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Rostán S, Porto S, Barbosa CLN, Assis D, Alvarez N, Machado FS, Mahler G, Otero L. A novel palladium complex with a coumarin-thiosemicarbazone hybrid ligand inhibits Trypanosoma cruzi release from host cells and lowers the parasitemia in vivo. J Biol Inorg Chem 2023; 28:711-723. [PMID: 37768364 DOI: 10.1007/s00775-023-02020-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023]
Abstract
In this work, two analogous coumarin-thio and semicarbazone hybrid compounds were prepared and evaluated as a potential antichagasic agents. Furthermore, palladium and platinum complexes with the thiosemicarbazone derivative as ligand (L1) were obtained in order to establish the effect of metal complexation on the antiparasitic activity. All compounds were fully characterized both in solution and in solid state including the resolution of the crystal structure of the palladium complex by X-ray diffraction methods. Unexpectedly, all experimental and theoretical characterizations in the solid state, demonstrated that the obtained palladium and platinum complexes are structurally different: [PdCl(L1)] and [PtCl2(HL1)]. All the studied compounds lower the proliferation of the amastigote form of Trypanosoma cruzi while some of them also have an effect on the trypomastigote stage. Additionally, the compounds inhibit T. cruzi release from host cells in variable extents. The Pd compound presented a remarkable profile in all the in vitro experiments, and it showed no toxicity for mammalian cells in the assayed concentrations. In this sense, in vivo experiments were performed for this compound using an acute model of Chagas disease. Results showed that the complex significantly lowered the parasite count in the mice blood with no significant toxicity.
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Affiliation(s)
- Santiago Rostán
- Graduate Program in Chemistry, Facultad de Química, Universidad de La República, Montevideo, Uruguay
- Área Química Inorgánica, Departamento Estrella Campos, Facultad de Química, Universidad de La República, Montevideo, Uruguay
| | - Samuel Porto
- Laboratorio de Inmunorregulación y Enfermedades Infecciosas (LIDIN), Universidade Federal de Minas Gerais, Belo Horizonte, Brasil
| | - Cesar L N Barbosa
- Laboratorio de Inmunorregulación y Enfermedades Infecciosas (LIDIN), Universidade Federal de Minas Gerais, Belo Horizonte, Brasil
| | - Diego Assis
- Laboratorio de Inmunorregulación y Enfermedades Infecciosas (LIDIN), Universidade Federal de Minas Gerais, Belo Horizonte, Brasil
| | - Natalia Alvarez
- Área Química Inorgánica, Departamento Estrella Campos, Facultad de Química, Universidad de La República, Montevideo, Uruguay
| | - Fabiana Simão Machado
- Laboratorio de Inmunorregulación y Enfermedades Infecciosas (LIDIN), Universidade Federal de Minas Gerais, Belo Horizonte, Brasil
| | - Graciela Mahler
- Laboratorio de Química Farmacéutica, Departamento de Química Orgánica, Facultad de Química, Universidad de La República, Montevideo, Uruguay
| | - Lucía Otero
- Área Química Inorgánica, Departamento Estrella Campos, Facultad de Química, Universidad de La República, Montevideo, Uruguay.
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Arif N, Shafiq Z, Noureen S, Khalid M, Ashraf A, Yaqub M, Irshad S, Khan MU, Arshad MN, Carmo Braga AA, Ragab AH, Al-Mhyawi SR. Synthesis, spectroscopic, SC-XRD/DFT and non-linear optical (NLO) properties of chromene derivatives. RSC Adv 2022; 13:464-477. [PMID: 36605672 PMCID: PMC9769377 DOI: 10.1039/d2ra07134g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022] Open
Abstract
In the present study, we reported the efficient synthesis of novel, heterocyclic, coumarin-based pyrano-chromene derivatives, 2-amino-8-methyl-5-oxo-4-[2-(2-oxo-2H-chromen-3-ylmethoxy)-phenyl]-4H,5H-pyrano[3,2-c]chromene-3-carbonitrile (4a) and 2-amino-8-methyl-5-oxo-4-[2-(2-oxo-2H-chromen-3-ylmethoxy)-phenyl]-4H,5H-pyrano[3,2-c]chromene-3-carboxylic acid methyl ester (4b). The chemical structures of synthesized compounds were resolved by employing various spectroscopic techniques like UV-Vis, FT-IR, 1H & 13C NMR, and single crystal X-ray diffraction (SC-XRD) analysis. The compounds; 4a and 4b, with appealing π-bonded skeleton were further analyzed in terms of their electronic and structural aspects using an integral approach of density functional theory (DFT) and time-dependent DFT (TD/DFT). The methodology: M06-2X/6-31G(d,p) level of theory was applied to compare their experimental data with theoretical outcomes using quantum chemical analysis. The frontier molecular orbitals (FMOs) study revealed that, 4a possesses a low band gap (5.168 eV) as compared to 4b (6.308 eV). Global reactivity parameters were associated with E gap values as 4a, with the lowest band gap showed the smaller value of hardness (0.094 eV) and a larger value of softness (5.266 eV). The non-linear optical (NLO) insight exhibited that, the average polarizability 〈α〉 and second hyperpolarizability (γ tot) were observed in 4a as 6.77005 × 10-23 and 0.145 × 104 esu, respectively. Overall, the computational studies suggest that the investigated compounds have distinct NLO properties.
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Affiliation(s)
- Nadia Arif
- Institute of Chemical Sciences, Organic Chemistry Division, Bahauddin Zakariya UniversityMultan-60800Pakistan
| | - Zahid Shafiq
- Institute of Chemical Sciences, Organic Chemistry Division, Bahauddin Zakariya UniversityMultan-60800Pakistan
| | - Sajida Noureen
- Materials Chemistry Laboratory, Institute of Chemistry, The Islamia University of Bahawalpur63100Pakistan
| | - Muhammad Khalid
- Institute of Chemistry, Khwaja Fareed University of Engineering & Information TechnologyRahim Yar Khan64200Pakistan,Centre for Theoretical and Computational Research, Khwaja Fareed University of Engineering & Information TechnologyRahim Yar Khan64200Pakistan
| | - Abida Ashraf
- Institute of Chemical Sciences, Organic Chemistry Division, Bahauddin Zakariya UniversityMultan-60800Pakistan
| | - Muhammad Yaqub
- Institute of Chemical Sciences, Organic Chemistry Division, Bahauddin Zakariya UniversityMultan-60800Pakistan
| | - Shabana Irshad
- Institute of Chemistry, Khwaja Fareed University of Engineering & Information TechnologyRahim Yar Khan64200Pakistan,Centre for Theoretical and Computational Research, Khwaja Fareed University of Engineering & Information TechnologyRahim Yar Khan64200Pakistan
| | | | - Muhammad Nadeem Arshad
- Center of Excellence for Advanced Materials Research (CEAMR), Faculty of Science, King Abdulaziz UniversityJeddahSaudi Arabia
| | - Ataualpa Albert Carmo Braga
- Departamento de Química Fundamental, Instituto de Química, Universidade de São PauloAv. Prof. Lineu Prestes 748São Paulo05508-000Brazil
| | - Ahmed H. Ragab
- Department of Chemistry, Faculty of Science, King Khalid UniversityAbha 62224Saudi Arabia
| | - Saedah R. Al-Mhyawi
- Department of Chemistry, College of Science, University of JeddahJeddah 21419Saudi Arabia
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Rostán S, Alvarez N, Veiga N, Otero L, Mahler G. New preparation protocols for coumarin-thiosemicarbazone hybrids: Solid state characterization, and in silico/NMR studies of the Z/E isomerization equilibria in solution. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Bale AT, Salar U, Khan KM, Chigurupati S, Fasina T, Ali F, Ali M, Nanda SS, Taha M, Perveen S. Chalcones and Bis-Chalcones Analogs as DPPH and ABTS Radical Scavengers. LETT DRUG DES DISCOV 2021. [DOI: 10.2174/1570180817999201001155032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Background:
A number of synthetic scaffolds, along with natural products, have been
identified as potent antioxidants. The present study deals with the evaluation of varyingly substituted,
medicinally distinct class of compounds “chalcones and bis-chalcones” for their antioxidant potential.
Methods:
In vitro radical scavenging activities were performed on a series of synthetic chalcones 1-
13 and bis-chalcones 14-18.
Results:
All molecules 1-18 revealed a pronounced 2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2ʹ-
azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) radicals scavenging potential in the
ranges of IC50s = 0.58 ± 0.14 - 1.72 ± 0.03 and 0.49 ± 0.3 - 1.48 ± 0.06 μM, respectively. Ascorbic
acid (IC50s = 0.5 ± 0.1 and 0.46 ± 0.17 μM for DPPH and ABTS, respectively) was used as a standard
radical scavenger.
Conclusion:
Structure-activity relationship (SAR) revealed an active participation of various
groups, including -SMe and -OMe in scavenging activity.
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Affiliation(s)
- Adebayo Tajudeen Bale
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi-75270,Pakistan
| | - Uzma Salar
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi-75270,Pakistan
| | - Khalid Mohammed Khan
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi-75270,Pakistan
| | - Sridevi Chigurupati
- Department of Medicinal Chemistry and Pharmacognosy, Collage of Pharmacy, Qassim University, Buraidah 52571,Saudi Arabia
| | | | - Farman Ali
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi-75270,Pakistan
| | - Muhammad Ali
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi-75270,Pakistan
| | | | - Muhammad Taha
- Department of Clinical Pharmacy, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 31441, Dammam,Saudi Arabia
| | - Shahnaz Perveen
- PCSIR, Laboratories Complex, Shahrah-e-Dr. Salimuzzaman, Karachi-75280,Pakistan
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