1
|
Mısır BA, Derin Y, Ökten S, Aydın A, Koçyiğit ÜM, Şahin H, Tutar A. Novel diarylated tacrine derivatives: Synthesis, characterization, anticancer, antiepileptic, antibacterial, and antifungal activities. J Biochem Mol Toxicol 2024; 38:e23706. [PMID: 38591869 DOI: 10.1002/jbt.23706] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 03/06/2024] [Accepted: 03/29/2024] [Indexed: 04/10/2024]
Abstract
In this study, our goal was to synthesize novel aryl tacrine derivatives and assess their potential as anticancer, antibacterial agents, and enzyme inhibitors. We adopted a two-step approach, initiating with the synthesis of dibromotacrine derivatives 3 and 4 through the Friedlander reaction. These intermediates underwent further transformation into diarylated tacrine derivatives 3a-e and 4a-e using a Suzuki-Miyaura cross-coupling reaction. Thorough characterization of these novel diarylated tacrines was achieved using various spectroscopic techniques. Our findings highlighted the potent anticancer effects of these innovative compounds across a range of cancer cell lines, including lung, gynecologic, bone, colon, and breast cancers, while demonstrating low cytotoxicity against normal cells. Notably, these compounds surpassed the control drug, 5-Fluorouracil, in terms of antiproliferative activity in numerous cancer cell lines. Moreover, our investigation included an analysis of the inhibitory properties of these novel compounds against various microorganisms and cytosolic carbonic anhydrase enzymes. The results suggest their potential for further exploration as cancer-specific, enzyme inhibitory, and antibacterial therapeutic agents. Notably, four compounds, namely, 5,7-bis(4-(methylthio)phenyl)tacrine (3d), 5,7-bis(4-(trifluoromethoxy)phenyl)tacrine (3e), 2,4-bis(4-(trifluoromethoxy)phenyl)-7,8,9,10-tetrahydro-6H-cyclohepta[b]quinolin-11-amine (4e), and 6,8-dibromotacrine (3), emerged as the most promising candidates for preclinical studies.
Collapse
Affiliation(s)
- Büşra A Mısır
- Department of Chemistry, Faculty of Science, Sakarya University, Sakarya, Turkiye
- Department of Chemistry, Faculty of Science, Kahramanmaras Sütçü İmam University, Kahramanmaraş, Turkey
| | - Yavuz Derin
- Department of Chemistry, Faculty of Science, Sakarya University, Sakarya, Turkiye
| | - Salih Ökten
- Department of Maths and Science Education, Faculty of Education, Kırıkkale University, Kırıkkale, Turkiye
| | - Ali Aydın
- Department of Basic Medical Science, Faculty of Medicine, Yozgat Bozok University, Yozgat, Turkiye
| | - Ümit M Koçyiğit
- Department of Basic Pharmaceutical Sciences, Sivas Cumhuriyet University, Sivas, Turkiye
| | - Hatice Şahin
- Department of Basic Pharmaceutical Sciences, Sivas Cumhuriyet University, Sivas, Turkiye
| | - Ahmet Tutar
- Department of Chemistry, Faculty of Science, Sakarya University, Sakarya, Turkiye
| |
Collapse
|
2
|
Koçyiğit ÜM, Ökten S, Çakmak O, Burhan G, Ataş M, Taslimi P, Gülçin İ. Arylated Quinoline and Tetrahydroquinolines: Synthesis, Characterization and Their Metabolic Enzyme Inhibitory and Antimicrobial Activities. ChemistrySelect 2022. [DOI: 10.1002/slct.202203469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Ümit Muhammet Koçyiğit
- Department of Basic Pharmaceutical Sciences Faculty of Pharmacy Cumhuriyet University Sivas, Türkiye
| | - Salih Ökten
- Department of Maths and Science Education Division of Science Education Faculty of Education Kırıkkale University 71450 Yahşihan Kırıkkale, Türkiye
| | - Osman Çakmak
- Department of Gastronomy Faculty of Arts and Design Istanbul Rumeli University Silivri 34570 Istanbul, Türkiye
| | - Gizem Burhan
- Department of Chemistry Faculty of Science and Art Yıldız Technical University Davutpaşa İstanbul, Türkiye
| | - Mehmet Ataş
- Department of Basic Pharmaceutical Sciences Faculty of Pharmacy Cumhuriyet University Sivas, Türkiye
| | - Parham Taslimi
- Department of Biotechnology Faculty of Science Bartın University Bartın, Türkiye
| | - İlhami Gülçin
- Department of Chemistry Faculty of Science Atatürk University Erzurum, Türkiye
| |
Collapse
|
3
|
Saddiqa A, Shahzadi I, Usman M, Çakmak O, Ökten S. Facile, Expeditious and Cost-effective Preparation of N-Phthaloyl ( S)-Amino Acids and Their in silico Activities against Staphylococcus Aureus. ORG PREP PROCED INT 2022. [DOI: 10.1080/00304948.2022.2113724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Aisha Saddiqa
- Department of Chemistry, Government College Women University, Sialkot, Pakistan
| | - Iram Shahzadi
- Department of Chemistry, Government College Women University, Sialkot, Pakistan
| | - Muhammad Usman
- Department of Chemistry, Lahore Garrison University, Lahore, Pakistan
| | - Osman Çakmak
- Department of Gastronomy, Faculty of Arts and Design, İstanbul Rumeli University, Silivri, İstanbul, Türkiye
| | - Salih Ökten
- Department of Maths and Science Education, Division of Science Education, Faculty of Education, Kırıkkale University, Yahşihan, Kırıkkale, Türkiye
| |
Collapse
|
4
|
Bulut M, Ökten S, Özcan E, Eren T. N-function heterocycles as promising anticancer agents: A case study with a decision model in fuzzy environment. LETT DRUG DES DISCOV 2022. [DOI: 10.2174/1570180819666220704110011] [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
Objective:
In this study, it was aimed to evaluate the data according to five accepted criteria for the effects of twenty promising anticancer agents on five different cancer types and to determine the most effective compounds for futher in vitro and in vivo studies with multi criteria decision making method (MCDM), which rationalizes decision making in a fuzzy environment to avoid the high cost and time requirements of further preclinical and clinical studies.
Methods:
Within the scope of the study, the weights of the five criteria were evaluated with the Pythagorean fuzzy analytic hierarchy process (PFAHP), which is one of the multi criteria decision making methods, and a comparison was made with the criteria weights obtained as a result of the Complex proportional assessment (COPRAS) method. Moreover, the effect of criteria weights calculated with PFAHP on the ranking of alternatives was analyzed using different scenarios.
Results:
Experimentally, twenty N-heterocyclic quinoline derivatives with different substituents were identified as promising anticancer agents. In this study, a multicriteria decision making (MCDM) model is proposed under uncertainty to identify the most promising anticancer agents against all tested cell lines. Both the experimental and model results indicated that 20, 17, 19, and 7 are the most promising anticancer agents against the A549, HeLa, Hep3B, HT29 and MCF7 cell lines. Moreover, different scenarios are generated and analyzed to prove the consistency of the proposed methodology.
Conclusion:
MCDM strongly suggests that compounds 20, 17, 19, and 7 can be recommended to be further investigated for in vivo studies.
Collapse
Affiliation(s)
- Merve Bulut
- Department of Industrial Engineering, Faculty of Engineering, Kırıkkale University, 71450, Yahşihan, Kırıkkale, Turkey
| | - Salih Ökten
- Department of Mathematics and Science Education, Faculty of Education, Kırıkkale University, 71450, Yahşihan, Kırıkkale, Turkey
| | - Evrencan Özcan
- Department of Industrial Engineering, Faculty of Engineering, Kırıkkale University, 71450, Yahşihan, Kırıkkale, Turkey
| | - Tamer Eren
- Department of Industrial Engineering, Faculty of Engineering, Kırıkkale University, 71450, Yahşihan, Kırıkkale, Turkey
| |
Collapse
|
5
|
Andac CA, Çakmak O, Ökten S, Çağlar-Andac S, Işıldak İ. In-silico Pharmacokinetic and Affinity Studies of Piperazine/Morpholine Substituted Quinolines in Complex with GAK as Promising Anti-HCV Agent. J Comput Biophys Chem 2021. [DOI: 10.1142/s273741652150054x] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Piperazine/morpholine derivatives of quinoline substituted at positions C-3, C-6 and C-8 has been previously prepared by SNAr reactions of 3,6,8-tribromoquinoline (1) under microwave or conventional heating reaction conditions. In this study, we evaluated binding interactions between the piperazine/morpholine substituted quinolines and its highly-likely receptor, Cyclin G associated kinase (GAK) involved in hepatitis C virus (HCV) entry into host cells, via docking, molecular dynamics (MD), thermodynamic and pharmacokinetics computations in order to select a possible lead compound, which may be used for lead-optimization in our future studies to develop novel drug candidates against HCV infections. 372 nsec MD simulations followed by MM-PBSA thermodynamic computations revealed that compound 23 ([Formula: see text]= 0.08[Formula: see text]nM) possesses the greatest potential to inhibit GAK. Pharmacokinetics computations suggest that compound 23 is a drug-like molecule as it conforms to the Lipinski filter. We determined that compound 23 could be a lead-like molecule for peripheric and cerebral HCV infections.
Collapse
Affiliation(s)
- Cenk A. Andac
- Department of Pharmaceutical Chemistry, School of Pharmacy, Istinye University, Zeytinburnu, İstanbul 34010, Turkey
- Department of Medical Pharmacology, School of Medicine, Yeditepe University, İstanbul 34755, Turkey
| | - Osman Çakmak
- Department of Gastronomy, Faculty of Arts and Design, İstanbul Rumeli University, Silivri, İstanbul 34570, Turkey
| | - Salih Ökten
- Department of Mathematic and Science Education, Division of Science Education, Faculty of Education, Kırıkkale University, Yahşihan, Kırıkkale 71450, Turkey
| | - Sena Çağlar-Andac
- Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, Fatih, İstanbul 34116, Turkey
| | - İbrahim Işıldak
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yıldız Technical University, Davutpaşa, Istanbul 34210, Turkey
| |
Collapse
|
6
|
Aydın A, Ökten S, Erkan S, Bulut M, Özcan E, Tutar A, Eren T. In–Vitro
Anticancer and Antibacterial Activities of Brominated Indeno[1,2‐b]qinoline Amines Supported with Molecular Docking and MCDM**. ChemistrySelect 2021. [DOI: 10.1002/slct.202004753] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Ali Aydın
- Department of Basic Medical Science Faculty of Medicine Bozok University Yozgat Turkey
| | - Salih Ökten
- Department of Maths and Science Education Faculty of Education Kırıkkale University, Yahşihan Kırıkkale Turkey
| | - Sultan Erkan
- Department of Chemistry Faculty of Science Sivas Cumhuriyet University Sivas Turkey
| | - Merve Bulut
- Department of Industrial Engineering Faculty of Engineering and Architecture Kırıkkale University, Yahşihan Kırıkkale Turkey
| | - Evrencan Özcan
- Department of Industrial Engineering Faculty of Engineering and Architecture Kırıkkale University, Yahşihan Kırıkkale Turkey
| | - Ahmet Tutar
- Faculty of Art and Science Department of Chemistry Sakarya University, Serdivan Sakarya Turkey
| | - Tamer Eren
- Department of Industrial Engineering Faculty of Engineering and Architecture Kırıkkale University, Yahşihan Kırıkkale Turkey
| |
Collapse
|
7
|
Çakmak O, Ökten S, Alımlı D, Ersanlı CC, Taslimi P, Koçyiğit ÜM. Novel piperazine and morpholine substituted quinolines: Selective synthesis through activation of 3,6,8-tribromoquinoline, characterization and their some metabolic enzymes inhibition potentials. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128666] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
8
|
Özcan E, Ökten S, Eren T. Decision making for promising quinoline-based anticancer agents through combined methodology. J Biochem Mol Toxicol 2020; 34:e22522. [PMID: 32407595 DOI: 10.1002/jbt.22522] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 10/30/2019] [Revised: 03/16/2020] [Accepted: 04/27/2020] [Indexed: 12/18/2022]
Abstract
During the development of effective drugs for the treatment of cancer, one of the most important tasks is to identify effective drug candidates having maximum antiproliferation and minimum side effects. This paper considers the problem of selecting the most promising anticancer agents, showing inhibition at low IC50 concentration and low releasing lactate dehydrogenase percentage (cytotoxicity). Recently, we prepared quinoline analogs bearing different functional groups and determined their anticancer potential against the HeLa, C6, and HT29 cancer cell lines using different anticancer assays. Experimentally, seven quinoline derivatives consisting of different substituents were determined as promising anticancer agents. We propose a multicriteria recommendation method to identify the most promising anticancer agents against all tested cell lines with an accurate prediction algorithm according to the available input data. A multicriteria decision-making methodology (MCDM) was used for the solution of the relevant problem in this study. Both the experimental results and MCDM method indicated that 5,7-dibromo-8-hydroxyquinoline (2) and 6,8-dibromo-1,2,3,4-tetrahydroquinoline (6) are the most promising anticancer agents against the HeLa, HT29, and C6 cell lines.
Collapse
Affiliation(s)
- Evrencan Özcan
- Department of Industrial Engineering, Faculty of Engineering, Kırıkkale University, Yahşihan, Kırıkkale, Turkey
| | - Salih Ökten
- Division of Science Education, Department of Mathematics and Science Education, Faculty of Education, Kırıkkale University, Yahşihan, Kırıkkale, Turkey
| | - Tamer Eren
- Department of Industrial Engineering, Faculty of Engineering, Kırıkkale University, Yahşihan, Kırıkkale, Turkey
| |
Collapse
|
9
|
Ökten S, Aydın A, Koçyiğit ÜM, Çakmak O, Erkan S, Andac CA, Taslimi P, Gülçin İ. Quinoline‐based promising anticancer and antibacterial agents, and some metabolic enzyme inhibitors. Arch Pharm (Weinheim) 2020; 353:e2000086. [DOI: 10.1002/ardp.202000086] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 05/15/2020] [Accepted: 05/24/2020] [Indexed: 02/03/2023]
Affiliation(s)
- Salih Ökten
- Department of Maths and Science EducationKırıkkale UniversityYahşihan Kırıkkale Turkey
| | - Ali Aydın
- Department of Basic Medical Science, Faculty of MedicineYozgat Bozok UniversityYozgat Turkey
| | - Ümit M. Koçyiğit
- Department of Basic Pharmacy Sciences, Faculty of PharmacyCumhuriyet UniversitySivas Turkey
| | - Osman Çakmak
- Department of Gastronomy, Faculty of Arts and Designİstanbul Rumeli UniversitySilivri İstanbul Turkey
| | - Sultan Erkan
- Department of Chemistry and Chemical Processing Technologies, Yıldızeli Vocational SchoolSivas Cumhuriyet UniversitySivas Turkey
| | - Cenk A. Andac
- Department of Pharmaceutical Chemistry, Faculty of PharmacyIstanbul Istinye UniversityZeytinburnu Istanbul Turkey
| | - Parham Taslimi
- Department of Biotechnology, Faculty of ScienceBartın UniversityBartın Turkey
| | - İlhami Gülçin
- Department of Chemistry, Faculty of SciencesAtatürk UniversityErzurum Turkey
| |
Collapse
|
10
|
Ökten S. Synthesis of aryl-substituted quinolines and tetrahydroquinolines through Suzuki–Miyaura coupling reactions. Journal of Chemical Research 2019. [DOI: 10.1177/1747519819861389] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The synthesis and characterization of substituted (trifluoromethoxy, thiomethyl, and methoxy) phenyl quinolines is described. Dichlorobis(triphenylphosphine)palladium(II)-catalyzed Suzuki–Miyaura cross-coupling of 6-bromo- and 6,8-dibromo-1,2,3,4-tetrahydroquinolines, 5-bromo-8-methoxyquinoline, and 5,7-dibromo-8-methoxyquinoline with substituted phenylboronic acids affords the corresponding 6-aryl- (13a–d), 6,8-diaryl- (14a–c), 5-aryl- (15), and 5,7-diaryl- (16b, c) tetrahydroquinolines and quinolines in high yields (68%–82%). The structures of all the products are characterized by 1H NMR, 13C NMR,19F NMR, and Fourier transform infrared spectroscopy and by elemental analysis.
Collapse
Affiliation(s)
- Salih Ökten
- Department of Maths and Science Education, Faculty of Education, Kırıkkale University, Kırıkkale, Turkey
| |
Collapse
|
11
|
Ökten S, Ekiz M, Koçyiğit ÜM, Tutar A, Çelik İ, Akkurt M, Gökalp F, Taslimi P, Gülçin İ. Synthesis, characterization, crystal structures, theoretical calculations and biological evaluations of novel substituted tacrine derivatives as cholinesterase and carbonic anhydrase enzymes inhibitors. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.08.063] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
12
|
Köprülü TK, Ökten S, Tekin Ş, Çakmak O. Biological evaluation of some quinoline derivatives with different functional groups as anticancer agents. J Biochem Mol Toxicol 2018; 33:e22260. [PMID: 30431695 DOI: 10.1002/jbt.22260] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [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: 07/23/2018] [Revised: 10/05/2018] [Accepted: 10/24/2018] [Indexed: 01/16/2023]
Abstract
Due to a great deal of biological activities, quinoline derivatives have drawn attention for synthesis and biological activities in the search for new anticancer drug development. In this work, a variety of substituted (phenyl, nitro, cyano, N-oxide, and methoxy) quinoline derivatives (3-13) were tested in vitro for their biological activity against cancer cell lines, including rat glioblastoma (C6), human cervical cancer cells (HeLa), and human adenocarcinoma (HT29). 6-Bromo-5-nitroquinoline (4), and 6,8-diphenylquinoline (compound 13) showed the greatest antiproliferative activity as compared with the reference drug, 5-fluorouracil (5-FU), while the other compounds showed low antiproliferative activity. 6-Bromo-5-nitroquinoline (4) possesses lower cytotoxic activity than 5-FU in HT29 cell line. Due to its the apoptotic activity 6-Bromo-5-nitroquinoline (4) has the potential to cause cancer cell death.
Collapse
Affiliation(s)
- Tuğba Kul Köprülü
- Division of Molecular Biology, Scientific and Technological Research and Application Center, Gaziosmanpasa University, Tokat, Turkey
| | - Salih Ökten
- Department of Maths and Science Education, Faculty of Education, Kırıkkale University, Kırıkkale, Turkey
| | - Şaban Tekin
- Department of Basic Medical Sciences, Faculty of Medicine, University of Health Sciences, Istanbul, Turkey
| | - Osman Çakmak
- Department of Chemistry, Faculty of Art and Science, Yıldız Technical University, Istanbul, Turkey
| |
Collapse
|
13
|
Ekiz M, Tutar A, Ökten S, Bütün B, Koçyiğit ÜM, Taslimi P, Topçu G. Synthesis, characterization, and SAR of arylated indenoquinoline-based cholinesterase and carbonic anhydrase inhibitors. Arch Pharm (Weinheim) 2018; 351:e1800167. [DOI: 10.1002/ardp.201800167] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 07/07/2018] [Accepted: 07/11/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Makbule Ekiz
- Faculty of Art and Science, Department of Chemistry; Sakarya University; Serdivan Turkey
| | - Ahmet Tutar
- Faculty of Art and Science, Department of Chemistry; Sakarya University; Serdivan Turkey
| | - Salih Ökten
- Faculty of Education, Department of Maths and Science Education; Kırıkkale University; Kirikkale Turkey
| | - Burcu Bütün
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry; Bezmialem Vakif University; Istanbul Turkey
| | - Ümit M. Koçyiğit
- Vocational School of Health Services; Cumhuriyet University; Sivas Turkey
| | - Parham Taslimi
- Faculty of Science, Department of Chemistry; Ataturk University; Erzurum Turkey
| | - Gülaçtı Topçu
- Faculty of Pharmacy, Department of Pharmacognosy/Phytochemistry; Bezmialem Vakif University; Istanbul Turkey
| |
Collapse
|
14
|
|
15
|
Abstract
The asymmetric unit of the title compound, C13H12Br2N2·0.5H2O, includes two molecules of 5,7-dibromo-1,2,3,4-tetrahydroacridin-9-amine and one water molecule. In the crystal, C—H...O, N—H...N, N—H...O and O—H...N hydrogen bonds connect the molecules, forming a two-dimensional network parallel to (010). The two-dimensional sheets are further assembled into a three-dimensional structure through C—H...π and π–π stacking interactions [centroid–centroid distance = 3.719 (2) Å].
Collapse
|
16
|
Abstract
In the title compound, C10H5BrN2, the whole molecule is essentially planar (r.m.s. deviation = 0.005 Å). The crystal packing features face-to-face π–π stacking interactions [centroid–centroid distance = 3.755 (3) Å] between the pyridine and benzene rings of the quinoline ring systems of adjacent molecules, along the a-axis direction. Short Br...Br contacts of 3.5908 (12) Å (compared to a van der Waals separation of 3.70 Å) are also observed.
Collapse
|
17
|
Çelik Í, Akkurt M, Ekiz M, Tutar A, Ökten S, Ersanlı CC. 11-[Bis(trimethylsilyl)amino]-2,4-bis(trimethylsilyl)-7,8,9,10-tetrahydro-6H-cyclohepta[1,2-b]quinoline. IUCrData 2017. [DOI: 10.1107/s2414314617008884] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
In the title compound, C26H48N2Si4, the cycloheptane ring adopts a chair conformation, while the quinolinyl ring system is almost planar [maximum deviation = 0.040 (3) Å for one of the C atoms carrying a Me3Si group]. In the crystal, in the absence of classical hydrogen bonding, the packing is dominated by van der Waals forces. One of the N-bound trimethylsilyl groups is disordered by rotation about the C—SiMe3bond, and was modelled over two sets of sites in the ratio 0.873 (8):0.127 (8).
Collapse
|
18
|
Abstract
In the title compound, C10H7Br2NO, the methoxy C atom deviates from the quinoline ring system (r.m.s deviation = 0.003 Å) by 1.204 (4) Å. In the crystal, C—H...O hydrogen bonds link the molecules into infinite chains along theb-axis direction. Aromatic π–π stacking interactions [centroid-to-centroid distance = 3.7659 (19) Å] are also observed.
Collapse
|
19
|
Çelik Í, Ökten S, Ersanlı CC, Akkurt M, Çakmak O. 6-Bromo-1,2,3,4-tetrahydroquinoline-8-carbonitrile. IUCr Data 2016. [DOI: 10.1107/s241431461601854x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
In the title compound, C10H9BrN2, one of the methylene groups of the piperidine ring is disordered over two sets of sites in a 0.692 (8):0.308 (8) ratio, which leads to two envelope conformations. In the crystal, inversion dimers linked by pairs of N—H...N hydrogen bonds generateR22(12) loops.
Collapse
|
20
|
|
21
|
|
22
|
Köprülü TK, Tekin Ş, Ökten S, Çınar M, Duman S, Çakmak O. Detection of mechanism and anticancer activity of the new quinoline compounds MC20 and MC21*. J Biotechnol 2014. [DOI: 10.1016/j.jbiotec.2014.07.318] [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] [Indexed: 11/26/2022]
|
23
|
Çelik Í, Akkurt M, Ökten S, Çakmak O, García-Granda S. 3,6,8-Tribromo-quinoline. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o3133. [PMID: 21589435 PMCID: PMC3011610 DOI: 10.1107/s1600536810045484] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2010] [Accepted: 11/05/2010] [Indexed: 05/30/2023]
Abstract
The title mol-ecule, C(9)H(4)Br(3)N, is almost planar, the maximum deviation being 0.110 (1) Å. The crystal structure is stabilized by weak aromatic π-π inter-actions [centroid-centroid distance = 3.802 (4) Å] between the pyridine and benzene rings of the quinoline ring systems of adjacent mol-ecules.
Collapse
Affiliation(s)
- Ísmail Çelik
- Department of Physics, Faculty of Arts and Sciences, Cumhuriyet University, 58140 Sivas, Turkey
| | - Mehmet Akkurt
- Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
| | - Salih Ökten
- Department of Chemistry, Faculty of Art and Science, Gaziosmanpaşa University, 60240 Tokat, Turkey
| | - Osman Çakmak
- Department of Chemistry, Faculty of Art and Science, Gaziosmanpaşa University, 60240 Tokat, Turkey
| | - Santiago García-Granda
- Departamento Química Física y Analítica, Facultad de Química, Universidad Oviedo, C/ Julián Clavería, 8, 33006 Oviedo (Asturias), Spain
| |
Collapse
|