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Ngo Hanna J, Nziko VDPN, Ntie-Kang F, Mbah JA, Toze FAA. The use of minimal topological differences to inspire the design of novel tetrahydroisoquinoline analogues with antimalarial activity. Heliyon 2021; 7:e07032. [PMID: 34095565 PMCID: PMC8165424 DOI: 10.1016/j.heliyon.2021.e07032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 02/18/2021] [Accepted: 05/06/2021] [Indexed: 11/30/2022] Open
Abstract
A quantitative structure-activity relationship (QSAR) study was conducted using nineteen previously synthesized, and tested 1-aryl-6-hydroxy-1,2,3,4-tetrahydroisoquinolines with proven in vitro activities against Plasmodium falciparum. In order to computationally design and screen potent antimalarial agents, these compounds with known biological activity ranging from 0.697 to 35.978 μM were geometry optimized at the B3LYP/6-311 + G(d,p) level of theory, using the Gaussian 09W software. To calculate the topological differences, the series of the nineteen compounds was superimposed and a hypermolecule obtained with s¯ = 17 and 20 vertices. Other molecular descriptors were considered in order to build a highly predictive QSAR model. These include the minimal topological differences (MTD), LogP, two dimensional polarity surface area (TDPSA), dipole moment (μ), chemical hardness (η), electrophilicity (ω), potential energy (Ep), electrostatic energy (Eele) and number of rotatable bonds (NRB). By using a training set composed of 15 randomly selected compounds from this series, several QSAR equations were derived. The QSAR equations obtained were then used to attempt to predict the IC50 values of 4 remaining compounds in a test (or validation) set. Ten analogues were proposed by a fragment search of a fragment library containing the pharmacophore model of the active compounds contained in the training set. The most active proposed analogue showed a predicted activity within the lower micromolar range.
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Affiliation(s)
- Joelleinsert Ngo Hanna
- Department of Chemistry, Faculty of Science, University of Buea, P. O. Box 63, Buea, Cameroon.,Department of Chemistry, Faculty of Science, University of Douala, P. O. Box 24157, Douala, Cameroon
| | | | - Fidele Ntie-Kang
- Department of Chemistry, Faculty of Science, University of Buea, P. O. Box 63, Buea, Cameroon.,Department of Pharmaceutical Chemistry, Martin-Luther University of Halle-Wittenberg, Kurt-Mothes-Str. 3, 06120, Halle (Saale), Germany.,Institute of Botany, Technical University University Dresden, Zellescher Weg 20b, 01062, Dresden, Germany
| | - James A Mbah
- Department of Chemistry, Faculty of Science, University of Buea, P. O. Box 63, Buea, Cameroon
| | - Flavien A A Toze
- Department of Chemistry, Faculty of Science, University of Douala, P. O. Box 24157, Douala, Cameroon
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Atioğlu Z, Akkurt M, Shikhaliyev NQ, Mukhtarova SH, Suleymanova GT, Toze FAA. Crystal structure and Hirshfeld surface analysis of 4-{2,2-di-chloro-1-[( E)-(4-chloro-phen-yl)diazen-yl]ethen-yl}- N, N-di-methyl-aniline. Acta Crystallogr E Crystallogr Commun 2020; 76:1033-1037. [PMID: 32695447 PMCID: PMC7336775 DOI: 10.1107/s2056989020007549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 06/04/2020] [Indexed: 03/30/2024]
Abstract
The title compound, C16H14Cl3N3, comprises three mol-ecules of similar shape in the asymmetric unit. The crystal cohesion is ensured by inter-molecular C-H⋯N and C-H⋯Cl hydrogen bonds in addition to C-Cl⋯π inter-actions. Hirshfeld surface analysis and two-dimensional fingerprint plots reveal that Cl⋯H/H⋯Cl (33.6%), H⋯H (27.9%) and C⋯H/H⋯C (17.6%) are the most important contributors towards the crystal packing.
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Affiliation(s)
- Zeliha Atioğlu
- İlke Education and Health Foundation, Cappadocia University, Cappadocia Vocational College, The Medical Imaging Techniques Program, 50420 Mustafapaşa, Ürgüp, Nevşehir, Turkey
| | - Mehmet Akkurt
- Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
| | - Namiq Q. Shikhaliyev
- Organic Chemistry Department, Baku State University, Z. Khalilov str. 23, AZ 1148 Baku, Azerbaijan
| | - Sevinc H. Mukhtarova
- Organic Chemistry Department, Baku State University, Z. Khalilov str. 23, AZ 1148 Baku, Azerbaijan
| | - Gulnar T. Suleymanova
- Organic Chemistry Department, Baku State University, Z. Khalilov str. 23, AZ 1148 Baku, Azerbaijan
| | - Flavien A. A. Toze
- Department of Chemistry, Faculty of Sciences, University of Douala, PO Box 24157, Douala, Republic of , Cameroon
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Akkurt M, Shikhaliyev NQ, Askerova UF, Mukhtarova SH, Mammadova GZ, Toze FAA. Crystal structure and Hirshfeld surface analysis of ( E)-4-{[2,2-di-chloro-1-(4-meth-oxy-phen-yl)ethen-yl]diazen-yl}benzo-nitrile. Acta Crystallogr E Crystallogr Commun 2019; 75:1190-1194. [PMID: 31417790 PMCID: PMC6690439 DOI: 10.1107/s2056989019009642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 07/05/2019] [Indexed: 11/11/2022]
Abstract
In the title compound, C16H11Cl2N3O, the 4-meth-oxy-substituted benzene ring makes a dihedral angle of 41.86 (9)° with the benzene ring of the benzo-nitrile group. In the crystal, mol-ecules are linked into layers parallel to (020) by C-H⋯O contacts and face-to-face π-π stacking inter-actions [centroid-centroid distances = 3.9116 (14) and 3.9118 (14) Å] between symmetry-related aromatic rings along the a-axis direction. A Hirshfeld surface analysis indicates that the most important contributions to the crystal packing are from Cl⋯H/H⋯Cl (22.8%), H⋯H (21.4%), N⋯H/H⋯N (16.1%), C⋯H/H⋯C (14.7%) and C⋯C (9.1%) inter-actions.
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Affiliation(s)
- Mehmet Akkurt
- Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
| | - Namiq Q. Shikhaliyev
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
| | - Ulviyya F. Askerova
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
| | - Sevinc H. Mukhtarova
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
| | - Gunay Z. Mammadova
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
| | - Flavien A. A. Toze
- Department of Chemistry, Faculty of Sciences, University of Douala, PO Box 24157, Douala, Republic of Cameroon
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Akkurt M, Shikhaliyev NQ, Suleymanova GT, Babayeva GV, Mammadova GZ, Niyazova AA, Shikhaliyeva IM, Toze FAA. Crystal structures and Hirshfeld surface analyses of the two isotypic compounds ( E)-1-(4-bromo-phen-yl)-2-[2,2-di-chloro-1-(4-nitro-phen-yl)ethen-yl]diazene and ( E)-1-(4-chloro-phen-yl)-2-[2,2-di-chloro-1-(4-nitro-phen-yl)ethen-yl]diazene. Acta Crystallogr E Crystallogr Commun 2019; 75:1199-1204. [PMID: 31417792 PMCID: PMC6690453 DOI: 10.1107/s2056989019010004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 07/12/2019] [Indexed: 11/10/2022]
Abstract
In the two isotypic title compounds, C14H8BrCl2N3O2, (I), and C14H8Cl3N3O2, (II), the substitution of one of the phenyl rings is different [Br for (I) and Cl for (II)]. Aromatic rings form dihedral angles of 60.9 (2) and 64.1 (2)°, respectively. Mol-ecules are linked through weak X⋯Cl contacts [X = Br for (I) and Cl for (II)], C-H⋯Cl and C-Cl⋯π inter-actions into sheets parallel to the ab plane. Additional van der Waals inter-actions consolidate the three-dimensional packing. Hirshfeld surface analysis of the crystal structures indicates that the most important contributions for the crystal packing for (I) are from C⋯H/H⋯C (16.1%), O⋯H/H⋯O (13.1%), Cl⋯H/H⋯Cl (12.7%), H⋯H (11.4%), Br⋯H/H⋯Br (8.9%), N⋯H/H⋯N (6.9%) and Cl⋯C/C⋯Cl (6.6%) inter-actions, and for (II), from Cl⋯H / H⋯Cl (21.9%), C⋯H/H⋯C (15.3%), O⋯H/H⋯O (13.4%), H⋯H (11.5%), Cl⋯C/C⋯Cl (8.3%), N⋯H/H⋯N (7.0%) and Cl⋯Cl (5.9%) inter-actions. The crystal of (I) studied was refined as an inversion twin, the ratio of components being 0.9917 (12):0.0083 (12).
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Affiliation(s)
- Mehmet Akkurt
- Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
| | - Namiq Q. Shikhaliyev
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
| | - Gulnar T. Suleymanova
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
| | - Gulnare V. Babayeva
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
| | - Gunay Z. Mammadova
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
| | - Ayten A. Niyazova
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
| | - Irada M. Shikhaliyeva
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
| | - Flavien A. A. Toze
- Department of Chemistry, Faculty of Sciences, University of Douala, PO Box 24157, Douala, Republic of , Cameroon
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Akkurt M, Shikhaliyev NQ, Askerova UF, Mukhtarova SH, Mammadova GZ, Toze FAA. (1 Z,2 Z)-1,2-Bis{2-[3,5-bis(trifluoromethyl)phenyl]hydrazinylidene}-1,2-bis(4-methoxyphenyl)ethane including an unknown solvate. IUCr Data 2019. [DOI: 10.1107/s2414314619010101] [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
The complete molecule of the title compound, C32H22F12N4O2, is generated by a crystallographic twofold axis aligned parallel to [010]. The F atoms of one of the CF3 groups are disordered over three orientations in a 0.6: 0.2: 0.2 ratio. In the crystal, molecules are linked by N—H...O hydrogen bonds, forming zigzag chains propagating along the a-axis direction. In addition, weak C—H...O and C—H...F bonds are observed. The contribution of the disordered solvent to the scattering was removed using the SQUEEZE routine [Spek (2015). Acta Cryst. C71, 9–18] of PLATON. The solvent contribution is not included in the reported molecular weight and density.
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Khalilov AN, Atioğlu Z, Akkurt M, Duruskari GS, Toze FAA, Huseynova AT. Crystal structure and Hirshfeld surface analysis of ( E)-3-[(4-fluoro-benzyl-idene)amino]-5-phenyl-thia-zolidin-2-iminium bromide. Acta Crystallogr E Crystallogr Commun 2019; 75:662-666. [PMID: 31110807 PMCID: PMC6505598 DOI: 10.1107/s2056989019004973] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 04/11/2019] [Indexed: 11/13/2022]
Abstract
In the cation of the title salt, C16H15FN3S+·Br-, the phenyl ring is disordered over two sets of sites with a refined occupancy ratio of 0.503 (4):0.497 (4). The mean plane of the thia-zolidine ring makes dihedral angles of 13.51 (14), 48.6 (3) and 76.5 (3)° with the fluoro-phenyl ring and the major- and minor-disorder components of the phenyl ring, respectively. The central thia-zolidine ring adopts an envelope conformation. In the crystal, centrosymmetrically related cations and anions are linked into dimeric units via N-H⋯Br hydrogen bonds, which are further connected by weak C-H⋯Br hydrogen bonds into chains parallel to [110]. Hirshfeld surface analysis and two-dimensional fingerprint plots indicate that the most important contributions to the crystal packing are from H⋯H (44.3%), Br⋯H/H⋯Br (16.8%), C⋯H/H⋯C (13.9%), F⋯H/H⋯F (10.3%) and S⋯H/H⋯S (3.8%) inter-actions.
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Affiliation(s)
- Ali N. Khalilov
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az 1148, Baku, Azerbaijan
- Department of Physics and Chemistry, "Composite Materials" Scientific Research Center, Azerbaijan State Economic University (UNEC), H. Aliyev str. 135, Az 1063, Baku, Azerbaijan
| | - Zeliha Atioğlu
- İlke Education and Health Foundation, Cappadocia University, Cappadocia Vocational College, The Medical Imaging Techniques Program, 50420 Mustafapaşa, Ürgüp, Nevşehir, Turkey
| | - Mehmet Akkurt
- Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
| | - Gulnara Sh. Duruskari
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az 1148, Baku, Azerbaijan
| | - Flavien A. A. Toze
- Department of Chemistry, Faculty of Sciences, University of Douala, PO Box 24157, Douala, Republic of Cameroon
| | - Afet T. Huseynova
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az 1148, Baku, Azerbaijan
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Alekseeva KA, Raspertov PV, Çelikesir ST, Akkurt M, Toze FAA, Sorokina EA. Crystal structure and Hirshfeld surface analysis of dimethyl (1 R*,3a S*,3a 1 R*,6a S*,9 R*,9a S*)-3a 1,5,6,9a-tetra-hydro-1 H,4 H,9 H-1,3a:6a,9-di-epoxy-phenalene-2,3-di-carboxyl-ate. Acta Crystallogr E Crystallogr Commun 2019; 75:460-464. [PMID: 31161057 PMCID: PMC6509682 DOI: 10.1107/s2056989019003499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 03/12/2019] [Indexed: 11/10/2022]
Abstract
The title di-epoxy-phenalene derivative, C17H18O6, comprises a fused cyclic system containing four five-membered rings (two di-hydro-furan and two tetra-hydro-furan) and one six-membered ring (cyclo-hexa-ne). The five-membered di-hydro-furan and tetra-hydro-furan rings adopt envelope conformations, and the six-membered cyclo-hexane ring adopts a distorted chair conformation. Two methyl carboxyl-ate groups occupy adjacent positions (2- and 3-) on a tetra-hydro-furan ring. In the crystal, two pairs of C-H⋯O hydrogen bonds link the mol-ecules to form inversion dimers, enclosing two R 2 2(6) ring motifs, that stack along the a-axis direction and are arranged in layers parallel to the bc plane.
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Affiliation(s)
- Kseniia A. Alekseeva
- Organic Chemistry Department, Faculty of Science, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
| | - Pavel V. Raspertov
- Organic Chemistry Department, Faculty of Science, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
| | | | - Mehmet Akkurt
- Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
| | - Flavien A. A. Toze
- Department of Chemistry, Faculty of Sciences, University of Douala, PO Box 24157, Douala, Republic of Cameroon
| | - Elena A. Sorokina
- Organic Chemistry Department, Faculty of Science, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
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Shikhaliyev NQ, Çelikesir ST, Akkurt M, Bagirova KN, Suleymanova GT, Toze FAA. Crystal structure and Hirshfeld surface analysis of ( E)-1-(4-chloro-phen-yl)-2-[2,2-di-chloro-1-(4-fluoro-phen-yl)ethen-yl]diazene. Acta Crystallogr E Crystallogr Commun 2019; 75:465-469. [PMID: 31161058 PMCID: PMC6509676 DOI: 10.1107/s2056989019003657] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 03/15/2019] [Indexed: 10/12/2023]
Abstract
In the title compound, C14H8Cl3FN2, the planes of the 4-fluoro-phenyl ring and the 4-chloro-phenyl ring make a dihedral angle of 56.13 (13)°. In the crystal, mol-ecules are stacked in a column along the a axis via a weak C-H⋯Cl hydrogen bond and face-to-face π-π stacking inter-actions [centroid-centroid distances = 3.8615 (18) and 3.8619 (18) Å]. The crystal packing is further stabilized by short Cl⋯Cl contacts. The Hirshfeld surface analysis of the crystal structure indicates that the most important contributions for the crystal packing are from Cl⋯H/H⋯Cl (31.2%), H⋯H (14.8%), C⋯H/H⋯C (14.0%), F⋯H/H⋯F (12.8%), C⋯C (9.0%) and Cl⋯Cl (6.7%) inter-actions.
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Affiliation(s)
- Namiq Q. Shikhaliyev
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
| | | | - Mehmet Akkurt
- Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
| | - Khanim N. Bagirova
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
| | - Gulnar T. Suleymanova
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
| | - Flavien A. A. Toze
- Department of Chemistry, Faculty of Sciences, University of Douala, PO Box 24157, Douala, Republic of Cameroon
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Polyanskii KB, Alekseeva KA, Kumandin PA, Atioğlu Z, Akkurt M, Toze FAA. Crystal structure of [1,3-bis-(2,4,6-tri-methyl-phen-yl)imidazolidin-2-yl-idene]di-chlorido-{2-[1-(di-methyl-amino)-eth-yl]benzyl-idene}ruthenium including an unknown solvate. Acta Crystallogr E Crystallogr Commun 2019; 75:342-345. [PMID: 30867945 PMCID: PMC6399687 DOI: 10.1107/s2056989019001725] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 01/30/2019] [Indexed: 11/11/2022]
Abstract
The title compound, [RuCl2(C21H26N2)(C11H15N)], is an example of a new generation of N,N-dialkyl metallocomplex ruthenium catalysts with an N→Ru coordination bond as part of a six-membered chelate ring. The Ru atom has an Addison τ parameter of 0.234, which indicates a geometry inter-mediate between square-based pyramidal and trigonal-bipyramidal. The complex shows the usual trans arrangement of the two chloride ligands, with Ru-Cl bond lengths of 2.3397 (8) and 2.3476 (8) Å, and a Cl-Ru- Cl angle of 157.47 (3)°. The crystal structure features C-H⋯Cl, C-H⋯π and π-π stacking inter-actions. The solvent mol-ecules were found to be highly disordered and their contribution to the scattering was removed with the SQUEEZE procedure in PLATON [Spek (2015). Acta Cryst. C71, 9-18], which indicated a solvent cavity of volume 1096 Å3 containing approximately 419 electrons. These solvent mol-ecules are not considered in the given chemical formula and other crystal data.
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Affiliation(s)
- Kirill B Polyanskii
- Organic Chemistry Department, Faculty of Science, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
| | - Kseniia A Alekseeva
- Organic Chemistry Department, Faculty of Science, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
| | - Pavel A Kumandin
- Organic Chemistry Department, Faculty of Science, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
| | - Zeliha Atioğlu
- İlke Education and Health Foundation, Cappadocia University, Cappadocia Vocational College, The Medical Imaging Techniques Program, 50420 Mustafapaşa, Ürgüp, Nevşehir, Turkey
| | - Mehmet Akkurt
- Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
| | - Flavien A A Toze
- Department of Chemistry, Faculty of Sciences, University of Douala, PO Box 24157, Douala, Republic of Cameroon
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10
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Atioğlu Z, Akkurt M, Shikhaliyev NQ, Suleymanova GT, Bagirova KN, Toze FAA. Crystal structure and Hirshfeld surface analysis of ( E)-1-[2,2-di-chloro-1-(4-nitro-phen-yl)ethen-yl]-2-(4-fluoro-phen-yl)diazene. Acta Crystallogr E Crystallogr Commun 2019; 75:237-241. [PMID: 30800458 PMCID: PMC6362658 DOI: 10.1107/s2056989019000707] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 01/15/2019] [Indexed: 11/10/2022]
Abstract
In the title compound, C14H8Cl2FN3O2, the 4-fluoro-phenyl ring and the nitro-substituted benzene ring form a dihedral angle of 63.29 (8)°. In the crystal, mol-ecules are linked by C-H⋯O hydrogen bonds into chains running parallel to the c axis. The crystal packing is further stabilized by C-Cl⋯π, C-F⋯π and N-O⋯π inter-actions. The Hirshfeld surface analysis of the crystal structure indicates that the most important contributions to the crystal packing are from H⋯O/O⋯H (15.5%), H⋯H (15.3%), Cl⋯H/H⋯Cl (13.8%), C⋯H/H⋯C (9.5%) and F⋯H/H⋯F (8.2%) inter-actions.
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Affiliation(s)
- Zeliha Atioğlu
- İlke Education and Health Foundation, Cappadocia University, Cappadocia Vocational College, The Medical Imaging Techniques Program, 50420 Mustafapaşa, Ürgüp, Nevşehir, Turkey
| | - Mehmet Akkurt
- Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
| | - Namiq Q. Shikhaliyev
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
| | - Gulnar T. Suleymanova
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
| | - Khanim N. Bagirova
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
| | - Flavien A. A. Toze
- Department of Chemistry, Faculty of Sciences, University of Douala, PO Box 24157, Douala, Republic of Cameroon
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Atioğlu Z, Akkurt M, Toze FAA, Dorovatovskii PV, Guliyeva NA, Panahova HM. Crystal structure and Hirshfeld surface analysis of dimethyl (3a S,6 R,6a S,7 S)-2-(2,2,2-tri-fluoro-acet-yl)-2,3-di-hydro-1 H,6 H,7 H-3a,6:7,9a-di-epoxy-benzo[ de]iso-quinoline-3a 1,6a-di-carboxyl-ate. Acta Crystallogr E Crystallogr Commun 2018; 74:1599-1604. [PMID: 30443389 PMCID: PMC6218921 DOI: 10.1107/s2056989018014305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 10/10/2018] [Indexed: 11/12/2022]
Abstract
The title mol-ecule, C18H16F3NO7, comprises a fused cyclic system containing four five-membered (two di-hydro-furan and two tetra-hydro-furan) rings and one six-membered (piperidine) ring. The five-membered di-hydro-furan and tetra-hydro-furan rings adopt envelope conformations, and the six-membered piperidine ring adopts a distorted chair conformation. Intra-molecular O⋯F inter-actions help to stabilize the conformational arrangement. In the crystal structure, mol-ecules are linked by weak C-H⋯O and C-H⋯F hydrogen bonds, forming a three-dimensional network. The Hirshfeld surface analysis confirms the dominant role of H⋯H contacts in establishing the packing.
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Affiliation(s)
- Zeliha Atioğlu
- İlke Education and Health Foundation, Cappadocia University, Cappadocia Vocational College, The Medical Imaging Techniques Program, 50420 Mustafapaşa, Ürgüp, Nevşehir, Turkey
| | - Mehmet Akkurt
- Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
| | - Flavien A. A. Toze
- Department of Chemistry, Faculty of Sciences, University of Douala, PO Box 24157, Douala, Republic of Cameroon
| | | | - Narmina A. Guliyeva
- Organic Chemistry Department, Baku State University, Z. Xalilov Str. 23, Az 1148, Baku, Azerbaijan
| | - Humay M. Panahova
- State Economic University of Azerbaijan, Istiqlaliyyat st., 6., AZ1001, Baku, Azerbaijan
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Toze FAA, Nadirova MA, Mertsalov DF, Sokolova JS, Dorovatovskii PV, Khrustalev VN. IMDAV reaction between phenyl-maleic anhydride and thien-yl(fur-yl)allyl-amines: synthesis and mol-ecular structure of (3a SR,4 RS,4a RS,7a SR)-5-oxothieno- and (3a SR,4 SR,4a RS,7a SR)-5-oxofuro[2,3- f]iso-indole-4-carb-oxy-lic acids. Acta Crystallogr E Crystallogr Commun 2018; 74:1400-1404. [PMID: 30319788 PMCID: PMC6176451 DOI: 10.1107/s2056989018012239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 08/28/2018] [Indexed: 11/13/2022]
Abstract
The title compounds C24H21NO3S, I, and C24H21NO4, II, are the products of the IMDAV reaction between phenyl-maleic anhydride and thien-yl(fur-yl)allyl-amines. Their mol-ecular structures comprise fused tricyclic systems containing thio-phene, cyclo-hexene and pyrrolidine rings (I) or furan, cyclo-hexene and pyrrolidine rings (II). The central cyclo-hexene and pyrrolidine rings in both compounds adopt slightly twisted boat and envelope conformations, respectively. The dihedral angles between the basal plane of the pyrrolidine ring and the thio-phene (in I) or furan (in II) ring plane are 22.74 (16) and 26.29 (5)°, respectively. The nitro-gen atom both in I and II has practically planar environment [the sums of the bond angles are 359.8 and 358.9°, respectively]. In the crystal of I, the mol-ecules form hydrogen-bonded zigzag chains along [010] through strong inter-molecular O-H⋯O hydrogen bonds involving carb-oxy-lic and keto groups, whereas in the crystal of II, the mol-ecules are joined into centrosymmetric dimers by strong O-H⋯O hydrogen bonds between the carb-oxy-lic groups. In II, the atoms involved into these hydrogen bonds (and hence the whole carb-oxy-lic group) are disordered over two sets of sites with an occupancy ratio of 0.6:0.4. Compounds I and II crystallize as racemates consisting of enanti-omeric pairs of the 3aSR,4RS,4aRS,7aSR and 3aSR,4SR,4aRS,7aSR diastereomers, respectively.
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Affiliation(s)
- Flavien A. A. Toze
- Department of Chemistry, Faculty of Sciences, University of Douala, PO Box 24157, Douala, Republic of Cameroon
| | - Maryana A. Nadirova
- Organic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
| | - Dmitriy F. Mertsalov
- Organic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
| | - Julya S. Sokolova
- Organic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
| | - Pavel V. Dorovatovskii
- National Research Centre "Kurchatov Institute", 1 Acad. Kurchatov Sq., Moscow 123182, Russian Federation
| | - Victor N. Khrustalev
- National Research Centre "Kurchatov Institute", 1 Acad. Kurchatov Sq., Moscow 123182, Russian Federation
- Inorganic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
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Akkurt M, Maharramov AM, Duruskari GS, Toze FAA, Khalilov AN. Crystal structure and Hirshfeld surface analysis of ( E)-5-phenyl-3-[(pyridin-4-yl-methyl-idene)amino]-thia-zolidin-2-iminium bromide monohydrate. Acta Crystallogr E Crystallogr Commun 2018; 74:1290-1294. [PMID: 30225119 PMCID: PMC6127695 DOI: 10.1107/s2056989018011155] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 08/04/2018] [Indexed: 11/10/2022]
Abstract
In the cation of the title salt, C15H15N4S+·Br-·H2O, the central thia-zolidine ring adopts an envelope conformation with puckering parameters Q(2) = 0.279 (4) Å and φ(2) = 222.5 (9)°. The mean plane of the thia-zolidine ring makes dihedral angles of 12.4 (2) and 66.8 (3)° with the pyridine and phenyl rings, respectively. The pyridine ring in the title mol-ecule is essentially planar (r.m.s deviation = 0.005 Å). In the crystal, the cations, anions and water mol-ecules are linked into a three-dimensional network, which forms cross layers parallel to the (120) and (20) planes via O-H⋯Br, N-H⋯Br and N-H⋯N hydrogen bonds. C-H⋯π inter-actions also help in the stabilization of the mol-ecular packing. Hirshfeld surface analysis and 2D (two-dimensional) fingerprint plots indicate that the most important contributions to the crystal packing are from H⋯H (35.5%), C⋯H/H⋯C (23.9%), Br⋯H/H⋯Br (16.4%), N⋯H/H⋯N (10.6%) and S⋯H/H⋯S (7.9%) inter-actions.
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Affiliation(s)
- Mehmet Akkurt
- Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
| | - Abel M. Maharramov
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
| | - Gulnara Sh. Duruskari
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
| | - Flavien A. A. Toze
- Department of Chemistry, Faculty of Sciences, University of Douala, PO Box 24157, Douala, Republic of Cameroon
| | - Ali N. Khalilov
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
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Akkurt M, Duruskari GS, Toze FAA, Khalilov AN, Huseynova AT. Crystal structure and Hirshfeld surface analysis of ( E)-3-[(2,3-di-chloro-benzyl-idene)amino]-5-phenyl-thia-zolidin-2-iminium bromide. Acta Crystallogr E Crystallogr Commun 2018; 74:1168-1172. [PMID: 30116586 PMCID: PMC6072981 DOI: 10.1107/s2056989018010496] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 07/21/2018] [Indexed: 11/26/2022]
Abstract
In the cation of the title salt, C16H14Cl2N3S+·Br-, the central thia-zolidine ring adopts an envelope conformation. The phenyl ring is disordered over two sites with a refined occupancy ratio of 0.541 (9):0.459 (9). In the crystal, C-H⋯Br and N-H⋯Br hydrogen bonds link the components into a three-dimensional network with the cations and anions stacked along the b-axis direction. Weak C-H⋯π inter-actions, which only involve the minor disorder component of the ring, also contribute to the mol-ecular packing. In addition, there are also inversion-related Cl⋯Cl halogen bonds and C-Cl⋯π (ring) contacts. A Hirshfeld surface analysis was conducted to verify the contributions of the different inter-molecular inter-actions.
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Affiliation(s)
- Mehmet Akkurt
- Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
| | - Gulnara Sh. Duruskari
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
| | - Flavien A. A. Toze
- Department of Chemistry, Faculty of Sciences, University of Douala, PO Box 24157, Douala, Republic of Cameroon
| | - Ali N. Khalilov
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
| | - Afat T. Huseynova
- Organic Chemistry Department, Baku State University, Z. Xalilov str. 23, Az, 1148 Baku, Azerbaijan
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Zaytsev VP, Sorokina EA, Kvyatkovskaya EA, Toze FAA, Mhaldar SN, Dorovatovskii PV, Khrustalev VN. Three-component reaction between isatoic anhydride, amine and meth-yl-subs-tituted furyl-acryl-alde-hydes: crystal structures of 3-benzyl-2-[( E)-2-(5-methylfuran-2-yl)vin-yl]-2,3-di-hydro-quinazolin-4(1 H)-one, 3-benzyl-2-[( E)-2-(furan-2-yl)-1-methyl-vin-yl]-2,3-di-hydro-quinazolin-4(1 H)-one and 3-(furan-2-ylmeth-yl)-2-[( E)-2-(furan-2-yl)-1-methyl-vin-yl]-2,3-di-hydro-quinazolin-4(1 H)-one. Acta Crystallogr E Crystallogr Commun 2018; 74:1101-1106. [PMID: 30116571 PMCID: PMC6072988 DOI: 10.1107/s2056989018009982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 07/11/2018] [Indexed: 11/11/2022]
Abstract
Compounds (I), C22H20N2O2, (II), C22H20N2O2 and (III), C20H18N2O3 are the products of three-component reactions between isatoic anhydride, the corresponding amine and 3-(5-methylfuran-2-yl)- or (furan-2-yl)-2-methyl-acryl-aldehyde. Compound (I) crystallizes in the monoclinic space group P21/n, while compounds (II) and (III) are isostructural and crystallize in the ortho-rhom-bic space group Pbca. The tetra-hydro-pyrimidine ring in (I)-(III) adopts a sofa conformation. The NH nitro-gen atom has a trigonal-pyramidal geometry, whereas the N(R) nitro-gen atom is flattened. The furyl-vinyl substituents in (I)-(III) are practically planar and have an E configuration at the C=C double bond. In (I), this bulky fragment occupies the axial position at the quaternary carbon atom of the tetra-hydro-pyrimidine ring, whereas in (II) and (III) it is equatorially disposed. In the crystal of (I), mol-ecules form hydrogen-bonded chains propagating along [001] by strong inter-molecular N-H⋯O hydrogen bonds. The chains are packed in stacks along the a-axis direction. In the crystals of (II) and (III), mol-ecules also form hydrogen-bonded chains propagating along [100] by strong inter-molecular N-H⋯O hydrogen bonds. However, despite the fact that compounds (II) and (III) are isostructural, steric differences between the phenyl and furyl substituents result in chains with different geometries. Thus in the crystal of (II) the chains have a zigzag-like structure, whereas in the crystal of (III), they are almost linear. In both (II) and (III), the hydrogen-bonded chains are further packed in stacks along the b-axis direction.
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Affiliation(s)
- Vladimir P. Zaytsev
- Organic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
| | - Elena A. Sorokina
- Organic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
| | - Elisaveta A. Kvyatkovskaya
- Organic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
| | - Flavien A. A. Toze
- Department of Chemistry, Faculty of Sciences, University of Douala, PO Box 24157, Douala, Republic of , Cameroon
| | - Shashank N. Mhaldar
- Department of Chemistry, Goa University, Taleigao Plateau, Goa 403 206, India
| | - Pavel V. Dorovatovskii
- National Research Centre "Kurchatov Institute", 1 Acad. Kurchatov Sq., Moscow 123182, Russian Federation
| | - Victor N. Khrustalev
- National Research Centre "Kurchatov Institute", 1 Acad. Kurchatov Sq., Moscow 123182, Russian Federation
- Inorganic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
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16
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Atioğlu Z, Akkurt M, Toze FAA, Huseynov FE, Hajiyeva SF. Crystal structure and Hirshfeld surface analysis of ethane-1,2-diaminium 3-[2-(1,3-dioxo-1,3-di-phenyl-propan-2-yl-idene)hydrazin-yl]-5-nitro-2-oxido-benzene-sulfonate dihydrate. Acta Crystallogr E Crystallogr Commun 2018; 74:1021-1025. [PMID: 30002908 PMCID: PMC6038648 DOI: 10.1107/s2056989018009118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 06/22/2018] [Indexed: 11/10/2022]
Abstract
In the anion of the title hydrated salt, C2H10N22+·C21H13N3O8S2-·2H2O, the planes of the phenyl rings and the benzene ring of the 5-nitro-2-oxido-benzene-sulfonate group are inclined to one another by 44.42 (11), 56.87 (11) and 77.70 (12)°. In the crystal, the anions are linked to the cations and the water mol-ecules by N-H⋯O and O-H⋯O hydrogen bonds, forming a three-dimensional network. Furthermore, there are face-to-face π-π stacking inter-actions between the centroids of one phenyl ring and the benzene ring of the 5-nitro-2-oxido-benzene-sulfonate group [centroid-centroid distance = 3.8382 (13) Å and slippage = 1.841 Å]. A Hirshfeld surface analysis was conducted to verify the contributions of the different inter-molecular inter-actions.
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Affiliation(s)
- Zeliha Atioğlu
- İlke Education and Health Foundation, Cappadocia University, Cappadocia Vocational College, The Medical Imaging Techniques Program, 50420 Mustafapaşa, Ürgüp, Nevşehir, Turkey
| | - Mehmet Akkurt
- Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
| | - Flavien A. A. Toze
- Department of Chemistry, Faculty of Sciences, University of Douala, PO Box 24157, Douala, Republic of , Cameroon
| | - Fatali E. Huseynov
- Department of Ecology and Soil Sciences, Baku State University, Z. Xalilov Str. 23, Az 1148 Baku, Azerbaijan
| | - Sarvinaz F. Hajiyeva
- Organic Chemistry Department, Baku State University, Z. Xalilov Str. 23, Az 1148 Baku, Azerbaijan
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17
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Atioğlu Z, Akkurt M, Toze FAA, Mammadova GZ, Panahova HM. Crystal structure and Hirshfeld surface analysis of 3,3',3''-[(1,3,5-triazine-2,4,6-tri-yl)tris-(-oxy)]tris-(5,5-di-methyl-cyclo-hex-2-en-1-one). Acta Crystallogr E Crystallogr Commun 2018; 74:1035-1038. [PMID: 30002911 PMCID: PMC6038646 DOI: 10.1107/s2056989018009003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 06/20/2018] [Indexed: 11/28/2022]
Abstract
The three cyclo-hexenone rings of the title compound, C27H33N3O6, adopt slightly distorted envelope conformations, with the C atom bearing two methyl groups as the flap atom in each case. These cyclo-hexenone mean planes form dihedral angles of 87.41 (11), 70.73 (11) and 70.47 (11)° with the 1,3,5-triazine ring, while the dihedral angle between the cyclo-hexenone mean planes are 57.52 (12), 23.75 (12) and 53.21 (12)°. In the crystal, mol-ecules are linked via C-H⋯O hydrogen bonds, forming a three-dimensional network.
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Affiliation(s)
- Zeliha Atioğlu
- İlke Education and Health Foundation, Cappadocia University, Cappadocia Vocational College, The Medical Imaging Techniques Program, 50420 Mustafapaşa, Ürgüp, Nevşehir, Turkey
| | - Mehmet Akkurt
- Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
| | - Flavien A. A. Toze
- Department of Chemistry, Faculty of Sciences, University of Douala, PO Box 24157, Douala, Republic of Cameroon
| | - Gunay Z. Mammadova
- Organic Chemistry Department, Baku State University, Z. Xalilov Str. 23, Az 1148 Baku, Azerbaijan
| | - Humay M. Panahova
- State Economic University of Azerbaijan, Istiqlaliyyat St, 6, AZ1001, Baku, Azerbaijan
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18
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Toze FAA, Listratova AV, Voskressensky LG, Chernikova NY, Lobanov NN, Bilyachenko AN, Dorovatovskii PV. Design of new anti-Alzheimer drugs: ring-expansion synthesis and synchrotron X-ray diffraction study of dimethyl 4-ethyl-11-fluoro-1,4,5,6,7,8-hexa-hydro-azonino[5,6- b]indole-2,3-di-carboxyl-ate. Acta Crystallogr E Crystallogr Commun 2018; 74:298-301. [PMID: 29765710 PMCID: PMC5947790 DOI: 10.1107/s2056989018001329] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Accepted: 01/21/2018] [Indexed: 12/04/2022]
Abstract
The title compound, C20H23FN2O4, is the product of a ring-expansion reaction from a seven-membered fluorinated hexa-hydro-azepine to a nine-membered azonine. The nine-membered azonine ring of the mol-ecule adopts a chair-boat conformation. The C=C and C-N bond lengths [1.366 (3) and 1.407 (3) Å, respectively] indicate the presence of conjugation within the enamine CH2-C=C-N-CH2 fragment. The substituent planes at the C=C double bond of this fragment are twisted by 16.0 (3)° as a result of steric effects. The amine N(Et) N atom has a trigonal-pyramidal configuration (sum of the bond angles = 346.3°). The inter-planar angle between the two carboxyl-ate substituents is 60.39 (8)°. In the crystal, mol-ecules form zigzag chains along [010] by inter-molecular N-H⋯O hydrogen-bonding inter-actions, which are further packed in stacks toward [100]. The title azonino-indole might be considered as a candidate for the design of new Alzheimer drugs.
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Affiliation(s)
- Flavien A. A. Toze
- Department of Chemistry, Faculty of Sciences, University of Douala, PO Box 24157, Douala, Republic of , Cameroon
| | - Anna V. Listratova
- Organic Chemistry Department, Peoples’ Friendship University of Russia, 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
| | - Leonid G. Voskressensky
- Organic Chemistry Department, Peoples’ Friendship University of Russia, 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
| | - Natalia Yu. Chernikova
- Chemistry and Biology Department, Peoples’ Friendship University of Russia, 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
| | - Nikolai N. Lobanov
- Inorganic Chemistry Department, Peoples’ Friendship University of Russia, 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
| | - Alexey N. Bilyachenko
- Inorganic Chemistry Department, Peoples’ Friendship University of Russia, 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
| | - Pavel V. Dorovatovskii
- National Research Centre "Kurchatov Institute", 1 Acad. Kurchatov Sq., Moscow 123182, Russian Federation
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Toze FAA, Zaytsev VP, Chervyakova LV, Kvyatkovskaya EA, Dorovatovskii PV, Khrustalev VN. Crystal structure of 3-benzyl-2-[( E)-2-(furan-2-yl)ethen-yl]-2,3-di-hydro-quinazolin-4(1 H)-one and 3-benzyl-2-[( E)-2-(thio-phen-2-yl)ethen-yl]-2,3-di-hydro-quinazolin-4(1 H)-one from synchrotron X-ray diffraction. Acta Crystallogr E Crystallogr Commun 2018; 74:10-14. [PMID: 29416882 PMCID: PMC5778476 DOI: 10.1107/s2056989017017479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Accepted: 12/05/2017] [Indexed: 11/17/2022]
Abstract
The chiral title compounds, C21H18N2O2, (I), and C21H18N2OS, (II) - products of the three-component reaction between benzyl-amine, isatoic anhydride and furyl- or thienyl-acrolein - are isostructural and form isomorphous racemic crystals. The tetra-hydro-pyrimidine ring in (I) and (II) adopts a sofa conformation. The amino N atom has a trigonal-pyramidal geometry [sum of the bond angles is 347.0° for both (I) and (II)], whereas the amido N atom is flat [sum of the bond angles is 359.3° for both (I) and (II)]. The furyl- and thienylethenyl substituents in (I) and (II) are planar and the conformation about the bridging C=C bond is E. These bulky fragments occupy the axial position at the quaternary C atom of the tetra-hydro-pyrimidine ring, apparently, due to steric reasons. In the crystals, mol-ecules of (I) and (II) form hydrogen-bonded helicoidal chains propagating along [010] by strong inter-molecular N-H⋯O hydrogen bonds.
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Affiliation(s)
- Flavien A. A. Toze
- Department of Chemistry, Faculty of Sciences, University of Douala, PO Box 24157, Douala, Republic of Cameroon
| | - Vladimir P. Zaytsev
- Organic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
| | - Lala V. Chervyakova
- Organic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
| | - Elisaveta A. Kvyatkovskaya
- Organic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
| | - Pavel V. Dorovatovskii
- National Research Centre "Kurchatov Institute", 1 Acad. Kurchatov Sq., Moscow 123182, Russian Federation
| | - Victor N. Khrustalev
- Inorganic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
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Borisova KK, Toze FAA, Yagafarov NZ, Zubkov FI, Dorovatovskii PV, Zubavichus YV, Khrustalev VN. Crystal structures of (5 RS)-( Z)-4-[5-(furan-2-yl)-3-phenyl-4,5-di-hydro-1 H-pyrazol-1-yl]-4-oxobut-2-enoic acid and (5 RS)-( Z)-4-[5-(furan-2-yl)-3-(thio-phen-2-yl)-4,5-di-hydro-1 H-pyrazol-1-yl]-4-oxobut-2-enoic acid. Acta Crystallogr E Crystallogr Commun 2016; 72:1557-1561. [PMID: 27840707 PMCID: PMC5095832 DOI: 10.1107/s2056989016013992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 09/01/2016] [Indexed: 11/10/2022]
Abstract
The title compounds, C17H14N2O4 (I) and C15H12N2O4S (II), possess very similar mol-ecular geometries. In both mol-ecules, the central 1,3,5-tris-ubstituted di-hydro-pyrazole ring adopts an envelope conformation. The oxobutenoic acid fragment has an almost planar Z conformation [r.m.s. deviations of 0.049 and 0.022 Å, respectively, for (I) and (II)] which is determined by the both bond conjugation and the strong intra-molecular O-H⋯O hydrogen bond. The substituents in positions 1 and 3 of the di-hydro-pyrazole ring [oxobutenoic acid and phenyl in (I) and oxobutenoic acid and thienyl in (II)] are nearly coplanar with its basal plane [the corresponding dihedral angles are 6.14 (9) and 2.22 (11)° in (I) and 6.27 (12) and 3.91 (11)° in (II)]. The furyl ring plane is twisted relative to the basal plane of the di-hydro-pyrazole ring by 85.51 (8) and 88.30 (7)° in (I) and (II), respectively. In the crystal of (I), mol-ecules form zigzag hydrogen-bonded chains along [001] by C-H⋯O hydrogen bonds, which are further packed in stacks along [100]. Unlike (I), the crystal of (II) contains centrosymmetric hydrogen-bonded dimers formed by pairs of C-H⋯S hydrogen bonds, which are further linked by weak C-H⋯O hydrogen bonds into a three-dimensional framework.
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Affiliation(s)
- Kseniya K Borisova
- Organic Chemistry Department, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
| | - Flavien A A Toze
- Department of Chemistry, Faculty of Sciences, University of Douala, PO Box 24157, Douala, Republic of , Cameroon
| | - Nniyaz Z Yagafarov
- Organic Chemistry Department, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
| | - Fedor I Zubkov
- Organic Chemistry Department, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
| | - Pavel V Dorovatovskii
- National Research Centre "Kurchatov Institute", 1 Acad. Kurchatov Sq., Moscow 123182, Russian Federation
| | - Yan V Zubavichus
- National Research Centre "Kurchatov Institute", 1 Acad. Kurchatov Sq., Moscow 123182, Russian Federation
| | - Victor N Khrustalev
- Inorganic Chemistry Department, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St., Moscow 117198, Russian Federation; X-Ray Structural Centre, A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov St., B-334, Moscow 119991, Russian Federation
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Adjapmoh MFE, Toze FAA, Songue JL, Langat MK, Kapche GDWF, Hameed A, Lateef M, Shaiq MA, Mbaze LM, Wansi JD, Kamdem AFW. A New Ceramide and Biflavonoid from the Leaves of Parinari hypochrysea (Chrysobalanaceae). Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601100515] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A new ceramide and a new biflavonoid named parinaramide (1) and sparinaritin (2), respectively, have been isolated along with ten known compounds, kaempferol, quercetin, taxifolin, taxifolin-3- O-rhamnoside, lupeol, betulinic acid, ursolic acid, 2α-hydroxy-ursolic acid, 2,3-dihydroxy-1-(4-hydroxy-3,5-dimethoxyphenyl)-1-propanone, and sucrose, from the leaves of Parinari hypochrysea (Chrysobalanaceae). Structures were determined using 1D- and 2D-NMR, MS and by chemical analysis. The methanol extract of leaves, stem bark and roots of P. hypochrysea were screened for their antioxidant and lipoxygenase inhibition potential and found to be inactive.
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Affiliation(s)
- Martial F. E. Adjapmoh
- Department of Chemistry, Faculty of Science, University of Douala, P.O. Box: 24157 Douala, Cameroon
- H.E.J. Research Institute of Chemistry, University of Karachi, 75270, Karachi, Pakistan
| | - Flavien A. A. Toze
- Department of Chemistry, Faculty of Science, University of Douala, P.O. Box: 24157 Douala, Cameroon
| | - Jules L. Songue
- Department of Chemistry, Faculty of Science, University of Douala, P.O. Box: 24157 Douala, Cameroon
| | - Moses K. Langat
- Natural Products Research Group, Department of Chemistry, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, GU2 7XH, United Kingdom
| | - Gilbert D. W. F. Kapche
- Department of Chemistry, Higher Teachers’ Training College, University of Yaoundé I, P.O. Box 47 Yaoundé, Cameroon
| | - Abdul Hameed
- H.E.J. Research Institute of Chemistry, University of Karachi, 75270, Karachi, Pakistan
| | - Mehreen Lateef
- Pharmaceutical Research Center, Pakistan Council of Scientific & Industrial Research Complex, Karachi, Pakistan
| | - Muhammad A. Shaiq
- H.E.J. Research Institute of Chemistry, University of Karachi, 75270, Karachi, Pakistan
| | - Luc M. Mbaze
- Department of Chemistry, Faculty of Science, University of Douala, P.O. Box: 24157 Douala, Cameroon
| | - Jean D. Wansi
- Department of Chemistry, Faculty of Science, University of Douala, P.O. Box: 24157 Douala, Cameroon
| | - Alain F. W. Kamdem
- Department of Chemistry, Faculty of Science, University of Douala, P.O. Box: 24157 Douala, Cameroon
- Natural Products Research Group, Department of Chemistry, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, GU2 7XH, United Kingdom
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Adjapmoh MFE, Toze FAA, Songue JL, Langat MK, Kapche GDWF, Hameed A, Lateef M, Shaiq MA, Mbaze LM, Wansi JD, Kamdem AFW. A New Ceramide and Biflavonoid from the Leaves of Parinari hypochrysea (Chrysobalanaceae). Nat Prod Commun 2016; 11:615-620. [PMID: 27319132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023] Open
Abstract
A new ceramide and a new biflavonoid named parinaramide (1) and sparinaritin (2), respectively, have been isolated along with ten known compounds, kaempferol, quercetin, taxifolin, taxifolin-3-O-rhamnoside, lupeol, betulinic acid, ursolic acid, 2α-hydroxy-ursolic acid, 2,3-dihydroxy-1-(4-hydroxy-3,5-dimethoxyphenyl)-1-propanone, and sucrose, from the leaves of Parinari hypochrysea (Chrysobalanaceae). Structures were determined using 1D- and 2D-NMR, MS and by chemical analysis. The methanol extract of leaves, stem bark and roots of P. hypochrysea were screened for their antioxidant and lipoxygenase inhibition potential and found to be inactive.
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Toze FAA, Poplevin DS, Zubkov FI, Nikitina EV, Porras C, Khrustalev VN. Crystal structure of methyl (3RS,4SR,4aRS,11aRS,11bSR)-5-oxo-3,4,4a,5,7,8,9,10,11,11a-deca-hydro-3,11b-ep-oxy-azepino[2,1-a]iso-indole-4-carboxyl-ate. Acta Crystallogr E Crystallogr Commun 2015; 71:o729-30. [PMID: 26594446 PMCID: PMC4647423 DOI: 10.1107/s2056989015016679] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 09/07/2015] [Indexed: 11/10/2022]
Abstract
The title compound, C15H19NO4, is the a product of the esterification of the corresponding carbonic acid with methanol. The molecule comprises a fused tetracyclic system containing three five-membered rings (2-pyrrolidinone, tetrahydrofuran and dihydrofuran) and one seven-membered ring (azepane). The five-membered rings have the usual envelope conformations, with the quaternary C atom being the flap atom for the 2-pyrrolidinone ring, and the ether O atom being the common flap atom for the remaining rings. The seven-membered azepane ring adopts a chair conformation with the methine and middle methylene C atoms lying above and below the mean plane defined by the remaining five atoms. The carboxylate substituent is rotated by 77.56 (5)° with respect to the base plane of the tetrahydrofuran ring. In the crystal, the molecules are bound by weak C—H⋯O hydrogen-bonding interactions into puckered layers parallel to (001).
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Affiliation(s)
- Flavien A A Toze
- Department of Chemistry, University of Douala, Faculty of Sciences, PO Box 24157, Douala, Republic of Cameroon
| | - Dmitry S Poplevin
- Department of Organic Chemistry, Peoples' Friendship University of Russia, 6 Miklukho-Maklay St, Moscow 117198, Russian Federation
| | - Fedor I Zubkov
- Department of Organic Chemistry, Peoples' Friendship University of Russia, 6 Miklukho-Maklay St, Moscow 117198, Russian Federation
| | - Eugeniya V Nikitina
- Department of Organic Chemistry, Peoples' Friendship University of Russia, 6 Miklukho-Maklay St, Moscow 117198, Russian Federation
| | - Ciara Porras
- Department of Chemistry & Biology, New Mexico Highlands University, 803 University Ave, Las Vegas, NM 87701, USA
| | - Victor N Khrustalev
- Department of Chemistry & Biology, New Mexico Highlands University, 803 University Ave, Las Vegas, NM 87701, USA ; Department of Inorganic Chemistry, Peoples' Friendship University of Russia, 6 Miklukho-Maklay St, Moscow 117198, Russian Federation
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Toze FAA, Nikitina EV, Zaytsev VP, Zubkov FI, Khrustalev VN. rac-Methyl (3aR*,4S*,5R*,7aR*)-5,7a-bis-(acet-yloxy)-3-oxo-2-phenyl-octa-hydro-1H-iso-indole-4-carboxyl-ate. Acta Crystallogr Sect E Struct Rep Online 2013; 69:o1555. [PMID: 24098237 PMCID: PMC3790418 DOI: 10.1107/s1600536813025129] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 09/10/2013] [Indexed: 06/02/2023]
Abstract
The title molecule, C20H23NO7, the product of nucleophilic cleavage of the 3a,6-ep-oxy bridge in 1-oxo-2-phenyl-octa-hydro-3a,6-ep-oxy-iso-indole-7-carboxyl-ate, comprises a cis-fused bicyclic system containing a 2-pyrrolidinone ring in an envelope conformation (with the C atom bearing the carboxyl-ate substituent as the flap) and a cyclo-hexane ring in a chair conformation. The carboxyl-ate substituent occupies the equatorial position, whereas the two acet-yloxy substituents are in axial positions. The N atom has a trigonal-planar geometry, the sum of the bond angles being 359.3 (3)°. The dihedral angle between the mean plane of the four planar atoms of the pyrrolidinone ring and the phenyl ring is 25.98 (6)°. In the crystal, mol-ecules are linked into zigzag chains along the c-axis direction by C-H⋯O hydrogen bonds.
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Affiliation(s)
- Flavien A. A. Toze
- Department of Chemistry, University of Douala, Faculty of Sciences, PO Box 24157, Douala, Republic of , Cameroon
| | - Eugeniya V. Nikitina
- Organic Chemistry Department, Peoples’ Friendship University of Russia, Miklukho-Maklaya St. 6, Moscow, 117198, Russian Federation
| | - Vladimir P. Zaytsev
- Organic Chemistry Department, Peoples’ Friendship University of Russia, Miklukho-Maklaya St. 6, Moscow, 117198, Russian Federation
| | - Fedor I. Zubkov
- Organic Chemistry Department, Peoples’ Friendship University of Russia, Miklukho-Maklaya St. 6, Moscow, 117198, Russian Federation
| | - Victor N. Khrustalev
- X-Ray Structural Centre, A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov St, B-334, Moscow 119991, Russian Federation
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Zaytsev VP, Zubkov FI, Toze FAA, Orlova DN, Eliseeva MN, Grudinin DG, Nikitina EV, Varlamov AV. 5-Amido- and 5-Amino-Substituted Epoxyisoindolo[2,1-a]tetrahydroquinolines and 10-Carboxylic Acids: Their Synthesis and Reactivity. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1024] [Citation(s) in RCA: 5] [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: 11/09/2022]
Affiliation(s)
- Vladimir P. Zaytsev
- Department of Organic Chemistry; Peoples' Friendship University of Russia; 6 Miklukho-Maklaya St.; Moscow 117198; Russian Federation
| | - Fedor I. Zubkov
- Department of Organic Chemistry; Peoples' Friendship University of Russia; 6 Miklukho-Maklaya St.; Moscow 117198; Russian Federation
| | - Flavien A. A. Toze
- Department of Chemistry; University of Douala, Faculty of Sciences; PO Box 24157; Douala; Cameroon
| | - Daria N. Orlova
- Department of Organic Chemistry; Peoples' Friendship University of Russia; 6 Miklukho-Maklaya St.; Moscow 117198; Russian Federation
| | - Maria N. Eliseeva
- Department of Organic Chemistry; Peoples' Friendship University of Russia; 6 Miklukho-Maklaya St.; Moscow 117198; Russian Federation
| | | | - Eugeniya V. Nikitina
- Department of Organic Chemistry; Peoples' Friendship University of Russia; 6 Miklukho-Maklaya St.; Moscow 117198; Russian Federation
| | - Alexey V. Varlamov
- Department of Organic Chemistry; Peoples' Friendship University of Russia; 6 Miklukho-Maklaya St.; Moscow 117198; Russian Federation
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Toze FAA, Airiyan IK, Nikitina EV, Sorokina EA, Khrustalev VN. Methyl (9aR*,10S*,11R*,13aS*,13bS*)-9-oxo-6,7,9,9a,10,11-hexa-hydro-5H,13bH-11,13a-ep-oxy-pyrrolo-[2',1':3,4][1,4]diazepino[2,1-a]isoindole-10-carboxyl-ate. Acta Crystallogr Sect E Struct Rep Online 2012; 67:o2852-3. [PMID: 22219895 PMCID: PMC3247590 DOI: 10.1107/s1600536811040360] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Accepted: 09/30/2011] [Indexed: 11/10/2022]
Abstract
The title compound, C(17)H(18)N(2)O(4), is the methyl ester of the adduct of intra-molecular Diels-Alder reaction between maleic anhydride and 1-(2-fur-yl)-2,3,4,5-tetra-hydro-1H-pyrrolo-[1,2-a][1,4]diazepine. The mol-ecule comprises a fused penta-cyclic system containing four five-membered rings (viz. pyrrole, 2-pyrrolidinone, tetra-hydro-furan and dihydro-furan) and one seven-membered ring (1,4-diazepane). The pyrrole ring is approximately planar (r.m.s. deviation = 0.003 Å) while the 2-pyrrolidinone, tetra-hydro-furan and dihydro-furan five-membered rings have the usual envelope conformations. The central seven-membered diazepane ring adopts a boat conformation. In the crystal, mol-ecules are bound by weak inter-molecular C-H⋯O hydrogen-bonding inter-actions into zigzag chains propagating in [010]. In the crystal packing, the chains are stacked along the a axis.
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Toze FAA, Ershova JD, Obushak MD, Zubkov FI, Khrustalev VN. 8a-Methyl-5,6,8,8a,9,10-hexa-hydro-10,12a-epoxy-isoindolo[1,2-a]isoquinolinium iodide. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o1388-9. [PMID: 21579469 PMCID: PMC2979642 DOI: 10.1107/s1600536810017903] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2010] [Accepted: 05/14/2010] [Indexed: 11/10/2022]
Abstract
The title compound, C(17)H(18)NO(+)·I(-), is an adduct resulting from an intra-molecular Diels-Alder reaction of methallyl chloride with 3,4-dihydro-1-furylisoquinoline. The cation comprises a fused penta-cyclic system containing three five-membered rings (dihydro-pyrrole, dihydro-furan and tetra-hydro-furan) and two six-membered rings (tetra-hydro-pyridine and benzene). The five-membered rings have the usual envelope conformations, and the central six-membered tetra-hydro-pyridine ring adopts the unsymmetrical half-boat conformation. In the crystal, cations and iodide anions are bound by weak inter-molecular hydrogen-bonding inter-actions into a three-dimensional framework.
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Affiliation(s)
- Flavien A. A. Toze
- Department of Chemistry, University of Douala, Faculty of Sciences, PO Box 24157, Douala, Republic of Cameroon
| | - Julya D. Ershova
- Department of Organic Chemistry, Russian People’s Friendship University, 6 Miklukho-Maklaya St, Moscow 117198, Russian Federation
| | - Mykola D. Obushak
- Department of Organic Chemistry, Ivan Franko National University of Lviv, 6 Kyryla and Mefodiya St, Lviv 79005, Ukraine
| | - Fedor I. Zubkov
- Department of Organic Chemistry, Russian People’s Friendship University, 6 Miklukho-Maklaya St, Moscow 117198, Russian Federation
| | - Victor N. Khrustalev
- X-Ray Structural Centre, A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov St, B-334, Moscow 119991, Russian Federation
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