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Structure and Computational Studies of New Sulfonamide Compound: {(4-nitrophenyl)sulfonyl}tryptophan. Molecules 2022; 27:molecules27217400. [DOI: 10.3390/molecules27217400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 10/23/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022] Open
Abstract
Synthesis of sulfonamide through an indirect method that avoids contamination of the product with no need for purification has been carried out using the indirect process. Here, we report the synthesis of a novel sulfonamide compound, ({4-nitrophenyl}sulfonyl)tryptophan (DNSPA) from 4-nitrobenzenesulphonylchloride and L-tryptophan precursors. The slow evaporation method was used to form single crystals of the named compound from methanolic solution. The compound was characterized by X-ray crystallographic analysis and spectroscopic methods (NMR, IR, mass spectrometry, and UV-vis). The sulfonamide N-H NMR signal at 8.07–8.09 ppm and S-N stretching vibration at 931 cm−1 indicate the formation of the target compound. The compound crystallized in the monoclinic crystal system and P21 space group with four molecules of the compound in the asymmetric unit. Molecular aggregation in the crystal structure revealed a 12-molecule aggregate synthon sustained by O-H⋯O hydrogen bonds and stabilised by N-H⋯O intermolecular contacts. Experimental studies were complemented by DFT calculations at the B3LYP/6-311++G(d,p) level of theory. The computed structural and spectroscopic data are in good agreement with those obtained experimentally. The energies of interactions between the units making up the molecule were calculated. Molecular docking studies showed that DNSPA has a binding energy of −6.37 kcal/mol for E. coli DNA gyrase (5MMN) and −6.35 kcal/mol for COVID-19 main protease (6LU7).
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Novel Tl(III) complexes containing pyridine-2,6-dicarboxylate derivatives with selective anticancer activity through inducing mitochondria-mediated apoptosis in A375 cells. Sci Rep 2021; 11:15699. [PMID: 34344980 PMCID: PMC8333620 DOI: 10.1038/s41598-021-95278-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 07/23/2021] [Indexed: 02/07/2023] Open
Abstract
Three novel Tl(III) complexes (C1), (C2) and (C3) were synthesized using the one-pot reactions of pyridine dicarboxylic acid derivatives, 2-aminobenzimidazole and/or 4-aminopyridine, and also thallium(III) nitrate trihydrate metal salt. The structure of all three complexes was determined by the single-crystal X-ray diffraction. C1 and C2 were realized to be isostructural with disordered square anti-prismatic geometry and for C3 arrangement of the distorted tricapped triangular prism was proposed. Cyclic voltammetry measurements on the complexes exhibited that formal potential values are more positive for C1 (E0' 0.109 V) and C3 (E0' 0.244 V) compared to C2 (E0' -0.051 V), versus Ag/AgCl under argon. Moreover, cytotoxicity of the compounds was evaluated in vitro against two cancer cell lines including a human melanoma (A375), a human colon adenocarcinoma (HT29), and also one normal cell human foreskin fibroblast (HFF). The selective and potent cytotoxicity effect was exhibited by C1 and C3 on cancer cell lines. The apoptosis through a caspase-dependent mitochondrion pathway was confirmed by ROS production, MMP reduction, p53 activation, Bax up-regulation, and Bcl-2 down-regulation, cytochrome c release, procaspase-9, and 3 expression, for A375 cells treated to C1 and C3. According to similar cellular uptake of the complexes in A375 cell line, the generation of ROS was considered as an effective agent to justify the inhibition effect C1 and C3 on mentioned cells. Furthermore, arresting the cell cycle in the G2-M phase and inducing apoptosis were indicated by these two complexes.
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Oruma US, Ukoha PO, Uzoewulu CP, Ndefo JC, Ugwuoke SC, Ukwueze NN, Eze TE, Ekowo LC, Eze FU, Chinaegbomkpa UV, Okafor SN, Ezeorah CJ. Synthesis, Biological and In Silico Studies of a Tripodal Schiff Base Derived from 2,4,6-Triamino-1,3,5-triazine and Its Trinuclear Dy(III), Er(III), and Gd(III) Salen Capped Complexes. Molecules 2021; 26:molecules26144379. [PMID: 34299654 PMCID: PMC8304507 DOI: 10.3390/molecules26144379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/28/2021] [Accepted: 07/14/2021] [Indexed: 12/03/2022] Open
Abstract
A tripodal Schiff base ligand, 2,4,6-Tris(4-carboxybenzimino)-1,3,5-triazine (MT) and its trinuclear Dy(III), Er(III), and Gd(III) complexes were synthesized. These were characterized using UV-visible, IR, 1H, and 13C NMR spectroscopies, elemental analysis, and molar conductivity measurements. The spectral studies indicate that the ligand is hexadentate and coordinates to the Ln(III) ions through the oxygen atoms of the carboxylic group. The trinuclear complexes were characterized as being bridged by carboxylate anions to the Dy(III), Er(III), and Gd(III) salen centers and displaying a coordination number of six. Biological studies revealed that MT is more active against the test micro-organisms relative to the trinuclear complexes. Acute toxicity studies revealed that MT is safe and has a wide range of effective doses (ED50). In vivo antimalarial studies indicate that MT could serve as an effective antimalarial agent since it has parasitemia inhibition of 84.02% at 50 mg/kg and 65.81% at 25 mg/kg, close to the value (87.22%) of the standard drug—Artesunate. Molecular docking simulation studies on the compounds against SARS-CoV-2 (6Y84) and E. coli DNA gyrase (5MMN) revealed effective binding interactions through multiple bonding modes. The binding energy calculated for Er(III)MT-6Y84 and Er(III)MT-5MMN complexes showed active molecules with the ability to inhibit SARS-CoV-2 and E. coli DNA gyrase.
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Affiliation(s)
- Uchechukwu Susan Oruma
- Coordination Chemistry and Inorganic Pharmaceuticals Unit, Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka 410001, Nigeria; (U.S.O.); (P.O.U.)
| | - Pius Oziri Ukoha
- Coordination Chemistry and Inorganic Pharmaceuticals Unit, Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka 410001, Nigeria; (U.S.O.); (P.O.U.)
| | - Chiamaka Peace Uzoewulu
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka 410001, Nigeria; (C.P.U.); (N.N.U.); (T.E.E.); (L.C.E.); (F.U.E.); (U.V.C.)
| | - Joseph Chinedum Ndefo
- Department of Science Laboratory Sciences, University of Nigeria, Nsukka 410001, Nigeria;
| | | | - Nkechinyere Nwanneka Ukwueze
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka 410001, Nigeria; (C.P.U.); (N.N.U.); (T.E.E.); (L.C.E.); (F.U.E.); (U.V.C.)
| | - Tochukwu Emmanuella Eze
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka 410001, Nigeria; (C.P.U.); (N.N.U.); (T.E.E.); (L.C.E.); (F.U.E.); (U.V.C.)
- Department of Biochemistry, University of Nigeria, Nsukka 410001, Nigeria;
| | - Lilian Chinenye Ekowo
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka 410001, Nigeria; (C.P.U.); (N.N.U.); (T.E.E.); (L.C.E.); (F.U.E.); (U.V.C.)
| | - Florence Uchenna Eze
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka 410001, Nigeria; (C.P.U.); (N.N.U.); (T.E.E.); (L.C.E.); (F.U.E.); (U.V.C.)
| | - Uchenna Vivian Chinaegbomkpa
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka 410001, Nigeria; (C.P.U.); (N.N.U.); (T.E.E.); (L.C.E.); (F.U.E.); (U.V.C.)
- Department of Chemistry, Federal University of Technology, Owerri 460114, Nigeria
| | - Sunday Nwankwo Okafor
- Department of Pharmaceutical and Medicinal Chemistry, University of Nigeria, Nsukka 410001, Nigeria
- Correspondence: (S.N.O.); (C.J.E.); Tel.: +234-803-655-6699 (S.N.O.); +234-703-299-6667 (C.J.E.)
| | - Chigozie Julius Ezeorah
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka 410001, Nigeria; (C.P.U.); (N.N.U.); (T.E.E.); (L.C.E.); (F.U.E.); (U.V.C.)
- Correspondence: (S.N.O.); (C.J.E.); Tel.: +234-803-655-6699 (S.N.O.); +234-703-299-6667 (C.J.E.)
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Organometallic complexes of neodymium: an overview of synthetic methodologies based on coordinating elements. REV INORG CHEM 2021. [DOI: 10.1515/revic-2020-0019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Abstract
Organometallic complexes of neodymium have unique coordinating ability to form both micro and macromolecules as well as metal-based polymers. These complexes have been reported in different fields and play a tremendous role in luminescence, catalytic, biological and magnetic applications. So, the current study will comprise all possible routes for the synthesis of organometallic complexes of neodymium. Neodymium complexes have been synthesized of single, double, triple and tetra linkages with H, C, N, O as well as S, B, and X. The detailed synthetic routes have been classified into four categories but in brief, neodymium forms complexes by reacting metal chloride, nitrate or oxide (hydrated or dehydrated) as precursor along with appropriate ligand. Most applied solvents for neodymium complexes were Toluene and THF. These complexes required a range of temperature based on the nature of complexes as well as linkages. The authors have surveyed the research work published through 2011–2020 and provide a comprehensive overview to understand the synthetic routes of organometallic complexes of neodymium.
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Khalil I, Celis‐Cornejo CM, Thomas K, Bazin P, Travert A, Pérez‐Martínez DJ, Baldovino‐Medrano VG, Paul JF, Maugé F. In Situ IR‐ATR Study of the Interaction of Nitrogen Heteroaromatic Compounds with HY Zeolites: Experimental and Theoretical Approaches. ChemCatChem 2019. [DOI: 10.1002/cctc.201901560] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ibrahim Khalil
- Univ. Normandie, UNICAEN, CNRSLaboratoire Catalyse et Spectrochimie (LCS) Caen F-14050 France
| | - Carlos M. Celis‐Cornejo
- Centro de Investigaciones en Catálisis, Parque Tecnológico de GuatiguaráUniversidad Industrial de Santander Piedecuesta 681011 Colombia
| | - Karine Thomas
- Univ. Normandie, UNICAEN, CNRSLaboratoire Catalyse et Spectrochimie (LCS) Caen F-14050 France
| | - Philippe Bazin
- Univ. Normandie, UNICAEN, CNRSLaboratoire Catalyse et Spectrochimie (LCS) Caen F-14050 France
| | - Arnaud Travert
- Univ. Normandie, UNICAEN, CNRSLaboratoire Catalyse et Spectrochimie (LCS) Caen F-14050 France
| | | | - Víctor G. Baldovino‐Medrano
- Centro de Investigaciones en Catálisis, Parque Tecnológico de GuatiguaráUniversidad Industrial de Santander Piedecuesta 681011 Colombia
- Laboratorio de Ciencia de Superficies, Parque Tecnológico de GuatiguaráUniversidad Industrial de Santander Piedecuesta 681011 Colombia
| | - Jean François Paul
- Univ. Lille, CNRS, ENSCLCentrale Lille, UMR 8181-UCCS, Unité de Catalyse et Chimie du Solide Lille F-59000 France
| | - Françoise Maugé
- Univ. Normandie, UNICAEN, CNRSLaboratoire Catalyse et Spectrochimie (LCS) Caen F-14050 France
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Atta EM, Hegab KH, Abdelgawad AAM, Youssef AA. Synthesis, characterization and cytotoxic activity of naturally isolated naringin-metal complexes. Saudi Pharm J 2019; 27:584-592. [PMID: 31061628 PMCID: PMC6488849 DOI: 10.1016/j.jsps.2019.02.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Indexed: 01/10/2023] Open
Abstract
High-purity naringin was isolated from the fruit peels of Citrus maxima and characterized by various spectroscopic methods like UV and NMR. The isolated compound ligand (HL) was used as ligand-metal complexes synthesis after using Ag (I), Y (III) and Ru (III) metals. These ligand-metal complexes were characterized by elemental analysis, FT-IR, UV–VIS, TGA, molar conductance and magnetic properties. Cytotoxic activity of the isolated naringin and its metal complexes were investigated against two human cancer cell lines namely, white breast Adenocarcinoma (MCF7) and Lung carcinoma (A549) using cell viability assay. Transition metal increased the cytotoxic activity of naringin when they were conjugated. LC50 of Ag ligand complex demonstrated strong cytotoxicity against MCF-7 and A549 cell line that was found higher active more than three and four times the strength, respectively when compared to LC50 of Adriamycin. While LC50 of Adriamycin compound was slightly more active only about 30% and twice the strength of the Ru ligand complex against MCF-7 and A549 cell line, respectively.
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Affiliation(s)
- Emad M Atta
- Chemistry Dept., Faculty of Science, Jazan Univ., Saudi Arabia.,Genetic Engineering and Biotechnology Research Institute Univ. of Sadat City, Egypt
| | - Khaled H Hegab
- Chemistry Dept., Faculty of Science, Jazan Univ., Saudi Arabia.,Inorganic Chemistry Dept. National Research Center, Giza, Egypt
| | - Ahmed A M Abdelgawad
- Chemistry Dept., Faculty of Science, Jazan Univ., Saudi Arabia.,Medicinal and Aromatic Plants Dept., Desert Research Center, Cairo, Egypt
| | - Abdelghany A Youssef
- Chemistry Dept., Faculty of Science, Jazan Univ., Saudi Arabia.,Medicinal and Aromatic Plants Researches Dept., Pharmaceutical and Drug Industries Division, N. R. C., Giza, Egypt
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Oruma US, Ukoha PO, Rhyman L, Elzagheid MI, Obasi LN, Ramasami P, Jurkschat K. Synthesis, Characterization, Antimicrobial Screening, and Computational Studies of a Tripodal Schiff Base Containing Pyrimidine Unit. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3142] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Uchechukwu Susan Oruma
- Coordination Chemistry and Inorganic Pharmaceuticals Unit, Department of Pure and Industrial Chemistry; University of Nigeria; Nsukka 410001 Nigeria
| | - Pius Oziri Ukoha
- Coordination Chemistry and Inorganic Pharmaceuticals Unit, Department of Pure and Industrial Chemistry; University of Nigeria; Nsukka 410001 Nigeria
| | - Lydia Rhyman
- Computational Chemistry Group, Department of Chemistry, Faculty of Science; University of Mauritius; Réduit 80837 Mauritius
- Department of Applied Chemistry; University of Johannesburg; Doornfontein Johannesburg 2028 South Africa
- Department of Chemistry; University of Johannesburg; PO Box 524, Auckland Park Johannesburg 2006 South Africa
| | - Mohamed I. Elzagheid
- Department of Chemical and Process Engineering; Jubail Industrial College; Jubail 31961 Saudi Arabia
| | - Lawrence Nnamdi Obasi
- Coordination Chemistry and Inorganic Pharmaceuticals Unit, Department of Pure and Industrial Chemistry; University of Nigeria; Nsukka 410001 Nigeria
| | - Ponnadurai Ramasami
- Computational Chemistry Group, Department of Chemistry, Faculty of Science; University of Mauritius; Réduit 80837 Mauritius
- Department of Applied Chemistry; University of Johannesburg; Doornfontein Johannesburg 2028 South Africa
| | - Klaus Jurkschat
- Technische Universität; Otto Hahn Street 6, Lehrstühle für Anorganische Chemie II, Raum C2-07-332 Dortmund D-44227 Germany
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