1
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Konovalova IS, Geleverya AO, Kovalenko SM, Reiss GJ. One-pot synthesis and crystal structure of diethyl 2,6-dimethyl-4-(1-(2-nitrophenyl)-1 H-1,2,3-triazol-4-yl)-1,4-dihydropyridine-3,5-dicarboxylate, C 21H 23N 5O 6. Z KRIST-NEW CRYST ST 2023. [DOI: 10.1515/ncrs-2022-0573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Abstract
C21H23N5O6, monoclinic, P21/c (no. 14), a = 8.4861(4) Å, b = 16.3198(8) Å, c = 15.8521(8) Å, β = 97.605(5)°, V = 2176.1(2) Å3, Z = 4, R
gt(F) = 0.0463, wR
ref = 0.1201, T = 293(2) K.
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Affiliation(s)
- Irina S. Konovalova
- Scientific Research Division “Chemistry of Functional Materials”, SSI “Institute for Single Crystals” NAS of Ukraine , Nauky Ave., 60 , Kharkiv , 61072 , Ukraine
- Institut für Anorganische Chemie und Strukturchemie, Lehrstuhl II: Material- und Strukturforschung, Heinrich-Heine-Universität Düsseldorf , Universitätsstrasse 1, D-40225 Düsseldorf , Germany
| | - Anna O. Geleverya
- V. N. Karazin Kharkiv National University , 4 Svobody sq. , Kharkiv , 61077 , Ukraine
- Department of Organic Chemistry , University of Chemistry and Technology , Technicka 5, 166 28 Prague 6 , Czech Republic
| | - Sergiy M. Kovalenko
- V. N. Karazin Kharkiv National University , 4 Svobody sq. , Kharkiv , 61077 , Ukraine
| | - Guido J. Reiss
- Institut für Anorganische Chemie und Strukturchemie, Lehrstuhl II: Material- und Strukturforschung, Heinrich-Heine-Universität Düsseldorf , Universitätsstrasse 1, D-40225 Düsseldorf , Germany
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2
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Lalithamaheswari B, Anu Radha C. Structural and conformational dynamics of human milk oligosaccharides, lacto- N-fucopentaose I and II, through molecular dynamics simulation. J Carbohydr Chem 2022. [DOI: 10.1080/07328303.2022.2150203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- B. Lalithamaheswari
- Research Laboratory of Molecular Biophysics, Department of Physics, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - C. Anu Radha
- Research Laboratory of Molecular Biophysics, Department of Physics, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
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3
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Vaksler Y, Hryhoriv HV, Kovalenko SM, Perekhoda LO, Georgiyants VA. Synthesis, X-ray diffraction study, analysis of inter-molecular inter-actions and mol-ecular docking of ethyl 1-(3-tosyl-quinolin-4-yl)piperidine-4-carboxyl-ate. Acta Crystallogr E Crystallogr Commun 2022; 78:890-896. [PMID: 36072518 PMCID: PMC9443802 DOI: 10.1107/s2056989022007691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 07/30/2022] [Indexed: 11/16/2022]
Abstract
The title compound, C24H26N2O4S, can be obtained via two synthetic routes. According to our investigations, the most suitable way is by the reaction of ethyl 2-bromo-acetate with sodium tosyl-sulfinate in dry DMF. It was crystallized from methanol into the monoclinic P21/n space group with a single mol-ecule in the asymmetric unit. Hirshfeld surface analysis was performed to define the hydrogen bonds and analysis of the two-dimensional fingerprint plots was used to distinguish the different types of inter-actions. Two very weak non-classical C-H⋯O hydrogen bonds were found and the contributions of short contacts to the Hirshfeld surface were determined. Mol-ecules form an isotropic network of inter-molecular inter-actions according to an analysis of the pairwise inter-action energies. A mol-ecular docking study evaluated the inter-actions in the title compound with the active centers of macromolecules of bacterial targets (Staphylococcus aureus DNA Gyrase PDB ID: 2XCR, Mycobacterium tuberculosis topoisomerase II PDB ID: 5BTL, Streptococcus pneumoniae topoisomerase IV PDB ID: 4KPF) and revealed high affinity towards them that exceeded the reference anti-biotics of the fluoro-quinolone group.
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Affiliation(s)
- Yevhenii Vaksler
- SSI Institute for Single Crystals, National Academy of Sciences of Ukraine, 60 Nauky Ave, Kharkov 61001, Ukraine
| | - Halyna V. Hryhoriv
- The National University of Pharmacy, 53 Pushkinska St., Kharkiv 61002, Ukraine
| | - Sergiy M. Kovalenko
- V. N. Karazin Kharkiv National University, 4 Svobody Sq., Kharkiv 61077, Ukraine
| | - Lina O. Perekhoda
- The National University of Pharmacy, 53 Pushkinska St., Kharkiv 61002, Ukraine
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4
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Zadorozhnii PV, Kiselev VV, Hrek OO, Kharchenko AV, Okhtina OV. Synthesis, spectral characteristics, and molecular structure of 2-(2,4-dichlorophenyl)-6-(2-methoxybenzyl)-4-(trichloromethyl)-4H-1,3,5-oxadiazine. Struct Chem 2022. [DOI: 10.1007/s11224-022-02024-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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5
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Kariaka N, Trush VA, Dyakonenko VV, Shishkina SV, Smola SS, Rusakova NV, Sliva TY, Gawryszewska P, Neto ANC, Malta OL, Amirkhanov VM. New luminescent lanthanide tetrakis - complexes NEt4[LnL4] based on dimethyl-N-benzoylamidophosphate. Chemphyschem 2022; 23:e202200129. [PMID: 35536851 DOI: 10.1002/cphc.202200129] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 05/10/2022] [Indexed: 11/10/2022]
Abstract
The new lanthanide dimethyl-N-benzoylamidophosphate (HL) based tetrakis-complexes NEt 4 [LnL 4 ] (Ln 3+ = La, Nd, Sm, Eu, Gd, Tb, Dy) are reported. The complexes are characterized by means of NMR, IR, absorption, and luminescent spectroscopy as well as by elemental, X-Ray, and thermal gravimetric analyses. The phenyl groups of the four ligands of the complex anion are directed towards one side, while the methoxy groups are directed in the opposite side, which makes the complexes under consideration structurally similar to calixarenes. The effect of changing the alkali metal counterion to the organic cation NEt 4 + on the structure and properties of the tetrakis-complex [LnL4]- is analyzed. The complexes exhibit bright characteristic for respective lanthanides luminescence. Rather high intensity of the band of 5 D 0 → 7 F 4 transition, observed in the luminescence spectrum of NEt 4 [EuL 4 ], is discussed based on theoretical calculations.
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Affiliation(s)
- Natalia Kariaka
- Taras Shevchenko National University of Kyiv, Department of Chemistry, 64/13, Volodymyrska Street, 01601, Kyiv, UKRAINE
| | - Victor A Trush
- Taras Shevchenko National University of Kyiv: Kiivs'kij nacional'nij universitet imeni Tarasa Sevcenka, inorganic chemistry, UKRAINE
| | - Viktoriya V Dyakonenko
- Institute for Single Crystals NASU: Naukovo-tehnologicnij kompleks Institut monokristaliv Nacional'na akademia nauk Ukraini, -, UKRAINE
| | - Svitlana V Shishkina
- Institute for Single Crystals NASU: Naukovo-tehnologicnij kompleks Institut monokristaliv Nacional'na akademia nauk Ukraini, -, UKRAINE
| | - Sergii S Smola
- A V Bogatsky Physico-Chemical Institute NASU: Fiziko-himicnij institut imeni O V Bogatskogo Nacional'na akademia nauk Ukraini, Chemistry of lanthanides, UKRAINE
| | - Nataliia V Rusakova
- A V Bogatsky Physico-Chemical Institute NASU: Fiziko-himicnij institut imeni O V Bogatskogo Nacional'na akademia nauk Ukraini, chemistry of lanthanides, UKRAINE
| | - Tetiana Y Sliva
- Taras Shevchenko National University of Kyiv: Kiivs'kij nacional'nij universitet imeni Tarasa Sevcenka, inorganic chemistry, UKRAINE
| | - Paula Gawryszewska
- University of Wroclaw: Uniwersytet Wroclawski, faculty of chemistry, POLAND
| | - Albano N Carneiro Neto
- University of Aveiro: Universidade de Aveiro, Physics Dep. and CICECO-Aveiro Materials Institute, BRAZIL
| | - Oscar L Malta
- Universidade Federal de Pernambuco, de Quirmica Fundamental, BRAZIL
| | - Vladimir M Amirkhanov
- Taras Shevchenko National University of Kyiv: Kiivs'kij nacional'nij universitet imeni Tarasa Sevcenka, inorganic chemistry, UKRAINE
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6
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Ovchynnikov V, Gubina K, Shatrava Y, Dyakonenko V, Konovalova I, Shishkina S, Amirkhanov V. Copper(II) complexes based on N-(bis(diethylamino)phosphoryl)-2,2,2-trichloroacetamide with pyridine and 4,4′-bipyridine. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2050714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Vladimir Ovchynnikov
- Inorganic Chemistry Department, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
| | - Kateryna Gubina
- Inorganic Chemistry Department, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
| | - Yuliia Shatrava
- Inorganic Chemistry Department, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
| | - Viktoriya Dyakonenko
- National Academy of Science of Ukraine, State Scientific Institution “Institute for Single Crystals”, Kharkiv, Ukraine
| | - Irina Konovalova
- National Academy of Science of Ukraine, State Scientific Institution “Institute for Single Crystals”, Kharkiv, Ukraine
| | - Svitlana Shishkina
- National Academy of Science of Ukraine, State Scientific Institution “Institute for Single Crystals”, Kharkiv, Ukraine
- V.N. Karazin Kharkiv National University, Kharkiv, Ukraine
| | - Vladimir Amirkhanov
- Inorganic Chemistry Department, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
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7
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Shishkina SV, Shaposhnyk AM, Baumer VN, Voloshchuk NI, Bondarenko PS, Ukrainets IV. 1-Allyl-4-hydroxy-2,2-dioxo-N-(4-methoxyphenyl)-1H-2λ 6,1-benzothiazine-3-carboxamide: polymorphic transition due to grinding with the loss of the biological activity. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2022; 78:70-79. [PMID: 35129121 DOI: 10.1107/s2052520621013093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 12/09/2021] [Indexed: 06/14/2023]
Abstract
A study of two polymorphic forms of 1-allyl-4-hydroxy-2,2-dioxo-N-(4-methoxyphenyl)-1-2λ6,1-benzothiazine-3-carboxamide (a structural analogue of piroxicam) has revealed some regularities in the crystal structure formation due to different evaporation rates from the tested solvents. The monoclinic polymorph crystallized from ethyl acetate is formed due to a large number of very weak C-H...O and C-H...π interactions as well as one strong stacking interaction. The triclinic polymorph crystallized from N,N-dimethylformamide is formed due to a small number of weak specific interactions and a maximal number of strong stacking interactions. The stacked dimer is a complex building unit in both polymorphic structures. Further analysis showed that the monoclinic structure is layered while the triclinic one is columnar. The two polymorphic structures also differ in their biological activity (antidiuretic and analgesic). The monoclinic polymorph possesses very high biological activity while the triclinic polymorph is almost inactive. The polymorphic transition of the biologically active metastable monoclinic structure into the inactive stable triclinic one within four weeks of grinding is caused by orientational factors rather than conformational ones and is accompanied by a change in the redistribution of interaction energies in the crystal from anisotropic to more isotropic. Thus, a slow polymorphic transition after grinding results in a loss of the biological activity.
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Affiliation(s)
- Svitlana V Shishkina
- SSI "Institute for Single Crystals" NAS of Ukraine, 60 Nauky ave., Kharkiv, 61001, Ukraine
| | - Anna M Shaposhnyk
- SSI "Institute for Single Crystals" NAS of Ukraine, 60 Nauky ave., Kharkiv, 61001, Ukraine
| | - Vyacheslav N Baumer
- SSI "Institute for Single Crystals" NAS of Ukraine, 60 Nauky ave., Kharkiv, 61001, Ukraine
| | - Natali I Voloshchuk
- N.I. Pirogov Vinnitsa National Medical University, 56 Pirogov str., Vinnitsa, 21018, Ukraine
| | - Pavlo S Bondarenko
- N.I. Pirogov Vinnitsa National Medical University, 56 Pirogov str., Vinnitsa, 21018, Ukraine
| | - Igor V Ukrainets
- National University of Pharmacy, 4 Valentinovska str., Kharkiv, 61002, Ukraine
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8
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Uzun S, Demircioğlu Z, Koç E, Ceylan M. X-ray, DFT (Chemical activity, Charge transfer and Non-linear optical properties) and Spectroscopic Studies on 2-amino-4-(4-bromophenyl)-5,6[H]quinoline-3-carbonitrile (I) and 2-amino-4-(2-bromophenyl)-5,6[H]quinoline-3-carbonitrile (II). J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131318] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Shyshkina MO, Shishkina SV, Ostras KS, Gorobets NY, Chebanov VA, Desenko SM. The first coordination complex of (5 R,6 R,7 S)-5-(furan-2-yl)-7-phenyl-4,5,6,7-tetra-hydro-[1,2,4]triazolo[1,5- a]pyrimidin-6-amine with zinc(II) acetate-chloride. Acta Crystallogr E Crystallogr Commun 2021; 77:1323-1326. [PMID: 34925907 PMCID: PMC8647737 DOI: 10.1107/s2056989021012226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 11/17/2021] [Indexed: 11/10/2022]
Abstract
The title complex, systematic name catena-poly[[[acetato-chlorido-zinc(II)]-μ-(5R,6R,7S)-5-(furan-2-yl)-7-phenyl-4,5,6,7-tetra-hydro-[1,2,4]triazolo[1,5-a]py-rimi-din-6-amine] monohydrate], {[Zn(C2H3O2)Cl(C15H15N5O)]·H2O} n , is the first coordination complex in which the neutral tetra-hydro-triazolo-pyrimidine derivative acts as bridging ligand between two zinc mol-ecules. As a result, polymeric chains of the coordination complex are found. The coordination of the zinc metal atom occurs with the lone pairs of the triazolo nitro-gen atom and amino group. The positive charge of the zinc atom is compensated by the chlorine anion and deprotonated acetic acid. The coordination complex exists as a monohydrate in the crystalline phase. The water mol-ecules bind neighbouring polymeric chains by the formation of O-H⋯O, O-H⋯Cl and N-H⋯O hydrogen bonds.
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Affiliation(s)
- Mariia O. Shyshkina
- SSI Institute for Single Crystals, NAS of Ukraine, 60 Nauky ave., Kharkiv 61001, Ukraine
| | - Svitlana V Shishkina
- SSI Institute for Single Crystals, NAS of Ukraine, 60 Nauky ave., Kharkiv 61001, Ukraine
| | - Konstantin S. Ostras
- SSI Institute for Single Crystals, NAS of Ukraine, 60 Nauky ave., Kharkiv 61001, Ukraine
| | - Nikolay Yu. Gorobets
- SSI Institute for Single Crystals, NAS of Ukraine, 60 Nauky ave., Kharkiv 61001, Ukraine
| | - Valentyn A. Chebanov
- SSI Institute for Single Crystals, NAS of Ukraine, 60 Nauky ave., Kharkiv 61001, Ukraine
| | - Sergey M. Desenko
- SSI Institute for Single Crystals, NAS of Ukraine, 60 Nauky ave., Kharkiv 61001, Ukraine
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10
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Naidoo KJ, Bruce-Chwatt T, Senapathi T, Hillebrand M. Multidimensional Free Energy and Accelerated Quantum Library Methods Provide a Gateway to Glycoenzyme Conformational, Electronic, and Reaction Mechanisms. Acc Chem Res 2021; 54:4120-4130. [PMID: 34726899 DOI: 10.1021/acs.accounts.1c00477] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Enzyme reactions are complex to simulate accurately, and none more so than glycoenzymes (glycosyltransferase and glycosidases). A rigorous sampling of the protein frame and the conformationally plural carbohydrate substrate coupled with an unbiased treatment of the electron dynamics is needed to discover the true reaction landscapes. Here, we demonstrate the effectiveness of two computational methods ported in libraries that we have developed. The first is a flat histogram free energy method called FEARCF capable of multidimensional sampling and rapidly converging to a complete coverage of phase space. The second, the Quantum Supercharger Library (QSL), is a method that accelerates the computation of the ab initio electronic wave function as well as the integral derivatives on graphical processing units (GPUs). These QSL accelerated computations form the core components needed for direct quantum dynamics and QM/MM dynamics when coupled with legacy codes such as GAMESS and NWCHEM, making state of the art hyper-parallel electronic computations in chemistry and chemical biology possible. The combination of QSL (acceleration of ab initio QM computation) and FEARCF (multidimensional hyper-parallel reaction dynamics) makes the simulation of ab initio QM/MM reaction dynamics of enzyme catalysis feasible. Enzymes that process carbohydrates pose an added challenge as their pyranose ring substrates span multidimensional conformational space whose sampling is an intimate function of the catalytic mechanism. Here, we use the pairing of FEARCF and QSL to simulate the catalytic effect of the glycoenzyme β-N-acetylglucosamine transferase (OGT). The reaction mechanism is discovered from a variable three bond reaction surface using SCCDFTB. The role of the OGT in distorting the pyranose ring of β-N-acetylglucosamine (GlcNAc) away from the equilibrium 4C1 chair conformation toward the E3 envelope needed for the transition state is discovered from its pucker free energy hypersurfaces (or free energy volume, FEV). A complete GlcNAc ring pucker HF 6-31g FEV is constructed from ab initio QM dynamics in vacuum and ab initio QM/MM dynamics in the OGT catalytic domain. The OGT is shown to clearly lower the pathway toward the transition state E3 ring conformer as well as stabilize it by 1.63 kcal/mol. Illustrated here is the use of QSL accelerated ab initio QM/MM dynamics that thoroughly explores carbohydrate catalyzed reactions through a FEARCF multidimensional sampling of the interdependence between reaction and conformational space. This demonstrates how experimentally inaccessible molecular and electronic mechanisms that underpin enzyme catalysis can be discovered by directly modeling the dynamics of these complex reactions.
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Affiliation(s)
- Kevin J Naidoo
- Scientific Computing Research Unit and Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa
- Institute of Infectious Disease and Molecular Medicine, Faculty of Health Science, University of Cape Town, Rondebosch 7701, South Africa
| | - Tomás Bruce-Chwatt
- Scientific Computing Research Unit and Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa
| | - Tharindu Senapathi
- Scientific Computing Research Unit and Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa
| | - Malcolm Hillebrand
- Scientific Computing Research Unit and Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa
- Nonlinear Dynamics and Chaos Group, Department of Mathematics, University of Cape Town, Rondebosch 7701, South Africa
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Impact of Deuteration and Temperature on Furan Ring Dynamics. MOLECULES (BASEL, SWITZERLAND) 2021; 26:molecules26102889. [PMID: 34068118 PMCID: PMC8152745 DOI: 10.3390/molecules26102889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 04/28/2021] [Accepted: 05/10/2021] [Indexed: 11/17/2022]
Abstract
Despite significant progress in conformational analysis of cyclic molecules, the number of computational studies is still limited while most of that available in the literature data have been obtained long time ago with outdated methods. In present research, we have studied temperature driven conformational changes of the furan ring at three different temperatures. Additionally, the effect of deuteration on the ring dynamics is discussed; in addition, the aromaticity indices following the Bird and HOMA schemes are computed along all trajectories. Our ab initio molecular dynamic simulations revealed that deuteration has changed the furan ring dynamics and the obvious consequences; in addition, the shape and size of molecule are expected to be different.
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12
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Shyshkina MO, Lega DA, Goryachiy VD, Shemchuk LM, Levashov DV, Shemchuk LA. 2-Amino-4-(4-chloro-1-ethyl-2,2-dioxo-1 H-benzo[ c][1,2]thia-zin-3-yl)-7,7-dimethyl-5-oxo-5,6,7,8-tetra-hydro-4 H-chromene-3-carbo-nitrile: single-crystal X-ray diffraction study and Hirshfeld surface analysis. Acta Crystallogr E Crystallogr Commun 2021; 77:294-297. [PMID: 33953954 PMCID: PMC8061096 DOI: 10.1107/s2056989021002085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 02/22/2021] [Indexed: 04/02/2024]
Abstract
In the title compound, C22H22ClN3O4S, which has potential non-steroidal anti-inflammatory activity, the benzo-thia-zine and cyclo-hexenone rings both adopt a distorted sofa conformation while the 4H-pyrane ring adopts a very flattened sofa conformation. The two bicyclic fragments are skewed to each other, with the dihedral angle between their least-squares planes being 72.8 (1)°. In the crystal, the mol-ecules form a hydrogen-bonded chain parallel to the a axis due to N-H⋯O and N-H⋯Cl hydrogen bonds. Neighbouring chains are linked by C-H⋯N, C-H⋯O and π-π stacking inter-actions. Hirshfeld surface analysis was used to investigate the importance of the different types of inter-molecular inter-actions whose contributions are: H⋯H = 44.7%, O⋯H/H⋯O = 21.8%, N⋯H/H⋯N = 11.9%, C⋯H/H⋯C = 9.5%, Cl⋯H/H⋯Cl = 7.2%. Parts of the mol-ecule, viz. the phenyl ring and the ethyl side chain, are equally disordered over two sets of sites.
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Affiliation(s)
- Mariia O. Shyshkina
- SSI Institute for Single Crystals NAS of Ukraine, 60 Nauky ave., Kharkiv 61001, Ukraine
| | - Dmitry A. Lega
- National University of Pharmacy, 4 Valentynivska st., Kharkiv 61168, Ukraine
| | | | - Ludmila M. Shemchuk
- National University of Pharmacy, 4 Valentynivska st., Kharkiv 61168, Ukraine
| | - Dmitriy V. Levashov
- National University of Pharmacy, 4 Valentynivska st., Kharkiv 61168, Ukraine
| | - Leonid A. Shemchuk
- National University of Pharmacy, 4 Valentynivska st., Kharkiv 61168, Ukraine
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13
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Marchenko A, Koidan G, Hurieva AN, Shishkina S, Rusanov E, Kostyuk A. Ring Enlargement of N-Phosphanyl-1,2,3,4-tetrahydroquinazolines. J Org Chem 2020; 85:14467-14472. [PMID: 32830971 DOI: 10.1021/acs.joc.0c00750] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We found that 1-phosphanyl-1,2,3,4-tetrahydroquinazolines undergo ring enlargement. Their treatment with trifluoroacetic or hydrochloric acid afforded diazaphosphepinium salts. Deprotonation of these salts gave the corresponding neutral diazaphosphepines. The reaction of 1-phosphanyl-1,2,3,4-tetrahydroquinazolines with diazomethane or phenylazide afforded triazaphosphocine derivatives via insertion of P-N moiety. At the same time, an analogous hexahydropyrimidine derivative reacted with phenylazide in a normal manner at the phosphorus atom to afford the P(V) derivative.
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Affiliation(s)
- Anatoliy Marchenko
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska 5, Kyiv 94 02660, Ukraine
| | - Georgyi Koidan
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska 5, Kyiv 94 02660, Ukraine
| | - Anastasiia N Hurieva
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska 5, Kyiv 94 02660, Ukraine
| | - Svitlana Shishkina
- STC "Institute for Single Crystals", National Academy of Sciences of Ukraine, 60 Nauki ave., Kharkiv 61001, Ukraine
| | - Eduard Rusanov
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska 5, Kyiv 94 02660, Ukraine
| | - Aleksandr Kostyuk
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska 5, Kyiv 94 02660, Ukraine
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14
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Shishkina SV, Petrushova LA, Burian KO, Fedosov AI, Ukrainets IV. Methyl 5-chloro-4-hy-droxy-2,2-dioxo-1 H-2λ 6,1-benzo-thia-zine-3-carboxyl-ate: structure and Hirshfeld surface analysis. Acta Crystallogr E Crystallogr Commun 2020; 76:1657-1660. [PMID: 33117584 PMCID: PMC7534242 DOI: 10.1107/s2056989020012566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 09/15/2020] [Indexed: 12/02/2022]
Abstract
The title compound, C10H8ClNO5S, which has potential analgesic activity, crystallizes in space group P21/n. The benzo-thia-zine ring system adopts an inter-mediate form between sofa and twist-boat conformations. The coplanarity of the ester substituent to the bicyclic fragment is stabilized by an O-H⋯O intra-molecular hydrogen bond. In the crystal, hydrogen bonds of type N-H⋯O(SO2) link the mol-ecules into zigzag chains extending along the b-axis direction. Neighbouring chains are linked by both O-H⋯Cl and C-H⋯Cl inter-actions. A Hirshfeld surface analysis was used to compare different types of inter-molecular inter-actions, giving contributions of O⋯H/H⋯O = 42.0%, C⋯H/H⋯C = 17.3%, Cl⋯H/H⋯Cl = 14.2%, H⋯H = 11.1%.
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Affiliation(s)
- Svitlana V. Shishkina
- SSI Institute for Single Crystals’ National Academy of Science of Ukraine, 60 Nauky ave., Kharkiv 61001, Ukraine
- Department of Inorganic Chemistry, V. N. Karazin Kharkiv National University, 4 Svobody Sq., Kharkiv 61077, Ukraine
| | | | - Kateryna O. Burian
- National University of Pharmacy, 4 Valentynivska St, Kharkiv 61168, Ukraine
| | - Andrii I. Fedosov
- National University of Pharmacy, 4 Valentynivska St, Kharkiv 61168, Ukraine
| | - Igor V. Ukrainets
- National University of Pharmacy, 4 Valentynivska St, Kharkiv 61168, Ukraine
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15
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Voskoboinik OY, Stavytskyi VV, Antypenko OM, Kazunin MS, Kravtsov DV, Shishkina SV, Kovalenkoa SI. Synthesis and structure of pyrido[1,2- a]quinazoline condensed derivatives. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1762223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Olexii Yu. Voskoboinik
- Department of Organic and Bioorganic Chemistry, Zaporizhzhia State Medical University, Zaporizhzhia, Ukraine
| | - Viktor V. Stavytskyi
- Department of Organic and Bioorganic Chemistry, Zaporizhzhia State Medical University, Zaporizhzhia, Ukraine
| | - Oleksii M. Antypenko
- Department of Organic and Bioorganic Chemistry, Zaporizhzhia State Medical University, Zaporizhzhia, Ukraine
| | - Maksym S. Kazunin
- Department of Organic and Bioorganic Chemistry, Zaporizhzhia State Medical University, Zaporizhzhia, Ukraine
| | - Dmytro V. Kravtsov
- Department of Organic and Bioorganic Chemistry, Zaporizhzhia State Medical University, Zaporizhzhia, Ukraine
| | - Svetlana V. Shishkina
- SSI “Institute for Single Crystals”, National Academy of Science of Ukraine, Kharkiv, Ukraine
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16
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Ferreras Moreno M, Stinson CJ, Shepherd RG, Welsh ID, Altaner C, Crittenden DL. Temperature-Dependent Blue Shifting of O-H Stretching Frequencies in Crystalline Cellulose Explained. J Phys Chem B 2020; 124:4924-4930. [PMID: 32441522 DOI: 10.1021/acs.jpcb.0c02793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Increasing the temperature of a chemical system generally causes covalent bonds to lengthen and weaken, often the first step in initiating chemical reactions. However, for some hydrogen-bonded systems, infrared (IR) spectroscopy measurements reveal that covalent O-H bonds actually strengthen and therefore shorten when heated. In 1957, Finch and Lippincott proposed a simple one-dimensional (1D) model to explain this effect, in which thermal excitation of intermolecular stretching modes leads to lengthening and weakening of intermolecular O-H···O hydrogen bonds, thereby indirectly strengthening the associated covalent O-H bonds. Taking cellulose (an infinitely repeating polymer of d-glucose) as an example, we use molecular dynamics modeling to show that the same mechanism is responsible for temperature-dependent blue shifting of O-H stretching bands in IR spectra of carbohydrate biopolymers, except that interchain hydrogen bonds are weakened by thermal excitation of chain-separation modes, while intrachain hydrogen bonds are weakened by thermally induced changes in ring puckering and orientation of ring substituents but not reorientation of glucose units relative to one another or overall twisting of the cellulose chains.
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Affiliation(s)
- Manuel Ferreras Moreno
- School of Physical and Chemical Sciences, University of Canterbury, Christchurch 8041, New Zealand
| | - Chris J Stinson
- School of Physical and Chemical Sciences, University of Canterbury, Christchurch 8041, New Zealand
| | - Ross G Shepherd
- School of Physical and Chemical Sciences, University of Canterbury, Christchurch 8041, New Zealand
| | - Ivan D Welsh
- School of Physical and Chemical Sciences, University of Canterbury, Christchurch 8041, New Zealand
| | - Clemens Altaner
- New Zealand School of Forestry, University of Canterbury, Christchurch 8041, New Zealand
| | - Deborah L Crittenden
- School of Physical and Chemical Sciences, University of Canterbury, Christchurch 8041, New Zealand
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17
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Sakhno YI, Murlykina MV, Zbruyev OI, Kozyryev AV, Shishkina SV, Sysoiev D, Musatov VI, Desenko SM, Chebanov VA. Ultrasonic-assisted unusual four-component synthesis of 7-azolylamino-4,5,6,7-tetrahydroazolo[1,5- a]pyrimidines. Beilstein J Org Chem 2020; 16:281-289. [PMID: 32180844 PMCID: PMC7059450 DOI: 10.3762/bjoc.16.27] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 02/19/2020] [Indexed: 11/23/2022] Open
Abstract
Four-component reactions of 3-amino-1,2,4-triazole or 5-amino-1H-pyrazole-4-carbonitrile with aromatic aldehydes and pyruvic acid or its esters under ultrasonication were studied. Unusual for such a reaction type, a cascade of elementary stages led to the formation of 7-azolylaminotetrahydroazolo[1,5-a]pyrimidines.
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Affiliation(s)
- Yana I Sakhno
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Av. 60, 61072 Kharkiv, Ukraine
| | - Maryna V Murlykina
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Av. 60, 61072 Kharkiv, Ukraine.,Faculty of Chemistry, V. N. Karazin Kharkiv National University, Svobody Sq. 4, 61077 Kharkiv, Ukraine
| | - Oleksandr I Zbruyev
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Av. 60, 61072 Kharkiv, Ukraine
| | - Anton V Kozyryev
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Av. 60, 61072 Kharkiv, Ukraine
| | - Svetlana V Shishkina
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Av. 60, 61072 Kharkiv, Ukraine.,Faculty of Chemistry, V. N. Karazin Kharkiv National University, Svobody Sq. 4, 61077 Kharkiv, Ukraine
| | - Dmytro Sysoiev
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 542/2, 166 10 Praha 6, Czech Republic
| | - Vladimir I Musatov
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Av. 60, 61072 Kharkiv, Ukraine
| | - Sergey M Desenko
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Av. 60, 61072 Kharkiv, Ukraine.,Faculty of Chemistry, V. N. Karazin Kharkiv National University, Svobody Sq. 4, 61077 Kharkiv, Ukraine
| | - Valentyn A Chebanov
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Av. 60, 61072 Kharkiv, Ukraine.,Faculty of Chemistry, V. N. Karazin Kharkiv National University, Svobody Sq. 4, 61077 Kharkiv, Ukraine
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18
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Methyl 4-Hydroxy-2,2-Dioxo-1H-2λ6,1-Benzothiazine-3-Carboxylate and Its Analogs Modified in the Benzene Moiety of the Molecule as New Analgesics. Sci Pharm 2020. [DOI: 10.3390/scipharm88010010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In order to identify new regularities of the “structure–analgesic activity” relationship in the series of 2,1-benzothiazine derivatives, the synthesis of methyl 4-hydroxy-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxylate and a group of its analogs substituted in the benzene moiety of the molecule, as well as their mono-and diammonium salts, was performed with tris(hydroxymethyl)aminomethane. The algorithm was proposed; it allows for uniquely solving the question of the nature of the substituent and its true position in the benzothiazine core based on the complex use of NMR (1H and 13C) and mass spectrometry data. Using single-crystal X-ray diffraction analysis it was proven that salt formation first passes through the cyclic sulfamide group and only then through the 4-hydroxyl group, and is always accompanied by a significant conformational rearrangement of the molecule. Based on the results of pharmacological tests it was found that modification of the benzene moiety of the molecule can be used as a method for enhancing the analgesic properties of the class of compounds studied. The presence of a substitute in position 7 is particularly effective, regardless of its nature. A comparative analysis of the analgesic activity of the initial esters and their mono- and diammonium salts convincingly showed that the common belief about a direct relationship between the solubility of a substance and the level of its biological effect is not always true. As it turned out, increasing the solubility in water can lead to a variety of consequences: From a significant increase in analgesia to its complete elimination. It was suggested that the analgesic activity of the compounds studied is determined not by solubility, but by the molecular conformations formed during their obtainment.
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19
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Shishkina SV, Ukrainets IV, Vashchenko OV, Voloshchuk NI, Bondarenko PS, Petrushova LA, Sim G. Biological properties of two enantiomorphic forms of N-(2,6-dimethylphenyl)-4-hydroxy-2,2-dioxo-1H-2λ 6,1-benzothiazine-3-carboxamide, a structural analogue of piroxicam. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2020; 76:69-74. [PMID: 31919309 DOI: 10.1107/s2053229619016450] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 12/06/2019] [Indexed: 11/10/2022]
Abstract
The title benzothiazine-3-carboxamide, C17H16N2O4S, crystallized in two enantiomorphic crystal forms with the space groups P32 and P31 despite the absence of a classic stereogenic atom. The molecular structures are mirror images of each other. Only one sulfonyl O atom takes part in intramolecular hydrogen bonding as a proton acceptor and this atom is different in the two enantiomorphic structures. As a result, the S atom becomes a pseudo-stereogenic centre. This fact is worth taking into account due to the different biological activities of the enantiomorphic forms. One form possesses a high analgesic activity, while the other form revealed a high anti-inflammatory activity.
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Affiliation(s)
- Svitlana V Shishkina
- SSI `Institute for Single Crystals' NAS of Ukraine, 60 Nauky ave., Kharkiv 61001, Ukraine
| | - Igor V Ukrainets
- Department of Pharmaceutical Chemistry, National University of Pharmacy, 53 Pushkinska St., Kharkiv 61002, Ukraine
| | - Olga V Vashchenko
- Institute for Scintillation Materials NAS of Ukraine, 60 Nauky ave., Kharkiv 61001, Ukraine
| | - Natali I Voloshchuk
- Department of Pharmacology, N.I. Pirogov Vinnitsa National Medical University, 56 Pirogov St., Vinnitsa 21018, Ukraine
| | - Pavlo S Bondarenko
- Department of Pharmacology, N.I. Pirogov Vinnitsa National Medical University, 56 Pirogov St., Vinnitsa 21018, Ukraine
| | - Lidiya A Petrushova
- Department of Pharmaceutical Chemistry, National University of Pharmacy, 53 Pushkinska St., Kharkiv 61002, Ukraine
| | - Galina Sim
- Department of Pharmaceutical Chemistry, Far Eastern State Medical University, 35 Murav'ev-Amursky St., Khabarovsk 680000, Russian Federation
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20
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Stavytskyi V, Voskoboinik O, Antypenko O, Krasovska N, Shabelnyk K, Konovalova I, Shishkyna S, Kholodniak S, Kovalenko S. Tandem heterocyclization of 2‐(azolyl‐(azinyl‐))anilines as an efficient method for preparation of substituted pyrrolo[1,2‐
a
]azolo‐(azino‐)[
c
]quinazolines. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Viktor Stavytskyi
- Department of Organic and Bioorganic ChemistryZaporizhzhia State Medical University Zaporizhzhia Ukraine
| | - Oleksii Voskoboinik
- Department of Organic and Bioorganic ChemistryZaporizhzhia State Medical University Zaporizhzhia Ukraine
| | - Oleksii Antypenko
- Department of Organic and Bioorganic ChemistryZaporizhzhia State Medical University Zaporizhzhia Ukraine
| | - Nataliia Krasovska
- Department of Organic and Bioorganic ChemistryZaporizhzhia State Medical University Zaporizhzhia Ukraine
| | - Konstantyn Shabelnyk
- Department of Organic and Bioorganic ChemistryZaporizhzhia State Medical University Zaporizhzhia Ukraine
| | - Iryna Konovalova
- SSI Institute for Single CrystalsNational Academy of Science of Ukraine Kharkiv Ukraine
| | - Svitlana Shishkyna
- SSI Institute for Single CrystalsNational Academy of Science of Ukraine Kharkiv Ukraine
| | - Sergiy Kholodniak
- Department of Organic and Bioorganic ChemistryZaporizhzhia State Medical University Zaporizhzhia Ukraine
| | - Serhii Kovalenko
- Department of Organic and Bioorganic ChemistryZaporizhzhia State Medical University Zaporizhzhia Ukraine
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21
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Ivachtchenko AV, Mitkin OD, Kravchenko DV, Kovalenko SM, Shishkina SV, Bunyatyan ND, Konovalova IS, Dmitrieva IG, Ivanov VV, Langer T. Synthesis, X-ray crystal structure, Hirshfeld surface analysis, and molecular docking study of novel inhibitor of hepatitis B: methyl 4-fluoro-3-(morpholinosulfonyl)benzo[b]thiophene-2-carboxylate. Heliyon 2019; 5:e02738. [PMID: 31844693 PMCID: PMC6895763 DOI: 10.1016/j.heliyon.2019.e02738] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/02/2019] [Accepted: 10/23/2019] [Indexed: 11/18/2022] Open
Abstract
A method of 4-fluoro-3-(morpholinosulfonyl)benzo[b]thiophene-2-carboxylate synthesis has been developed and the electronic and spatial structure of a new biologically active molecule has been studied both theoretically and experimentally. The title compound was crystallized from acetonitrile and the single crystal X-ray analysis has revealed that it exists in a monoclinic P21/c space group, with one molecule in the asymmetric part of the unit cell. Hirshfeld surface analysis was used to study intermolecular interactions in the crystal. Molecular docking study evaluates the investigated compound as a new potential inhibitor of hepatitis B. Testing for anti-hepatitis B virus activity has shown that this substance demonstrates in vitro nanomolar inhibitory activity against HBV.
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Affiliation(s)
- Alexandre V. Ivachtchenko
- ChemRar Research and Development Institute, 7 Nobel st., Innovation Center Skolkovo Territory, Moscow, 143026, Russia
| | - Oleg D. Mitkin
- ChemRar Research and Development Institute, 7 Nobel st., Innovation Center Skolkovo Territory, Moscow, 143026, Russia
- Corresponding author.
| | - Dmitry V. Kravchenko
- Chemical Diversity Research Institute, 2A Rabochaya st., Khimki, Moscow Region, 141400, Russia
| | - Sergiy M. Kovalenko
- ChemRar Research and Development Institute, 7 Nobel st., Innovation Center Skolkovo Territory, Moscow, 143026, Russia
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Healthcare of the Russian Federation (Sechenovskiy University), 8 Trubeckaya st., Moscow, 119991, Russia
- V.N.Karazin Kharkiv National University, 4 Svobody sq., Kharkiv, 61077, Ukraine
| | - Svitlana V. Shishkina
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Healthcare of the Russian Federation (Sechenovskiy University), 8 Trubeckaya st., Moscow, 119991, Russia
- State Scientific Institution “Institute for Single Crystals” of the National Academy of Sciences of Ukraine, 61001, Kharkov, Ukraine
- V.N.Karazin Kharkiv National University, 4 Svobody sq., Kharkiv, 61077, Ukraine
| | - Natalya D. Bunyatyan
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Healthcare of the Russian Federation (Sechenovskiy University), 8 Trubeckaya st., Moscow, 119991, Russia
- Federal State Budgetary Institution "Scientific Centre for Expert Evaluation of Medicinal Products" of the Ministry of Health of the Russian Federation, Petrovsky Boulevard 8, bld. 2, Moscow, 127051, Russia
| | - Irina S. Konovalova
- State Scientific Institution “Institute for Single Crystals” of the National Academy of Sciences of Ukraine, 61001, Kharkov, Ukraine
| | - Irina G. Dmitrieva
- Chemical Diversity Research Institute, 2A Rabochaya st., Khimki, Moscow Region, 141400, Russia
| | - Vladimir V. Ivanov
- V.N.Karazin Kharkiv National University, 4 Svobody sq., Kharkiv, 61077, Ukraine
| | - Thierry Langer
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstraße 14, A-1090, Vienna, Austria
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22
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Choudhary A, Chandra A. An ab initio molecular dynamics study of benzene in water at supercritical conditions: Structure, dynamics, and polarity of hydration shell water and the solute. J Chem Phys 2019; 151:044508. [PMID: 31370512 DOI: 10.1063/1.5094570] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Anisotropic structure and dynamics of the hydration shell of a benzene solute in supercritical water are investigated by means of ab initio molecular dynamics simulations. The polarity and structural distortion of the benzene solute in supercritical water are also investigated in this study. Calculations are done at 673 K for three different densities of the solvent. The simulations are carried out using the Becke-Lee-Yang-Parr (BLYP) and also the Becke-Lee-Yang-Parr functional including dispersion corrections of Grimme (BYLP-D). The structural anisotropy is found to exist even at supercritical conditions as elucidated by the radial distribution functions of different conical regions and also by angular and spatial distribution functions. The benzene-water πH-bond and also the water-water hydrogen bonds are found to exist even at the supercritical temperature of 673 K. However, the numbers of these hydrogen bonds are reduced substantially with a decrease in water density. The water molecules in the axial region of benzene are found to be preferably oriented with one OH vector pointing toward the benzene ring, whereas the water molecules located in the equatorial region are found to orient their dipoles mostly parallel to the ring plane. The orientational distributions, however, are found to be rather broad at the supercritical temperature due to thermal fluctuations. Although the water molecules have faster dynamics at these supercritical conditions, a slight difference is observed in the dynamics of the solvation shell and bulk molecules. The conformational flexibility of the ring is found to be enhanced which causes an increase in polarity of the benzene solute in water under supercritical conditions.
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Affiliation(s)
- Ashu Choudhary
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Amalendu Chandra
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
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23
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Rybalka A, Shishkina S, Ukrainets I, Sidorenko L, Sim G. Mol-ecular and crystal structure of 5,9-dimethyl-5 H-pyrano[3,2- c:5,6- c']bis-[2,1-benzo-thia-zin]-7(9 H)-one 6,6,8,8-tetroxide di-methyl-formamide monosolvate. Acta Crystallogr E Crystallogr Commun 2019; 75:1076-1078. [PMID: 31392028 PMCID: PMC6659341 DOI: 10.1107/s2056989019008788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 06/20/2019] [Indexed: 11/15/2022]
Abstract
The title mol-ecule crystallizes as a di-methyl-formamide monosolvate, C19H14N2O6S2·C3H7NO. The mol-ecule was expected to adopt mirror symmetry but slightly different conformational characteristics of the condensed benzo-thia-zine ring lead to point group symmetry 1. In the crystal, mol-ecules form two types of stacking dimers with distances of 3.464 (2) Å and 3.528 (2) Å between π-systems. As a result, columns extending parallel to [100] are formed, which are connected to inter-mediate di-methyl-formamide solvent mol-ecules by C-H⋯O inter-actions.
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Affiliation(s)
- Andrii Rybalka
- V. N. Karazin Kharkiv National University, 4 Svobody sq., Kharkiv 61077, Ukraine
| | - Svitlana Shishkina
- SSI "Institute for Single Crystals", National Academy of Sciences of Ukraine, 60, Nauky Ave., Kharkiv 61001, Ukraine
| | - Igor Ukrainets
- National University of Pharmacy, 4 Valentynivska St., Kharkiv 61168, Ukraine
| | - Lyudmila Sidorenko
- National University of Pharmacy, 4 Valentynivska St., Kharkiv 61168, Ukraine
| | - Galina Sim
- Far Eastern State Medical University, 35 Murav’eva-Amurskogo St., Khabarovsk, 680000, Russian Federation
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24
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The Crystal Structure of N-(1-Arylethyl)-4-methyl- 2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxamides as the Factor Determining Biological Activity Thereof. Sci Pharm 2019. [DOI: 10.3390/scipharm87020010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In order to detect new structural and biological patterns in a series of hetaryl-3-carboxylic acid derivatives, the optically pure (S)- and (R)-enantiomers of N-(1-arylethyl)-4-methyl- 2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxamides, their true racemates, and mechanical racemic mixtures have been synthesized in independent ways. The particular features of the 1Н- and 13С-NMR spectra of all synthesized substances, liquid chromato-mass spectrometric behavior thereof under electrospray ionization conditions, and also the results of polarimetric and X-ray diffraction studies have been discussed. Pharmacological screening on a model of carrageenan inflammation has found a clear relationship between the spatial structure of the studied objects and biological activity thereof. Enantiomers with chiral centers having (S)-configuration showed weak inhibition of pain and inflammatory reactions, while their mirror (R)-isomers exhibited very powerful analgesic and antiphlogistic properties under the same conditions, with the level of specific activity exceeding that of Lornoxicam and Diclofenac. Taking obtained data into account, a noticeable decrease in the activity of mechanical racemic mixtures, consisting of one-half of the “wrong” (S)-enantiomers, is quite natural. The true racemate of N-(1-phenylethyl)-amide proved itself in a similar way, while 4-methoxy-substituted analog thereof stood out against this background with unexpectedly high analgesic and anti-inflammatory activities. A comparative analysis of X-ray diffraction data has found that crystalline and molecular structure of racemic N-[1-(4-methoxyphenyl)ethyl]-4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxamide is completely different from that of the original enantiomers and, moreover, very unusual for racemates. Obviously, it is the factor determining the unique character of the biological effects of the said substance.
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25
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Shishkina SV, Isaiev IA, Urzhuntseva VV, Palchykov VA. The formation of the salt and neutral molecule cocrystal from equimolar solution of heliamine and bicyclo[2.2.1]hept-5-ene-endo-2,3-dicarboxylic acid. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2019; 75:192-200. [PMID: 32830744 DOI: 10.1107/s205252061900115x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Accepted: 01/22/2019] [Indexed: 06/11/2023]
Abstract
The possible interaction of 6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline (heliamine) with bicyclo[2.2.1]hept-5-ene-endo-2,3-dicarboxylic acid anhydride has been studied. Instead of the reaction with heliamine, the acid anhydride was hydrolyzed into the appropriate dicarboxylic acid. An equimolar mixture of unreacted heliamine and in-situ-generated dicarboxylic acid crystallized in space group P21/c. The comprehensive study of the obtained crystals shows that the peculiarities of the crystallization process lead to the formation of the salt-cocrystal structure where the dianion interacts simultaneously with two cations forming a chain as the primary structural motif. The neutral molecules of dicarboxylic acid link the dianions of the neighbouring chains, forming a layer as the secondary structural motif. As a result, the stronger hydrogen bonds formed by the neutral molecules play a secondary role in the crystal structure formation.
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Affiliation(s)
- Svitlana V Shishkina
- SSI `Institute for Single Crystals', NAS of Ukraine, 60 Nauky Avenue, Kharkiv, 61001, Ukraine
| | - Ivan A Isaiev
- Department of Inorganic Chemistry, V. N. Karazin Kharkiv National University, 4 Svobody Square, Kharkiv, 61077, Ukraine
| | - Viktoriya V Urzhuntseva
- Department of Inorganic Chemistry, V. N. Karazin Kharkiv National University, 4 Svobody Square, Kharkiv, 61077, Ukraine
| | - Vitalii A Palchykov
- Department of Organic Chemistry, Oles Honchar Dnipro National University, 72 Gagarina Street, Dnipro, 49010, Ukraine
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26
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Omelchenko IV, Shishkin OV, Dopieralski P, Latajka Z. About the Aromaticity of symm-Triaminotrinitrobenzene. J Phys Chem A 2019; 123:2244-2251. [DOI: 10.1021/acs.jpca.9b00433] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Iryna V. Omelchenko
- Department of X-ray Diffraction Study and Quantum Chemistry, SSI “Institute for Single Crystals” NAS of Ukraine, 60 Nauky ave., Kharkiv 61072, Ukraine
- Faculty of Chemistry, V. N. Karazin Kharkiv National University, 4 Svobody sq., Kharkiv 61077, Ukraine
| | - Oleg V. Shishkin
- Department of X-ray Diffraction Study and Quantum Chemistry, SSI “Institute for Single Crystals” NAS of Ukraine, 60 Nauky ave., Kharkiv 61072, Ukraine
- Faculty of Chemistry, V. N. Karazin Kharkiv National University, 4 Svobody sq., Kharkiv 61077, Ukraine
| | | | - Zdzislaw Latajka
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, 50-383 Wroclaw, Poland
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27
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Kotlyar VM, Kolomoitsev OO, Nikolaievskyi DV, Pedan PI, Chumak AY, Orlov VD, Shishkina SV, Doroshenko AO. Photoreactive fused aziridinylpiperazines on the background of 4-substituted chalcones and their benzimidazolic analogs. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.12.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Experimental and density functional theory (MEP, FMO, NLO, Fukui functions) and antibacterial activity studies on 2-amino-4- (4-nitrophenyl) -5,6-dihydrobenzo [h] quinoline-3-carbonitrile. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.10.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Dyakonenko VV, Kozachkova AN, Tsaryk NV, Pekhnyo VI, Lavryk RV. (μ-Methylenediphosphonato-κ 4 O, O': O'', O''')bis[(ethyl-ene-diamine-κ 2 N, N')palladium(II)] tetra-hydrate. Acta Crystallogr E Crystallogr Commun 2018; 74:1838-1841. [PMID: 30574384 PMCID: PMC6281122 DOI: 10.1107/s2056989018016419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 11/19/2018] [Indexed: 11/26/2022]
Abstract
The title compound, [Pd2(C2H8N2)2(CH2O6P2)]·4H2O, comprises of a binuclear mol-ecule (point group symmetry 2), with a twofold rotation axis running through the central C atom of the methyl-enedi-phospho-nate (MDP) anion. The PdII atom has a square-planar coordination environment defined by the N atoms of a bidentate ethyl-enedi-amine (en) ligand and two O atoms of the bridging MDP anion. In the crystal structure, metal complexes are arranged in layers parallel (001) and are sandwiched between layers containing disordered water mol-ecules of crystallization. Extensive intra-layer hydrogen bonds of the type N-H⋯O in the metal complex layer and O-H⋯O in the water layer, as well as O-H⋯O hydrogen bonds between the two types of layers, lead to the formation a three-dimensional network structure. The two lattice water mol-ecules are each equally disordered over two positions.
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Affiliation(s)
- Viktoriya V. Dyakonenko
- SSI "Institute for Single Crystals", National Academy of Sciences of Ukraine, Nauki Ave 60, Kharkiv 61001, Ukraine
| | - Alexandra N. Kozachkova
- V.I. Vernadsky Institute of General and Inorganic Chemistry of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Natalia V. Tsaryk
- V.I. Vernadsky Institute of General and Inorganic Chemistry of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Vasily I. Pekhnyo
- V.I. Vernadsky Institute of General and Inorganic Chemistry of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Ruslan V. Lavryk
- National University of Life and Environmental Science of Ukraine, Kyiv, Ukraine
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Molecular Conformations and Biological Activity of N-Hetaryl(aryl)alkyl-4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxamides. Sci Pharm 2018. [DOI: 10.3390/scipharm86040050] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The analysis of our previous studies on the search for synthetic analgesics among N-R-amides of bicyclic hetaryl-3-carboxylic acids has been performed; on its basis N-hetaryl(aryl)-alkyl-4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxamides have been selected as new study objects. The “one pot synthesis” of these compounds, which is simple to perform and at the same time highly effective, has been offered. The method consists in the initial reaction of 4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxylic acid and N,N′-carbonyldiimidazole in anhydrous N,N-dimethylformamide with the subsequent amidation of imidazolide formed with hetarylalkyl- or benzylamines in the same solvent. The peculiarities of 1H- and 13C-NMR spectra of the substances obtained, as well as their electrospray ionization liquid chromato-mass spectra are discussed. According to the results of the pharmacological tests carried out on the model of carrageenan inflammation it has been found that all without exception N-hetaryl(aryl)alkyl-4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxamides demonstrate the statistically significant analgesic and anti-inflammatory properties. Among the substances presented in this article analgesics and antiphlogistics, which increase the pain threshold and suppress the inflammatory response more effectively than Lornoxicam and Diclofenac in the same doses, have been identified. The molecular and crystal structures of a large group of the substances synthesized have been studied by X-ray diffraction analysis. Comparison of these data with the results of biological tests has revealed the fact of excellent correlation between the molecular conformations of N-hetaryl(aryl)alkyl-4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxamides recorded in the crystal and the potency of their analgesic effect. N-Thiophen-2-ylmethyl- and N-4-methoxybenzyl-amides of 4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxylic acid has shown a high analgesic and anti-inflammatory effect, therefore, they deserve more careful research.
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Semenenko AN, Babak NL, Shishkina SV, Musatov VI, Mazepa AV, Lipson VV. Synthesis, molecular and crystal structure of spirocyclopropyl derivatives of lupane series and their ability to induce cholesteric mesophase in nematic solvents. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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32
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Martsinko E, Seifullina I, Chebanenko E, Pirozhok O, Dyakonenko V, Shishkina S. Synthesis and Crystal Structure of Bis(Citrato)Germanate and Stannate with Tris(Phenanthroline)Nickel(II) Cation. CHEMISTRY JOURNAL OF MOLDOVA 2018. [DOI: 10.19261/cjm.2018.513] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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33
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Zemlyanaya NI, Karnozhitskaya TM, Musatov VI, Konovalova IS, Shishkina SV, Lipson VV. Synthesis and Chemical Transformations of 5-Alkyl(phenyl)-4,5,6,7-tetrahydro[1,2,4]triazolo[1,5-a]pyrimidin-7-oles. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2018. [DOI: 10.1134/s1070428018080201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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34
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Ukrainets IV, Burian AA, Baumer VN, Shishkina SV, Sidorenko LV, Tugaibei IA, Voloshchuk NI, Bondarenko PS. Synthesis, Crystal Structure, and Biological Activity of Ethyl 4-Methyl-2,2-dioxo-1 H-2λ⁶,1-benzothiazine-3-carboxylate Polymorphic Forms. Sci Pharm 2018; 86:scipharm86020021. [PMID: 29848976 PMCID: PMC6027672 DOI: 10.3390/scipharm86020021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 05/19/2018] [Accepted: 05/21/2018] [Indexed: 12/02/2022] Open
Abstract
Continuing the search for new potential analgesics among the derivatives of 4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxylic acid, the possibility of obtaining its esters by the alkylation of the corresponding sodium salt with iodoethane in dimethyl sulfoxide (DMSO) at room temperature was studied. It was found that under such conditions, together with the oxygen atom of the carboxyl group, a heteroatom of nitrogen is also alkylated. Therefore, the product of the reaction studied is a mixture of ethyl 4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxylate (major) and its 1-ethyl-substituted analog (minor). A simple but very effective method of preparative separation of these compounds was proposed. Moreover, the heterogeneous crystallization from ethanol was revealed to result in a monoclinic polymorphic form of ethyl 4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxylate, while the homogeneous crystallization results in its orthorhombic form. The molecular and crystal structures of both forms were confirmed by X-ray diffraction analysis, and the phase purity by powder diffraction study. The pharmacological tests carried out on the model of a carrageenan edema showed that the screening dose of 20 mg/kg of 1-ethyl-substituted ester and the orthorhombic form of its analog unsubstituted in position 1 exhibited weak anti-inflammatory and moderate analgesic effects. At the same time, the monoclinic form of ethyl 4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxylate appeared to be both a powerful analgesic and an anti-inflammatory agent that exceeded Piroxicam and Meloxicam in the same doses by these indicators. A detailed comparative analysis of the molecular and crystal structures of two polymorphic forms of ethyl 4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxylate was carried out using quantum chemical calculations of the energies of pairwise interactions between molecules. An explanation of the essential differences of their biological properties based on this was offered.
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Affiliation(s)
- Igor V Ukrainets
- Department of Pharmaceutical Chemistry, National University of Pharmacy, 53 Pushkinska st., 61002 Kharkiv, Ukraine.
| | - Anna A Burian
- Department of Pharmaceutical Chemistry, National University of Pharmacy, 53 Pushkinska st., 61002 Kharkiv, Ukraine.
| | - Vyacheslav N Baumer
- SSI "Institute for Single Crystals", National Academy of Sciences of Ukraine, 60 Nauki ave., 61001 Kharkiv, Ukraine.
| | - Svitlana V Shishkina
- SSI "Institute for Single Crystals", National Academy of Sciences of Ukraine, 60 Nauki ave., 61001 Kharkiv, Ukraine.
- Department of Inorganic Chemistry, V. N. Karazin Kharkiv National University, 4 Svobody sq., 61077 Kharkiv, Ukraine.
| | - Lyudmila V Sidorenko
- Department of Pharmaceutical Chemistry, National University of Pharmacy, 53 Pushkinska st., 61002 Kharkiv, Ukraine.
| | - Igor A Tugaibei
- Department of Clinical Biochemistry, Forensic Toxicology, and Pharmacy, Kharkiv Medical Academy of Postgraduate Education, 58 Amosov st., 61176 Kharkiv, Ukraine.
| | - Natali I Voloshchuk
- Department of Pharmacology, N. I. Pirogov Vinnitsa National Medical University, 56 Pirogov st., 21018 Vinnitsa, Ukraine.
| | - Pavlo S Bondarenko
- Department of Pharmacology, N. I. Pirogov Vinnitsa National Medical University, 56 Pirogov st., 21018 Vinnitsa, Ukraine.
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Kozachkova O, Tsaryk N, Pekhnyo V, Trachevskyi V, Rozhenko A, Dyakonenko V. Complexation of dichloro(ethylenediamine)palladium(II) with 1-hydroxyethylidene-1,1-diphosphonic acid. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.01.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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36
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Seifullina II, Martsinko EE, Chebanenko EA, D’yakonenko VV, Shishkina SV, Pirozhok OV. Structure of the {[Cu2Ge(μ-Cit)2(μ-INH)2]·4H2O}
n
Coordination Polymer Where H4Cit is Citric Acid, INH is Isonicotinic Acid Hydrazide. J STRUCT CHEM+ 2018. [DOI: 10.1134/s0022476618010237] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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37
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4-Methyl-2,2-dioxo-1H-2λ⁶,1-benzothiazine-3-carboxylic Acid. Peculiarities of Preparation, Structure, and Biological Properties. Sci Pharm 2018. [PMID: 29518063 PMCID: PMC5874539 DOI: 10.3390/scipharm86010009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
In order to determine the regularities of the structure–analgesic activity relationship, the peculiarities of obtaining, the spatial structure, and biological properties of 4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxylic acid and some of its derivatives have been studied. Using nuclear magnetic resonance (NMR) spectroscopy and X-ray diffraction analysis, it has been proven that varying the reaction conditions using alkaline hydrolysis of methyl 4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxylate makes it possible to successfully synthesize a monohydrate of the target acid, its sodium salt, or 4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine. The derivatographic study of the thermal stability of 4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxylic acid monohydrate has been carried out; based on this study, the optimal conditions completely eliminating the possibility of unwanted decomposition have been proposed for obtaining its anhydrous form. It has been shown that 4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine is easily formed during the decarboxylation of not only 4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxylic acid, but also its sodium salt, which is capable of losing СО2 both in rather soft conditions of boiling in an aqueous solution, and in more rigid conditions of dry heating. The NMR spectra of the compounds synthesized are given; their spatial structure is discussed. To study the biological properties of 4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxylic acid and its sodium salt, the experimental model of inflammation caused by subplantar introduction of the carrageenan solution in one of the hind limbs of white rats was used. The anti-inflammatory activity and analgesic effect were assessed by the degree of edema reduction and the ability to affect the pain response compared to the animals of control groups. According to the results of the tests performed, it has been found that after intraperitoneal injection, the substances synthesized demonstrate a moderate anti-inflammatory action and simultaneously increase the pain threshold of the experimental animals very effectively, exceeding Lornoxicam and Diclofenac in a similar dose by their analgesic activity.
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Grygorenko OO, Demenko D, Volochnyuk DM, Komarov IV. Following Ramachandran 2: exit vector plot (EVP) analysis of disubstituted saturated rings. NEW J CHEM 2018. [DOI: 10.1039/c7nj05015a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
EVP analysis of common saturated rings revealed five regions (α–ε); only part of them corresponds to 3D molecular structures.
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Affiliation(s)
- Oleksandr O. Grygorenko
- Enamine Ltd (www.enamine.net)
- Kyiv 02066
- Ukraine
- National Taras Shevchenko University of Kyiv
- Kyiv 01601
| | | | - Dmitry M. Volochnyuk
- Enamine Ltd (www.enamine.net)
- Kyiv 02066
- Ukraine
- Institute of Organic Chemistry National Academy of Sciences of Ukraine
- Kyiv 02094
| | - Igor V. Komarov
- Enamine Ltd (www.enamine.net)
- Kyiv 02066
- Ukraine
- National Taras Shevchenko University of Kyiv
- Kyiv 01601
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Vahdani Alviri B, Pourayoubi M, Saneei A, Keikha M, van der Lee A, Crochet A, Ajees AA, Nečas M, Fromm KM, Damodaran K, Jenny TA. Puckering behavior in six new phosphoric triamides containing aliphatic six- and seven-membered ring groups and a database survey of analogous ring-containing structures. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.11.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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40
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Grishina IV, Makeev DV, Rybakov VB, Lapteva VL, Palyulin VA, Zefirov NS. Synthesis, crystal and molecular structure of 3,7-ditosyl-1,5-diphenyl-3,7-diazabicyclo[3.3.1]nonane. DOKLADY CHEMISTRY 2017. [DOI: 10.1134/s0012500817110015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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41
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Voskoboynik OY, Kolomoets OS, Kovalenko SI, Shishkina SV. [1,2,4]Triazino[2,3-с]quinazolines 1. Methods for the preparation and spectral characteristics of substituted 3-R1-6-R3-6,7-dihydro-2H-[1,2,4]triazino[2,3-с]quinazolin-2-ones. Chem Heterocycl Compd (N Y) 2017. [DOI: 10.1007/s10593-017-2142-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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42
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Synthesis and Molecular Structure of Ethyl-4-Hydroxy-1-Phenyl-2,2-Dioxo-1H-2λ6,1-Benzothiazine-3-Carboxylate. Pharm Chem J 2017. [DOI: 10.1007/s11094-017-1638-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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43
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44
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Seifullina II, Martsinko EE, Chebanenko EA, Pirozhok OV, Dyakonenko VV, Shihkina SV. Synthesis, thermal stability, and structure of bis(citrato)germanates: [Co(Phen)3][Ge(HCit)2] · 2H2O, [Fe(Phen)3][Ge(HCit)2] · 4H2O (H4Cit = citric acid, Phen = 1,10-phenanthroline). RUSS J COORD CHEM+ 2017. [DOI: 10.1134/s1070328417080061] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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45
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Prytula-Kurkunova AY, Trush VA, Dyakonenko VV, Sliva TY, Amirkhanov VM. Tris( N-{bis-[meth-yl(phen-yl)amino]-phosphor-yl}benzene-sulfonamidato-κ 2O, O')(1,10-phenanthroline-κ 2N, N')lanthanum(III). Acta Crystallogr E Crystallogr Commun 2017; 73:1076-1081. [PMID: 28775887 PMCID: PMC5499295 DOI: 10.1107/s2056989017008970] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 06/15/2017] [Indexed: 11/10/2022]
Abstract
The asymmetric unit of [La(C20H21N3O3PS)3(C12H8N2)] is created by one LaIII ion, three deprotonated N-{bis-[meth-yl(phen-yl)amino]-phosphor-yl}benzene-sulfonamidate (L-) ligands and one 1,10-phenanthroline (Phen) mol-ecule. Each LaIII ion is eight-coordinated (6O+2N) by three phosphoryl O atoms, three sulfonyl O atoms of three L- ligands and two N atoms of the chelating Phen ligand, leading to the formation of six- and five-membered metallacycles, respectively. The lanthanum coordination polyhedron has a bicapped trigonal-prismatic geometry. 'Sandwich-like' intra-molecular π-π stacking inter-actions are observed between the 1,10-phenanthroline ligand and two benzene rings of two different L- ligands. The phenyl rings of L- that are not involved in the stacking inter-actions show minor positional disorder. Mol-ecules form layers parallel to the (010) plane due to weak C-H⋯O inter-molecular hydrogen bonds. Unidentified highly disordered solvate mol-ecules that occupy ca 400 Å3 large voids have been omitted from the refinement model.
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Affiliation(s)
| | - Victor A. Trush
- National Taras Shevchenko University of Kyiv, Department of Chemistry, 12 Lva Tolstogo str., 01033 Kyiv, Ukraine
| | | | - Tetyana Yu. Sliva
- National Taras Shevchenko University of Kyiv, Department of Chemistry, 12 Lva Tolstogo str., 01033 Kyiv, Ukraine
| | - Vladimir M. Amirkhanov
- National Taras Shevchenko University of Kyiv, Department of Chemistry, 12 Lva Tolstogo str., 01033 Kyiv, Ukraine
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Seifullina II, Martsinko EE, Chebanenko EA, Pirozhok OV, Dyakonenko VV, Shishkina SV. Structure of bis(citrato)germanates with different types of cations: (Hphen)2[Ge(HCit)2·3H2O], [CuCl(phen)2]2[Ge(HCit)2·6H2O], where H4Cit is citric acid, phen IS 1,10-phenanthroline. J STRUCT CHEM+ 2017. [DOI: 10.1134/s0022476617030143] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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47
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Voskoboynik OY, Кovalenko SI, Okovytyy SI, Shishkina SV. Dimethyl Acetylenedicarboxylate in Reactions with Substituted 3‐(2‐aminophenyl)‐6‐R
1
‐1,2,4‐triazin‐5‐(2
H
)‐ones: Structure and Properties of the Products. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Olexii Yu. Voskoboynik
- Department of Organic and Bioorganic ChemistryZaporizhia State Medical University Mayakovsky Avenue, 26 Zaporizhia 69035 Ukraine
| | - Sergiy I. Кovalenko
- Department of Organic and Bioorganic ChemistryZaporizhia State Medical University Mayakovsky Avenue, 26 Zaporizhia 69035 Ukraine
| | - Sergiy I. Okovytyy
- Department of Organic ChemistryDnepropetrovsk National University 72 Gagarina Avenue Dnepropetrovsk 49050 Ukraine
| | - Svitlana V. Shishkina
- SSI «Institute for Single Crystals», National Academy of Sciences of Ukraine 60 Nauki Avenue Kharkiv b61001 Ukraine
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Zemlyanaya NI, Borodina VV, Musatov VI, Shishkina SV, Sofronov DS, Lipson VV. Cyclocondensations of 3-alkylpyrazol-5-amines with 3-arylprop-2-enals and cyclic 1,3-diketones. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2017. [DOI: 10.1134/s1070428017040145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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49
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Semenenko AN, Babak NL, Gella IM, Musatov VI, Shishkina SV, Sofronov DS, Lipson VV. Cyclopropanation and epoxidation of 2-ylidene derivatives of lupane series. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2017. [DOI: 10.1134/s1070428017020245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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50
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New Synthesis, Structure and Analgesic Properties of Methyl 1-R-4-Methyl-2,2-Dioxo-1H-2λ⁶,1-Benzothiazine-3-Carboxylates. Sci Pharm 2017; 85:scipharm85010002. [PMID: 28085092 PMCID: PMC5388141 DOI: 10.3390/scipharm85010002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Revised: 01/03/2017] [Accepted: 01/04/2017] [Indexed: 11/16/2022] Open
Abstract
According to the principles of the methodology of bioisosteric replacements a series of methyl 1-R-4-methyl-2,2-dioxo-1H-2λ⁶,1-benzothiazine-3-carboxylates has been obtained as potential analgesics. In addition, a fundamentally new strategy for the synthesis of compounds of this chemical class involving the introduction of N-alkyl substituent at the final stage in 2,1-benzothiazine nucleus already formed has been proposed. Using nuclear magnetic resonance (NMR) spectroscopy, mass spectrometry and X-ray diffraction analysis it has been proven that in the DMSO/K₂CO₃ system the reaction of methyl 4-methyl-2,2-dioxo-1H-2λ⁶,1-benzothiazine-3-carboxylate and alkyl halides leads to formation of N-substituted derivatives with good yields regardless of the structure of the alkylating agent. The peculiarities of NMR (¹Н and 13С) spectra of the compounds synthesized, their mass spectrometric behavior and the spatial structure are discussed. In N-benzyl derivative the ability to form a monosolvate with methanol has been found. According to the results of the pharmacological testing conducted on the model of the thermal tail-flick it has been determined that replacement of 4-ОН-group in methyl 1-R-4-hydroxy-2,2-dioxo-1H-2λ⁶,1-benzothiazine-3-carboxylates for the methyl group is actually bioisosteric since all methyl 1-R-4-methyl-2,2-dioxo-1H-2λ⁶,1-benzothiazine-3-carboxylates synthesized demonstrated a statistically significant analgesic effect. The majority of the substances can inhibit the thermal pain response much more effective than piroxicam in the same dose. Under the same conditions as an analgesic the N-methyl-substituted analog exceeds not only piroxicam, but more active meloxicam as well. Therefore, it deserves in-depth biological studies on other experimental models.
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