine. Materials (Basel) 2021; 14:3274. [PMID: 34199318 DOI: 10.3390/ma14123274] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 06/07/2021] [Accepted: 06/10/2021] [Indexed: 12/11/2022]
Abstract
Dacarbazine (DAC) 5-(3,3-dimethyl-1-triazenyl)imidazole-4-carboxamide is an imidazole-carboxamide derivative that is structurally related to purines. DAC belongs to the triazene compounds, which are a group of alkylating agents with antitumor and mutagenic properties. DAC is a non-cell cycle specific drug, active in all phases of the cellular cycle. In the frame of this work the 3d metal complexes (cobalt and copper) with dacarbazine were synthesized. Their spectroscopic properties by the use of FT-IR, FT-Raman, and 1HNMR were studied. The structures of dacarbazine and its complexes with copper(II) and cobalt(II) were calculated using DFT methods. The effect of metals on the electronic charge distribution of dacarbazine was discussed on the basis of calculated NBO atomic charges. The reactivity of metal complexes in relation to ligand alone was estimated on the basis of calculated energy of HOMO and LUMO orbitals. The aromaticity of the imidazole ring in dacarbazine and the complexes were compared (on the basis of calculated geometric indices of aromaticity). Thermal stability of the investigated 3d-metal complexes with dacarbazine and the products of their thermal decomposition were analyzed.
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Wang C, Lai Z, Xie H, Cui S. Triazenyl Alkynes as Versatile Building Blocks in Multicomponent Reactions: Diastereoselective Synthesis of β-Amino Amides. Angew Chem Int Ed Engl 2021; 60:5147-5151. [PMID: 33289272 DOI: 10.1002/anie.202014686] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [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: 11/02/2020] [Revised: 12/02/2020] [Indexed: 12/31/2022]
Abstract
Multicomponent reactions (MCRs) are powerful tool for the construction of polyfunctional molecules in an operationally simple and atom-economic manner, and the discovery of novel MCRs requests various building blocks. Herein, triazenyl alkynes were disclosed as versatile building blocks in a multicomponent reaction with carboxylic acids, aldehydes and anilines to furnish β-amino amides with the achievement of high diastereoselectivity and structural diversity. In this process, triazenyl alkynes were bifunctional so that the alkyne moiety acts as C2 fragment and triazene serves as directing group to modulate the transition state thus achieving high diastereoselectivity, in consistence with DFT calculations. Furthermore, the triazenyl group also enables diverse late-stage transformation. This protocol opens a new vision for the discovery of building block and rational design of MCRs.
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Affiliation(s)
- Chaorong Wang
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang Province, China
| | - Zhencheng Lai
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang Province, China
| | - Hujun Xie
- School of Food Science and Biotechnology, Zhejiang Gongshang University, 18 Xuezheng Street, Xiasha Higher Education Campus, Hangzhou, 310018, Zhejiang Province, China
| | - Sunliang Cui
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang Province, China.,Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, China
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Bilginer S, Gul HI, Anil B, Demir Y, Gulcin I. Synthesis and in silico studies of triazene-substituted sulfamerazine derivatives as acetylcholinesterase and carbonic anhydrases inhibitors. Arch Pharm (Weinheim) 2020; 354:e2000243. [PMID: 32984993 DOI: 10.1002/ardp.202000243] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [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: 07/14/2020] [Revised: 08/27/2020] [Accepted: 09/01/2020] [Indexed: 01/06/2023]
Abstract
A novel series of sulfonamides, 4-(3-phenyltriaz-1-en-1-yl)-N-(4-methyl-2-pyrimidinyl)benzenesulfonamides (1-9), was designed and synthesized by the diazo reaction between sulfamerazine and substituted aromatic amines for the first time. Their chemical structures were characterized by 1 H nuclear magnetic resonance (NMR), 13 C NMR, and high-resolution mass spectra. The newly synthesized compounds were evaluated in terms of acetylcholineasterase (AChE) and human carbonic anhydrases (hCA) I and II isoenzymes inhibitory activities. According to the AChE inhibition results, the Ki values of the compounds 1-9 were in the range of 19.9 ± 1.5 to 96.5 ± 20.7 nM against AChE. Tacrine was used as the reference drug and its Ki value was 49.2 ± 2.7 nM against AChE. The Ki values of the compounds 1-9 were in the range of 10.2 ± 2.6 to 101.4 ± 27.8 nM against hCA I, whereas they were 18.3 ± 4.4 to 48.1 ± 4.5 nM against hCA II. Acetazolamide was used as a reference drug and its Ki values were 72.2 ± 5.4 and 52.2 ± 5.7 nM against hCA I and hCA II, respectively. The most active compounds, 1 (nonsubstituted) against AChE, 5 (4-ethoxy-substituted) against hCA I, and 8 (4-bromo-substituted) against hCA II, were chosen and docked at the binding sites of these enzymes to explain the inhibitory activities of the series. The newly synthesized compounds presented satisfactory pharmacokinetic properties via the estimation of ADME properties.
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Affiliation(s)
- Sinan Bilginer
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Halise I Gul
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Baris Anil
- Department of Chemistry, Faculty of Science, Ataturk University, Erzurum, Turkey
| | - Yeliz Demir
- Nihat Delibalta Göle Vocational High School, Ardahan University, Ardahan, Turkey
| | - Ilhami Gulcin
- Department of Chemistry, Faculty of Science, Ataturk University, Erzurum, Turkey
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Bilginer S, Gonder B, Gul HI, Kaya R, Gulcin I, Anil B, Supuran CT. Novel sulphonamides incorporating triazene moieties show powerful carbonic anhydrase I and II inhibitory properties. J Enzyme Inhib Med Chem 2019; 35:325-329. [PMID: 31813300 PMCID: PMC6913647 DOI: 10.1080/14756366.2019.1700240] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [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] [Indexed: 12/03/2022] Open
Abstract
A series of compounds incorporating 3-(3-(2/3/4-substituted phenyl)triaz-1-en-1-yl) benzenesulfonamide moieties were synthesised and their chemical structure was confirmed by physico-chemical methods. Carbonic anhydrase (CA, EC 4.2.1.1) inhibitory effects of the compounds were evaluated against human isoforms hCA I and II. KI values of these sulphonamides were in the range of 21 ± 4–72 ± 2 nM towards hCA I and in the range of 16 ± 6–40 ± 2 nM against hCA II. The 4-fluoro substituted derivative might be considered as an interesting lead due to its effective inhibitory action against both hCA I and hCA II (KIs of 21 nM), a profile rarely seen among other sulphonamide CA inhibitors, making it of interest in systems where the activity of the two cytosolic isoforms is dysregulated.
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Affiliation(s)
- Sinan Bilginer
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Baris Gonder
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Halise Inci Gul
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Ruya Kaya
- Department of Chemistry, Faculty of Science, Ataturk University, Erzurum, Turkey.,Central Research & Application Laboratory, Agri Ibrahim Cecen University, Agri, Turkey
| | - Ilhami Gulcin
- Department of Chemistry, Faculty of Science, Ataturk University, Erzurum, Turkey
| | - Baris Anil
- Department of Chemistry, Faculty of Science, Ataturk University, Erzurum, Turkey
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Canakci D, Koyuncu I, Lolak N, Durgun M, Akocak S, Supuran CT. Synthesis and cytotoxic activities of novel copper and silver complexes of 1,3-diaryl triazene-substituted sulfonamides. J Enzyme Inhib Med Chem 2019; 34:110-116. [PMID: 30362387 PMCID: PMC6211257 DOI: 10.1080/14756366.2018.1530994] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 09/26/2018] [Accepted: 09/28/2018] [Indexed: 11/19/2022] Open
Abstract
In this study, a series of 10 novel copper (II) and silver complexes of 1,3-diaryltriazene-substituted sulfonamides was synthesised. All the synthesised ligands and their metal complexes were assessed for in vitro cytotoxicity against human colorectal adenocarcinoma (DLD-1), cervix carcinoma (HeLa), breast adenocarcinoma (MDA-MB-231), colon adenocarcinoma (HT-29), endometrial adenocarcinoma (ECC-1), prostate cancer (DU-145 and PC-3), normal embryonic kidney (HEK-293), normal prostate epithelium (PNT-1A), and normal retinal pigment epithelium (ARPE-19) cells. Most of the metal complexes from the series showed to be more active against all cancerous cells than the uncomplexed 1,3-diaryltriazene-substituted sulfonamides, and lower cytotoxic effects observed on normal cells. Most of the Cu (II) and Ag (I) metal complexes from the presented series showed high cytotoxic activity against HeLa cells with IC50 values ranging from 2.08 to >300 µM. Specifically, compound L3-Ag showed one of the highest cytotoxicity against all cancer cell lines with IC50 values between 3.30 to 16.18 µM among other tested compounds.
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Affiliation(s)
- Dilek Canakci
- Department of Chemistry, Vocational School of Technical Sciences, Adiyaman University, Adiyaman, Turkey
| | - Ismail Koyuncu
- Faculty of Medicine, Department of Biochemistry, Harran University, Sanliurfa, Turkey
| | - Nabih Lolak
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Adiyaman University, Adiyaman, Turkey
| | - Mustafa Durgun
- Faculty of Arts and Sciences, Deparment of Chemistry, Harran University, Sanliurfa, Turkey
| | - Suleyman Akocak
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Adiyaman University, Adiyaman, Turkey
| | - Claudiu T. Supuran
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche, Università degli Studi di Firenze, Florence, Italy
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Pauer B, Partl GJ, Oberparleiter S, Schuh W, Kopacka H, Wurst K, Peringer P. Crystal structures of [IrCl 2(NHCHPh)((dppm)(C(N 2dppm))-κ 3 P, C, P')]Cl·5.5MeCN and [IrI(NHCHPh)(((dppm)C(N 2))-κ 2 P, C)(dppm-κ 2 P, P')]I(I 3)·0.5I 2·MeOH·0.5CH 2Cl 2: triazene fragmentation in a PCN pincer iridium complex. Acta Crystallogr E Crystallogr Commun 2019; 75:179-184. [PMID: 30800447 PMCID: PMC6362634 DOI: 10.1107/s2056989019000136] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 12/20/2018] [Accepted: 01/03/2019] [Indexed: 12/03/2022]
Abstract
The structure of [IrCl2(C58H51N3P4)]Cl·5.5CH3CN or [IrCl2(NHCHPh)(((dppm)C(N2dppm))-κ 3P,C,P)]Cl·5.5CH3CN [3, dppm = bis-(di-phenyl-phos-phino)methane; systematic name: di-chlorido(1,1,3,3,7,7,9,9-octa-phenyl-4,5-di-aza-1,3λ5,7λ4,9-tetra-phosphanona-3,5-dien-6-yl-κ2 P 1,P 9)-(phenyl-methanimine-κN)iridium(III) chloride aceto-nitrile hemihendeca-solvate], resulting from an oxygen-mediated cleavage of a triazeneyl-idene-phospho-rane ligand producing a diazo-methyl-ene-phospho-rane and a nitrene moiety, which in turn rearrange via a Staudinger reaction and a 1,2-hydride shift to the first title complex, involves a six-coordinate IrIII complex cation coordinated by a facial PCP pincer ligand, a benzaldimine and two chlorido ligands. The pincer system features a five- and a seven-membered ring, with the central divalent carbon of the PCP pincer ligand being connected to a phosphine and a diazo-phospho-rane. The chlorido ligands are positioned trans to the central carbon atom and to the phospho-rus donor of the seven-membered ring of the pincer system, respectively. A chloride ion serves as counter-ion for the monocationic complex. The structure of [IrI(C26H22N2P2)(C26H22P2)(C6H7N)]I(I3)·0.5I2·CH3OH·0.5CH2Cl2 or [IrI(NHCHPh)((dppm)C(N2)-κ 2P,C)(dppm-κ 2P,P')]I(I3)·0.5I2·CH3OH·0.5CH2Cl2 {4, systematic name: (4-diazo-1,1,3,3,-tetra-phenyl-1,3λ4-diphosphabutan-4-yl-κP 1)iodido[methyl-enebis(di-phenyl-phosphine)-κ2 P,P'](phenyl-methanimine-κN)iridium(III) iodide-triiodide-di-chloro-methane-iodine-methanol (2/2/1/1/2)}, accessed via treatment of the triazeneyl-idene-phospho-rane complex [Ir((BnN3)C(dppm)-κ 3P,C,N)(dppm-κ 2P,P')]Cl with hydro-iodic acid, consists of a dicationic six-coordinate IrIII complex, coordinated by a bidentate diazo-methyl-ene-phospho-rane, a benzaldimine, a chelating dppm moiety and an iodido ligand. The phospho-rus atoms of the chelating dppm are trans to the central carbon atom of the diazo-methyl-ene-phospho-rane and the iodide ligand, respectively. Both an iodide and a triiodide moiety function as counter-ions. The aceto-nitrile solvent mol-ecules in 3 are severely disordered in position and occupation. In 4, the I3 - anion is positionally disordered (ratio roughly 1:1), as is the I- anion with a ratio of 9:1. The di-chloro-methane solvent mol-ecule lies near a twofold rotation axis (disorder) and was refined with an occupancy of 0.5. Another disorder occurs for the solvent methanol with a 1:1 ratio.
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Affiliation(s)
- Bettina Pauer
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, A-6020 Innsbruck, Austria
| | - Gabriel Julian Partl
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, A-6020 Innsbruck, Austria
| | - Stefan Oberparleiter
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, A-6020 Innsbruck, Austria
| | - Walter Schuh
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, A-6020 Innsbruck, Austria
| | - Holger Kopacka
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, A-6020 Innsbruck, Austria
| | - Klaus Wurst
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, A-6020 Innsbruck, Austria
| | - Paul Peringer
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, A-6020 Innsbruck, Austria
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Abstract
A series of new 1,3-diaryltriazene sulfonamides was synthesised by reaction of diazonium salt of metanilamide (3-aminobenzene sulfonamide) with substituted aromatic amines. The obtained new compounds were assayed as inhibitors of four physiologically and pharmacologically relevant human (h) isoforms of carbonic anhydrases (CA, EC 4.2.1.1), specifically, hCA I, hCA II, and hCA VII (cytosolic isoforms), as well as the tumour-associated membrane-bound isoform hCA IX. All isoforms investigated here were inhibited by the newly synthesised 1,3-diaryltriazene sulfonamide derivatives from the micromolar to the nanomolar range. The cytosolic isoforms were inhibited with Kis in the range of 92.3–8371.1 nM (hCA I), 4.3–9194.0 nM (hCA II), and 15.6–9477.8 nM (hCA VII), respectively. For the membrane-bound tumour-associated isoform hCA IX, the KI-s ranged between 50.8 and 9268.5 nM. The structure–activity relationship (SAR) with these newly synthesised metanilamide derivatives are discussed in detail.
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Affiliation(s)
- Suleyman Akocak
- a Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Adiyaman University , Adiyaman , Turkey
| | - Nabih Lolak
- a Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Adiyaman University , Adiyaman , Turkey
| | - Silvia Bua
- b NEUROFARBA Dept., Sezione di Scienze Farmaceutiche , Università degli Studi di Firenze , Sesto Fiorentino (Florence) , Italy
| | - Claudiu T Supuran
- b NEUROFARBA Dept., Sezione di Scienze Farmaceutiche , Università degli Studi di Firenze , Sesto Fiorentino (Florence) , Italy
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Athanasiadi I, Geigy C, Hilger RA, Meier V, Rohrer Bley C. Safety, tolerability and pharmacokinetic properties of the novel triazene TriN 2755 in tumour bearing dogs - a phase I study †. Vet Comp Oncol 2015; 15:94-104. [PMID: 25689225 DOI: 10.1111/vco.12145] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 01/12/2015] [Accepted: 01/17/2015] [Indexed: 01/31/2023]
Abstract
TriN 2755 is an alkylating antineoplastic agent for intravenous (IV) use, carrying the triazene group as the cytotoxic principal. Using a standard 3 + 3 design, a phase I study was performed in tumour bearing dogs to determine the maximum tolerated dose (MTD), the dose limiting toxicity (DLT), and pharmacokinetic (PK) profile of TriN 2755. Thirty dogs were included in the study. TriN 2755 was administered over 20 min on two consecutive weeks per month for a total of three cycles. The starting dose was 25 mg kg-1 and the MTD was 74.6 mg kg-1 . Three dogs experienced DLT, which was characterized by gastrointestinal adverse events. The PKs of TriN 2755 and its main metabolites in plasma and sputum are described in a two-compartment model. The response rate for 19 of 30 dogs was 47.3% (six partial remission, three stable disease) and the median progression-free interval (PFI) for the responders was 47 days (range: 21-450 days).
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Affiliation(s)
- I Athanasiadi
- Division of Radiation Oncology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - C Geigy
- Division of Radiation Oncology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - R A Hilger
- Clinic for Internal Medicine, Cancer Research, West German Cancer Center, University of Essen, Essen, Germany
| | - V Meier
- Division of Radiation Oncology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - C Rohrer Bley
- Division of Radiation Oncology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
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Rutkauskas K, Zubrienė A, Tumosienė I, Kantminienė K, Kažemėkaitė M, Smirnov A, Kazokaitė J, Morkūnaitė V, Čapkauskaitė E, Manakova E, Gražulis S, Beresnevičius ZJ, Matulis D. 4-amino-substituted benzenesulfonamides as inhibitors of human carbonic anhydrases. Molecules 2014; 19:17356-80. [PMID: 25353386 PMCID: PMC6271771 DOI: 10.3390/molecules191117356] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 10/14/2014] [Accepted: 10/21/2014] [Indexed: 11/16/2022] Open
Abstract
A series of N-aryl-β-alanine derivatives and diazobenzenesulfonamides containing aliphatic rings were designed, synthesized, and their binding to carbonic anhydrases (CA) I, II, VI, VII, XII, and XIII was studied by the fluorescent thermal shift assay and isothermal titration calorimetry. The results showed that 4-substituted diazobenzenesulfonamides were more potent CA binders than N-aryl-β-alanine derivatives. Most of the N-aryl-β-alanine derivatives showed better affinity for CA II while diazobenzenesulfonamides possessed nanomolar affinities towards CA I isozyme. X-ray crystallographic structures showed the modes of binding of both compound groups.
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Affiliation(s)
- Kęstutis Rutkauskas
- Department of Organic Chemistry, Kaunas University of Technology, Kaunas LT-50254, Lithuania.
| | - Asta Zubrienė
- Department of Biothermodynamics and Drug Design, Institute of Biotechnology, Vilnius University, Graičiūno 8, Vilnius LT-02241, Lithuania.
| | - Ingrida Tumosienė
- Department of Organic Chemistry, Kaunas University of Technology, Kaunas LT-50254, Lithuania.
| | - Kristina Kantminienė
- Department of Physical and Inorganic Chemistry, Kaunas University of Technology, Kaunas LT-50254, Lithuania.
| | - Marytė Kažemėkaitė
- Institute of Biochemistry, Vilnius University, Mokslininkų 12, Vilnius LT-08862, Lithuania.
| | - Alexey Smirnov
- Department of Biothermodynamics and Drug Design, Institute of Biotechnology, Vilnius University, Graičiūno 8, Vilnius LT-02241, Lithuania.
| | - Justina Kazokaitė
- Department of Biothermodynamics and Drug Design, Institute of Biotechnology, Vilnius University, Graičiūno 8, Vilnius LT-02241, Lithuania.
| | - Vaida Morkūnaitė
- Department of Biothermodynamics and Drug Design, Institute of Biotechnology, Vilnius University, Graičiūno 8, Vilnius LT-02241, Lithuania.
| | - Edita Čapkauskaitė
- Department of Biothermodynamics and Drug Design, Institute of Biotechnology, Vilnius University, Graičiūno 8, Vilnius LT-02241, Lithuania.
| | - Elena Manakova
- Department of Protein-DNA Interactions, Vilnius University Institute of Biotechnology, Graičiūno 8, Vilnius LT-02241, Lithuania.
| | - Saulius Gražulis
- Department of Protein-DNA Interactions, Vilnius University Institute of Biotechnology, Graičiūno 8, Vilnius LT-02241, Lithuania.
| | | | - Daumantas Matulis
- Department of Biothermodynamics and Drug Design, Institute of Biotechnology, Vilnius University, Graičiūno 8, Vilnius LT-02241, Lithuania.
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