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Babu A, Sunil K, Sajith AM, Reddy EK, Santra S, Zyryanov GV, Venkatesh T, Bhadrachari S, Nibin Joy M. NMI-SO 2Cl 2-Mediated Amide Bond Formation: Facile Synthesis of Some Dihydrotriazolopyrimidine Amide Derivatives as Potential Anti-Inflammatory and Anti-Tubercular Agents. Pharmaceuticals (Basel) 2024; 17:548. [PMID: 38794119 PMCID: PMC11123900 DOI: 10.3390/ph17050548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 04/17/2024] [Accepted: 04/20/2024] [Indexed: 05/26/2024] Open
Abstract
Facile access to some novel biologically relevant dihydrotriazolopyrimidine carboxylic acid-derived amide analogues using NMI/SO2Cl2, and aromatic and aliphatic primary and secondary amines, is reported herein. The role of N-methylimidazole (NMI) as the base and sulfuryl chloride (SO2Cl2) as the coupling reagent has been effectively realized in accessing these molecules in good to excellent yields. The feasibility of the developed protocol has also been extended to the gram-scale synthesis of N-benzylbenzamide in a 75% yield from benzoic acid and benzyl amine. The newly synthesized compounds were tested via in vitro anti-inflammatory and anti-tubercular activity studies. The compounds 6aa and 6be were found to be the most active anti-inflammatory agents, whereas 6cb and 6ch were found to exhibit promising anti-tubercular potency when compared to other synthesized molecules. The structure-activity relationship (SAR) studies revealed the importance of the presence of electron-donating functionalities in enhancing the anti-inflammatory potential of the newly synthesized molecules. However, the presence of electron-withdrawing substituents was found to be significant for improving their anti-tubercular potency.
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Affiliation(s)
- Aravinda Babu
- Department of Chemistry, SSIT, Sri Siddhartha Academy of Higher Education, Tumkur 572107, Karnataka, India; (A.B.); (K.S.); (A.M.S.)
| | - Kenchaiah Sunil
- Department of Chemistry, SSIT, Sri Siddhartha Academy of Higher Education, Tumkur 572107, Karnataka, India; (A.B.); (K.S.); (A.M.S.)
| | - Ayyiliath Meleveetil Sajith
- Department of Chemistry, SSIT, Sri Siddhartha Academy of Higher Education, Tumkur 572107, Karnataka, India; (A.B.); (K.S.); (A.M.S.)
| | - Eeda Koti Reddy
- Department of Chemistry, Vignan’s Foundation for Science, Technology and Research—VFSTR (Deemed to be University), Vadlamudi, Guntur 522213, Andhra Pradesh, India;
| | - Sougata Santra
- Laboratory of Organic Synthesis, Institute of Chemical Technology, Ural Federal University, 19 Mira Street, Yekaterinburg 620002, Russia; (S.S.); (G.V.Z.)
| | - Grigory V. Zyryanov
- Laboratory of Organic Synthesis, Institute of Chemical Technology, Ural Federal University, 19 Mira Street, Yekaterinburg 620002, Russia; (S.S.); (G.V.Z.)
- I. Ya. Postovskiy Institute of Organic Synthesis, Ural Division of the Russian Academy of Sciences, 22 S. Kovalevskoy Street, Yekaterinburg 620219, Russia
| | - Talavara Venkatesh
- Department of P.G Studies and Research in Chemistry, Kuvempu University, Jnana Sahyadri, Shankaraghatta, Shimoga 577451, Karnataka, India;
| | - Somashekara Bhadrachari
- Department of Chemistry, Smt. Indira Gandhi Government First Grade Women’s College, Sagar 577401, Karnataka, India;
| | - Muthipeedika Nibin Joy
- Laboratory of Organic Synthesis, Institute of Chemical Technology, Ural Federal University, 19 Mira Street, Yekaterinburg 620002, Russia; (S.S.); (G.V.Z.)
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Pacetti M, Pismataro MC, Felicetti T, Giammarino F, Bonomini A, Tiecco M, Bertagnin C, Barreca ML, Germani R, Cecchetti V, Vicenti I, Tabarrini O, Zazzi M, Loregian A, Massari S. Switching the three-component Biginelli-like reaction conditions for the regioselective synthesis of new 2-amino[1,2,4]triazolo[1,5- a]pyrimidines. Org Biomol Chem 2024; 22:767-783. [PMID: 38167738 DOI: 10.1039/d3ob01861j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Among the eight different triazolopyrimidine isomers existing in nature, 1,2,4-triazolo[1,5-a]pyrimidine (TZP) is one of the most studied and used isomers in medicinal chemistry. For some years, our group has been involved in developing regioselective one-pot procedures for the synthesis of 2-amino-7-aryl-5-methyl- and 2-amino-5-aryl-7-methyl-TZPs of interest in the preparation of antiviral agents. In this work, taking advantage of a Biginelli-like multicomponent reaction (MCR), we report the identification of finely tunable conditions to regioselectively synthesize C-6 ester-substituted amino-TZP analogues, both in dihydro and oxidized forms. Indeed, the use of mild acidic conditions is strongly directed toward the regioselective synthesis of 5-aryl-7-methyl C-6-substituted TZP analogues, while the use of neutral ionic liquids shifted the regioselectivity towards 7-aryl-5-methyl derivatives. In addition, the novel synthesized scaffolds were functionalized at the C-2 position and evaluated for their antiviral activity against RNA viruses (influenza virus, flaviviruses, and SARS-CoV-2). Compounds 25 and 26 emerged as promising anti-flavivirus agents, showing activity in the low micromolar range.
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Affiliation(s)
- Martina Pacetti
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy.
| | | | - Tommaso Felicetti
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy.
| | - Federica Giammarino
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy
| | - Anna Bonomini
- Department of Molecular Medicine, University of Padua, 35121 Padua, Italy
| | - Matteo Tiecco
- Chemistry Interdisciplinary Project (ChIP), School of Pharmacy, University of Camerino, 62032 Camerino, MC, Italy
| | - Chiara Bertagnin
- Department of Molecular Medicine, University of Padua, 35121 Padua, Italy
| | | | - Raimondo Germani
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, Italy
| | - Violetta Cecchetti
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy.
| | - Ilaria Vicenti
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy
| | - Oriana Tabarrini
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy.
| | - Maurizio Zazzi
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy
| | - Arianna Loregian
- Department of Molecular Medicine, University of Padua, 35121 Padua, Italy
| | - Serena Massari
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy.
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3
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Abdelkhalek AS, Attia MS, Kamal MA. Triazolopyrimidine Derivatives: An Updated Review on Recent Advances in Synthesis, Biological Activities and Drug Delivery Aspects. Curr Med Chem 2024; 31:1896-1919. [PMID: 36852819 DOI: 10.2174/0929867330666230228120416] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 11/15/2022] [Accepted: 11/17/2022] [Indexed: 03/01/2023]
Abstract
Molecules containing triazolopyrimidine core showed diverse biological activities, including anti-Alzheimer's, anti-diabetes, anti-cancer, anti-microbial, anti-tuberculosis, anti-viral, anti-malarial, anti-inflammatory, anti-parkinsonism, and anti-glaucoma activities. Triazolopyrimidines have 8 isomeric structures, including the most stable 1,2,4-triazolo[1,5- a] pyrimidine ones. Triazolopyrimidines were obtained by using various chemical reactions, including a) 1,2,4-triazole nucleus annulation to pyrimidine, b) pyrimidines annulation to 1,2,4-triazole structure, c) 1,2,4-triazolo[l,5-a] pyrimidines rearrangement, and d) pyrimidotetrazine rearrangement. This review discusses synthetic methods, recent pharmacological actions and drug delivery perspectives of triazolopyrimidines.
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Affiliation(s)
- Ahmed S Abdelkhalek
- Department of Medicinal Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Mohamed S Attia
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Mohammad A Kamal
- Institutes for Systems Genetics, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Birulia, Bangladesh
- Novel Global Community Educational Foundation, Enzymoics, 7 Peterlee Place, Hebersham, NSW, 2770, Australia
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3-Aryl-5-aminobiphenyl Substituted [1,2,4]triazolo[4,3- c]quinazolines: Synthesis and Photophysical Properties. Molecules 2023; 28:molecules28041937. [PMID: 36838924 PMCID: PMC9963873 DOI: 10.3390/molecules28041937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 02/09/2023] [Accepted: 02/13/2023] [Indexed: 02/22/2023] Open
Abstract
Amino-[1,1']-biphenyl-containing 3-aryl-[1,2,4]triazolo[4,3-c]quinazoline derivatives with fluorescent properties have been designed and synthesized. The type of annelation of the triazole ring to the pyrimidine one has been unambiguously confirmed by means of an X-ray diffraction (XRD) method; the molecules are non-planar, and the aryl substituents form the pincer-like conformation. The UV/Vis and photoluminescent properties of target compounds were investigated in two solvents of different polarities and in a solid state. The samples emit a broad range of wavelengths and display fluorescent quantum yields of up to 94% in toluene solutions. 5-(4'-Diphenylamino-[1,1']-biphenyl-4-yl)-3-(4-(trifluoromethyl)phenyl)-[1,2,4]triazolo[4,3-c]quinazoline exhibits the strongest emission in toluene and a solid state. Additionally, the solvatochromic properties were studied for the substituted [1,2,4]triazolo[4,3-c]quinazolines. Moreover, the changes in absorption and emission spectra have been demonstrated upon the addition of water to MeCN solutions, which confirms aggregate formation, and some samples were found to exhibit aggregation-induced emission enhancement. Further, the ability of triazoloquinazolines to detect trifluoroacetic acid has been analyzed; the presence of TFA induces changes in both absorption and emission spectra, and acidochromic behavvior was observed for some triazoloquinazoline compounds. Finally, electronic-structure calculations with the use of quantum-chemistry methods were performed for synthesized compounds.
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Jahanbakhshi A, Farahi M. Immobilized sulfonic acid functionalized ionic liquid on magnetic cellulose as a novel catalyst for the synthesis of triazolo[4,3-a]pyrimidines. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Slivka M, Fizer M, Mariychuk R, Ostafin M, Moyzesh O, Koval G, Kamoshenkova OH, Rusyn I, l Lendel V. Synthesis and antimicrobial activity of functional derivatives of thiazolo[2,3-c][1,2,4]triazoles. LETT DRUG DES DISCOV 2022. [DOI: 10.2174/1570180819666220110145659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Background:
Condensed triazoles are a well-known class of heterocyclic compounds due to a wide range of biological activity. The study is dedicated to the evaluation of the antimicrobial potential of new functional derivatives of thiazolo[2,3-c][1,2,4]triazoles.
Methods:
Effective, easy-to-implement and low-cost routes to the production of title compounds via electrophilic intramolecular heterocyclization are reported. Bactericidal and fungicidal activities against Gram-positive and Gram-negative bacteria, and fungus were studied. The influence of functional groups on the biological activity of tested thiazolo[2,3-c][1,2,4]triazoles is discussed.
Results:
Microbiological evaluation shows that 6-[(trichlorotellanyl)methyl]-[1,3]thiazolo[2,3-c][1,2,4]triazol-3-amine hydrogen chloride 2a and 3-(2-hydroxyphenyl)-6-[(trichloro-λ4-tellanyl)methyl]-5,6-dihydro-[1,3]thiazolo[2,3-c][1,2,4]triazole 2g have a high bactericidal activity and Cu (I) salts of 3-(2-hydroxyphenyl)-6-iodomethyl/6-methylidene-5,6-dihydro-[1,3]thiazolo-[2,3-c][1,2,4]triazoles 5a,c have a high fungicidal activity.
Conclusion:
it must be concluded that these products or their derivatives may be of practical benefit as bactericidal and fungicidal agents.
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Affiliation(s)
- Mikhailo Slivka
- Department of Organic Chemistry, Faculty of Chemistry, Uzhhorod National University, Uzhhorod, Ukraine
| | - Maksym Fizer
- Department of Organic Chemistry, Faculty of Chemistry, Uzhhorod National University, Uzhhorod, Ukraine
| | - Ruslan Mariychuk
- Department of Ecology, Faculty of Humanity and Natural Sciences, University of Presov in Presov, Presov, Slovak Republic
| | - Marek Ostafin
- Department of Microbiology and Biomonitoring, Faculty of Agriculture and Economics, University of Agriculture in Krakow, Krakow, Poland
| | - Olexander Moyzesh
- Department of Organic Chemistry, Faculty of Chemistry, Uzhhorod National University, Uzhhorod, Ukraine
| | - Galyna Koval
- Department of Microbiology, Faculty of Medicine, Uzhhorod National University, Uzhhorod, Ukraine
| | | | - Ivan Rusyn
- Department of Organic Chemistry, Faculty of Chemistry, Uzhhorod National University, Uzhhorod, Ukraine
| | - Vasy l Lendel
- Department of Organic Chemistry, Faculty of Chemistry, Uzhhorod National University, Uzhhorod, Ukraine
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7
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Litvinchuk MB, Bentya AV, Stasevych MV, Zvarych VI, Komarovska-Porokhnyavets OZ, Stadnytska NE, Lubenets VI, Rusanov EB, Vovk MV. An efficient approach to the synthesis of 7-thioxosubstituted [1,3]thiazolo[3,2- c]pyrimidines and evaluation of their antimicrobial and antioxidant activities. PHOSPHORUS SULFUR 2022. [DOI: 10.1080/10426507.2021.1986504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Mariia B. Litvinchuk
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Anton V. Bentya
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | | | | | | | | | | | - Eduard B. Rusanov
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Mykhailo V. Vovk
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
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8
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Quantum chemical exploration on the inhibition performance of indole and some of its derivatives against copper corrosion. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Méndez-Arriaga JM, Rubio-Mirallas E, Quirós M, Sánchez-Moreno M. Zinc 1,2,4-triazolo[1,5-a]pyrimidine complexes: synthesis, structural characterization and their effect against Chagas disease. Med Chem 2021; 18:444-451. [PMID: 34387166 DOI: 10.2174/1573406417666210812162500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 03/30/2021] [Accepted: 05/12/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND The World Health Organization catalogues illnesses such as Chagas disease as neglected diseases, due the low investment in new drugs to fight them. The search for novel and non-side effects anti-parasitic compounds is one of the urgent needs of the Third World. The use of triazolopyrimidines and their metal complexes have demonstrated hopeful results in this field. OBJECTIVE This work studies the antiparasitic efficacy against Trypanosoma cruzi strains of a series of zinc triazolopyrimidine complexes. METHOD A series of Zn complexes has been synthesized by the reaction between the triazolopyrimidine derivatives 7-amino-1,2,4-triazolo[1,5-a]pyrimidine (7atp) and 5,7-dimethyl-1,2,4-triazolo[1,5-a]pyrimidine (dmtp) with Zn(SO4) • 7H2O, ZnCl2, and Zn(NO3)2 • 6H2O salts. The complexes have been analyzed by spectroscopic and thermal assays and X-ray diffraction methods have been used to dilucidate the crystalline structure of one of them. The antiparasitic efficacy was tested in vitro against Trypanosoma cruzi to compare the trypanocidal effect of different ligands and counteranions to fight Chagas disease. RESULTS The efficacy of these compounds against Trypanosoma cruzi has also been tested to compare the influence of different ligands and counteranions on the trypanocidal effect against Chagas disease. CONCLUSION Antiproliferative tests corroborate the synergistic trypanocidal effect of the triazolopyrimidine coordination complexes.
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Affiliation(s)
- José M Méndez-Arriaga
- Departamento de Biología y Geología, Física y Química Inorganica, Universidad Rey Juan Carlos, c/Tulipán s/n 28933, Móstoles, Madrid. Spain
| | - Erika Rubio-Mirallas
- Departamento de Química Inorgánica, Universidad de Granada, Avda. Fuentenueva s/n, 18071 Granada. Spain
| | - Miguel Quirós
- Departamento de Química Inorgánica, Universidad de Granada, Avda. Fuentenueva s/n, 18071 Granada. Spain
| | - Manuel Sánchez-Moreno
- Departamento de Parasitología, Universidad de Granada, Avda. Fuentenueva s/n, 18071 Granada. Spain
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Muhammad ZA, Farghaly TA, Althagafi I, Al‐Hussain SA, Zaki MEA, Harras MF. Synthesis of antimicrobial azoloazines and molecular docking for inhibiting COVID-19. J Heterocycl Chem 2021; 58:1286-1301. [PMID: 34230687 PMCID: PMC8250121 DOI: 10.1002/jhet.4257] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/24/2021] [Accepted: 03/04/2021] [Indexed: 11/12/2022]
Abstract
Diverse new azoloazines were synthesized from the reaction of fluorinated hydrazonoyl chlorides with heterocyclic thiones, 1,8-diaminonaphthalene, ketene aminal derivatives, and 4-amino-5-triflouromethyl-1,2,4-triazole-2-thiol. The mechanistic pathways and the structures of all synthesized derivatives were discussed and assured based on the available spectral data. The synthesized azoloazine derivatives were evaluated for their antifungal and antibacterial activities through zone of inhibition measurement. The results revealed promising antifungal activities for compounds 4, 5, 17a,b, 19, and 25 against the pathogenic fungal strains used; Aspergillus flavus and Candida albicans compared to ketoconazole. In addition, compounds 4, 5, 19, and 25 showed moderate antibacterial activities against most tested bacterial strains. Molecular docking studies of the promising compounds were carried out on leucyl-tRNA synthetase active site of Candida albicans, suggesting good binding in the active site forming stable complexes. Moreover, docking of the synthesized compounds was performed on the active site of SARS-CoV-2 3CLpro to predict their potential as a hopeful anti-COVID and to investigate their binding pattern.
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Affiliation(s)
- Zeinab A. Muhammad
- Department of Organic ChemistryNational Organization for Drug Control and Research (NODCAR)GizaEgypt
| | - Thoraya A. Farghaly
- Department of Chemistry, Faculty of ScienceCairo UniversityGizaEgypt
- Department of Chemistry, Faculty of Applied ScienceUmm Al‐Qura UniversityMakkahSaudi Arabia
| | - Ismail Althagafi
- Department of Chemistry, Faculty of Applied ScienceUmm Al‐Qura UniversityMakkahSaudi Arabia
| | - Sami A. Al‐Hussain
- Department of Chemistry, Faculty of ScienceAl‐Imam Mohammad Ibn Saud Islamic University (IMSIU)RiyadhSaudi Arabia
| | - Magdi E. A. Zaki
- Department of Chemistry, Faculty of ScienceAl‐Imam Mohammad Ibn Saud Islamic University (IMSIU)RiyadhSaudi Arabia
| | - Marwa F. Harras
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy (Girls)Al‐Azhar UniversityCairoEgypt
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Felicetti T, Pismataro MC, Cecchetti V, Tabarrini O, Massari S. Triazolopyrimidine Nuclei: Privileged Scaffolds for Developing Antiviral Agents with a Proper Pharmacokinetic Profile. Curr Med Chem 2021; 29:1379-1407. [PMID: 34042030 DOI: 10.2174/0929867328666210526120534] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 04/16/2021] [Accepted: 04/18/2021] [Indexed: 11/22/2022]
Abstract
Viruses are a continuing threat to global health. The lack or limited therapeutic armamentarium against some viral infections and increasing drug resistance issues make the search for new antiviral agents urgent. In recent years, a growing literature highlighted the use of triazolopyrimidine (TZP) heterocycles in the development of antiviral agents, with numerous compounds that showed potent antiviral activities against different RNA and DNA viruses. TZP core represents a privileged scaffold for achieving biologically active molecules, thanks to: i) the synthetic feasibility that allows to variously functionalize TZPs in the different positions of the nucleus, ii) the ability of TZP core to establish multiple interactions with the molecular target, and iii) its favorable pharmacokinetic properties. In the present review, after mentioning selected examples of TZP-based compounds with varied biological activities, we will focus on those antivirals that appeared in the literature in the last 10 years. Approaches used for their identification, the hit-to-lead studies, and the emerged structure-activity relationship will be described. A mention of the synthetic methodologies to prepare TZP nuclei will also be given. In addition, their mechanism of action, the binding mode within the biological target, and pharmacokinetic properties will be analyzed, highlighting the strengths and weaknesses of compounds based on the TZP scaffold, which is increasingly used in medicinal chemistry.
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Affiliation(s)
- Tommaso Felicetti
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy
| | | | - Violetta Cecchetti
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy
| | - Oriana Tabarrini
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy
| | - Serena Massari
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy
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12
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Cunningham C, Cloyd M, Phillips A, Khan S, Whalen K, Kesharwani T. A one-pot successive cyclization-alkylation strategy for the synthesis of 2,3-disubstituted benzo[ b]thiophenes. Org Biomol Chem 2021; 19:4107-4117. [PMID: 33978029 PMCID: PMC8211089 DOI: 10.1039/d1ob00358e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
In this study, a new environmentally benign iodine-mediated one-pot iodocyclization/alkylation strategy for the synthesis of benzo[b]thiophene derivatives starting from 2-alkynylthioanisoles was developed. The synthesis of a diverse population of 2,3-disubstituted benzo[b]thiophenes was achieved in high yields by employing moderate reaction conditions using 1,3-dicarbonyl substrates as the nucleophile and various substituted propargyl alcohols as both the cyclization precursor and the alkylating agent. This method resulted in the formation of a series of complex structures obtained in a single step. Additionally, a strategy was devised for the one pot iodocyclization/oxidation of propargyl alcohols into carbonyl functionalized benzo[b]thiophene structures. These green one-pot reaction processes were designed to reduce wastes and byproducts while generating a complex substitution pattern on the benzo[b]thiophene structure. The reported methodologies may be used to synthesize more functionalized benzo[b]thiophene structures that can be used in both biomedical and organic electronic applications.
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Affiliation(s)
- Christopher Cunningham
- Department of Chemistry, University of West Florida, 11000 University Pkway, Pensacola, Fl 32514, USA.
| | - Matthew Cloyd
- Department of Chemistry, University of West Florida, 11000 University Pkway, Pensacola, Fl 32514, USA.
| | - Aimee Phillips
- Department of Chemistry, University of West Florida, 11000 University Pkway, Pensacola, Fl 32514, USA.
| | - Soha Khan
- Department of Chemistry, University of West Florida, 11000 University Pkway, Pensacola, Fl 32514, USA.
| | - Katherine Whalen
- Department of Chemistry, University of West Florida, 11000 University Pkway, Pensacola, Fl 32514, USA.
| | - Tanay Kesharwani
- Department of Chemistry, University of West Florida, 11000 University Pkway, Pensacola, Fl 32514, USA.
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Pismataro MC, Felicetti T, Bertagnin C, Nizi MG, Bonomini A, Barreca ML, Cecchetti V, Jochmans D, De Jonghe S, Neyts J, Loregian A, Tabarrini O, Massari S. 1,2,4-Triazolo[1,5-a]pyrimidines: Efficient one-step synthesis and functionalization as influenza polymerase PA-PB1 interaction disruptors. Eur J Med Chem 2021; 221:113494. [PMID: 33962311 DOI: 10.1016/j.ejmech.2021.113494] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/30/2021] [Accepted: 04/18/2021] [Indexed: 11/18/2022]
Abstract
In the search for new anti-influenza virus (IV) compounds, we have identified the 1,2,4-triazolo[1,5-a]pyrimidine (TZP) as a very suitable scaffold to obtain compounds able to disrupt IV RNA-dependent RNA polymerase (RdRP) PA-PB1 subunits heterodimerization. In this work, in order to acquire further SAR insights for this class of compounds and identify more potent derivatives, we designed and synthesized additional series of analogues to investigate the role of the substituents around the TZP core. To this aim, we developed four facile and efficient one-step procedures for the synthesis of 5-phenyl-, 6-phenyl- and 7-phenyl-2-amino-[1,2,4]triazolo[1,5-a]pyrimidines, and 2-amino-5-phenyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-ol. Two analogues having the ethyl carboxylate moiety at the C-2 position of the TZP were also prepared in good yields. Then, the scaffolds herein synthesized and two previous scaffolds were functionalized and evaluated for their anti-IAV activity, leading to the identification of compound 22 that showed both anti-PA-PB1 (IC50 = 19.5 μM) and anti-IAV activity (EC50 = 16 μM) at non-toxic concentrations, thus resulting among the most active TZP derivatives reported to date by us. A selection of the synthesized compounds, along with a set of in-house available analogues, was also tested against SARS-CoV-2. The most promising compound 49 from this series displayed an EC50 value of 34.47 μM, highlighting the potential of the TPZ scaffold in the search for anti-CoV agents.
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Affiliation(s)
- Maria Chiara Pismataro
- Department of Pharmaceutical Sciences, University of Perugia, Via Del Liceo 1, 06123, Perugia, Italy
| | - Tommaso Felicetti
- Department of Pharmaceutical Sciences, University of Perugia, Via Del Liceo 1, 06123, Perugia, Italy
| | - Chiara Bertagnin
- Department of Molecular Medicine, University of Padua, Via Gabelli 63, 35121, Padua, Italy
| | - Maria Giulia Nizi
- Department of Pharmaceutical Sciences, University of Perugia, Via Del Liceo 1, 06123, Perugia, Italy
| | - Anna Bonomini
- Department of Molecular Medicine, University of Padua, Via Gabelli 63, 35121, Padua, Italy
| | - Maria Letizia Barreca
- Department of Pharmaceutical Sciences, University of Perugia, Via Del Liceo 1, 06123, Perugia, Italy
| | - Violetta Cecchetti
- Department of Pharmaceutical Sciences, University of Perugia, Via Del Liceo 1, 06123, Perugia, Italy
| | - Dirk Jochmans
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Herestraat 49, Box 1043, 3000, Leuven, Belgium
| | - Steven De Jonghe
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Herestraat 49, Box 1043, 3000, Leuven, Belgium
| | - Johan Neyts
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Herestraat 49, Box 1043, 3000, Leuven, Belgium
| | - Arianna Loregian
- Department of Molecular Medicine, University of Padua, Via Gabelli 63, 35121, Padua, Italy
| | - Oriana Tabarrini
- Department of Pharmaceutical Sciences, University of Perugia, Via Del Liceo 1, 06123, Perugia, Italy
| | - Serena Massari
- Department of Pharmaceutical Sciences, University of Perugia, Via Del Liceo 1, 06123, Perugia, Italy.
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14
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Potapov AY, Polikarchuk VA, Paponov BV, Ledeneva IV, Stolpovskaya NV, Kryl’skii DV, Shikhaliev KS. Three-Component Condencations of 3-Amino-1,2,4-triazoles, Methyl 3-(2-Cycloamino-4-methylpyrimidin-5-yl)-3-oxopropionoates, and a Series of C1 Synthons as a Convenient Approach to Pyrimidin-5-yl-1,2,4-triazolo[1,5-a]pyrimidines. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1070428021020123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Antiproliferative-antimicrobial properties and structural analysis of newly synthesized Schiff bases derived from some 1,3,4-thiadiazole compounds. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128570] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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16
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Pinheiro S, Pinheiro EMC, Muri EMF, Pessôa JC, Cadorini MA, Greco SJ. Biological activities of [1,2,4]triazolo[1,5-a]pyrimidines and analogs. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02609-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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17
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Novel variants of the multicomponent reaction for the synthesis of 1,2,4-triazolo[1,5-а]pyrimidines and pyrido[3,4-е][1,2,4]triazolo[1,5-а]pyrimidines. Chem Heterocycl Compd (N Y) 2020. [DOI: 10.1007/s10593-020-02773-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Slivka MV, Korol NI, Fizer MM. Fused bicyclic 1,2,4‐triazoles with one extra sulfur atom: Synthesis, properties, and biological activity. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4044] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Mikhailo V. Slivka
- Organic Chemistry DepartmentUzhhorod National University Uzhhorod Ukraine
| | - Natalia I. Korol
- Organic Chemistry DepartmentUzhhorod National University Uzhhorod Ukraine
| | - Maksym M. Fizer
- Organic Chemistry DepartmentUzhhorod National University Uzhhorod Ukraine
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19
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Kamal R, Kumar R, Kumar V, Bhardwaj JK, Saraf P, Kumar A, Pandit K, Kaur S, Chetti P, Beura S. Diacetoxy iodobenzene mediated regioselective synthesis and characterization of novel [1,2,4]triazolo[4,3-a]pyrimidines: apoptosis inducer, antiproliferative activities and molecular docking studies. J Biomol Struct Dyn 2020; 39:4398-4414. [PMID: 32552396 DOI: 10.1080/07391102.2020.1777900] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Prompt and regioselective synthesis of eleven novel [1,2,4]triazolo[4,3-a]pyrimidines 2a-2k, via intramolecular oxidative-cyclization of 2-(2-arylidenehydrazinyl)-4-methyl-6-phenylpyrimidine derivatives 1a-1k has been demonstrated here using diacetoxy iodobenzene (DIB) as inexpensive and ecofriendly hypervalent iodine(III) reagent in CH2Cl2 at room temperature. Regiochemistry of final product has been established by developing single crystal and studied X-ray crystallographic data for two derivatives 2c and 2h without any ambiguity. These prominent [1,2,4]triazolo[4,3-a]pyrimidines were evaluated for human osteosarcoma bone cancer (MG-63) and breast cancer (MCF-7) cell lines using MTT assay to find potent antiproliferative agent and also on testicular germ cells to find potent apoptotic inducing activities. All compounds show significant cytotoxicity, particularly 3-(2,4-dichlorophenyl)-5-methyl-7-phenyl-[1,2,4]triazolo[4,3-a]pyrimidine (2g) was found significant apoptotic inducing molecule, as well as the most potent cytotoxic agent against bone cancer (MG-63) and breast cancer (MCF-7) cell lines with GI50 value 148.96 µM and 114.3 µM respectively. Molecular docking studies has been carried out to see the molecular interactions of synthesized compounds with the protein thymidylate synthase (PBD ID: 2G8D).Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Raj Kamal
- Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana, India
| | - Ravinder Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana, India
| | - Vipan Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana, India
| | | | - Priyanka Saraf
- Department of Zoology, Kurukshetra University, Kurukshetra, Haryana, India
| | - Ajay Kumar
- Department of Botanical & Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Kritika Pandit
- Department of Botanical & Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Satwinderjeet Kaur
- Department of Botanical & Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Prabhakar Chetti
- Department of Chemistry, National Institute of Technology (NIT), Kurukshetra, Haryana, India
| | - Satyajit Beura
- Department of Chemistry, National Institute of Technology (NIT), Kurukshetra, Haryana, India
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20
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Eltyshev AK, Minin AS, Smoliuk LT, Benassi E, Belskaya NP. 2-Aryl-2,4-dihydro-5H-[1,2,3]triazolo[4,5-d]pyrimidin-5-ones as a New Platform for the Design and Synthesis of Biosensors and Chemosensors. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901582] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | - Artem S. Minin
- Ural Federal University; 19 Mira Str. 620002 Yekaterinburg Russia
- M. N. Mikheev Institute of Metal Physics; Ural Branch of Russian Academy of Science; 18 S. Kovalevskaya Str. 620108 Yekaterinburg Russia
| | - Leonid T. Smoliuk
- Institute of Immunology and Physiology; Ural Branch of Russian Academy of Science; 20 S. Kovalevskaya Str. 620049 Yekaterinburg Russia
| | - Enrico Benassi
- Lanzhou Institute of Chemical Physics; Chinese Academy of Science; 18 Tianshui Middle Rd 73000020 Lanzhou Shi Gansu Sheng P.R. China
- Department of Chemistry; Hexi University; 734000 Zhangye P. R. China
| | - Nataliya P. Belskaya
- Ural Federal University; 19 Mira Str. 620002 Yekaterinburg Russia
- I. Ya. Postovsky Institute of Organic Synthesis; Ural Branch of Russian Academy of Science; 20 S. Kovalevskaya Str. 620219 Yekaterinburg Russia
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