1
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Danagulyan GG, Panosyan HA, Gharibyan VK, Hasratyan AH. A Simple and Easily Implemented Method for the Regioselective Introduction of Deuterium into Azolo[1,5- a]pyrimidines Molecules. Molecules 2023; 28:molecules28062869. [PMID: 36985841 PMCID: PMC10054722 DOI: 10.3390/molecules28062869] [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: 02/09/2023] [Revised: 03/16/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
A method for the technically easy-to-implement synthesis of deuterium-labeled pyrazolo[1,5-a]pyrimidines and 1,2,4-triazolo[1,5-a]pyrimidines have been developed. The regioselectivity of such transformations has been shown. 1H NMR and mass spectrometric methods have proved the quantitative nature of such transformations and the kinetics of deuterium exchange has been studied. Spectrally, at different temperatures (+30 °C, -10 °C and -15 °C), the kinetics of the process was studied both in CD3OD and in deuterated alkali.
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Affiliation(s)
- Gevorg G Danagulyan
- Laboratory of Bioactive Azaheterocycles, Institute of Biomedicine and Pharmacy, Russian-Armenian University, Hovsep Emin Str. 123, Yerevan 0051, Armenia
- Scientific and Technological Center of Organic and Pharmaceutical Chemistry, The National Academy of Sciences of the Republic of Armenia, Azatutyan Ave. 26, Yerevan 0014, Armenia
| | - Henrik A Panosyan
- Scientific and Technological Center of Organic and Pharmaceutical Chemistry, The National Academy of Sciences of the Republic of Armenia, Azatutyan Ave. 26, Yerevan 0014, Armenia
| | - Vache K Gharibyan
- Laboratory of Bioactive Azaheterocycles, Institute of Biomedicine and Pharmacy, Russian-Armenian University, Hovsep Emin Str. 123, Yerevan 0051, Armenia
| | - Ani H Hasratyan
- Laboratory of Bioactive Azaheterocycles, Institute of Biomedicine and Pharmacy, Russian-Armenian University, Hovsep Emin Str. 123, Yerevan 0051, Armenia
- Scientific and Technological Center of Organic and Pharmaceutical Chemistry, The National Academy of Sciences of the Republic of Armenia, Azatutyan Ave. 26, Yerevan 0014, Armenia
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2
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Biswas S, De Angelis L, Rivera G, Arman H, Doyle MP. Inverse Electron Demand Diels-Alder-Type Heterocycle Syntheses with 1,2,3-Triazine 1-Oxides: Expanded Versatility. Org Lett 2023; 25:1104-1108. [PMID: 36787541 DOI: 10.1021/acs.orglett.2c04360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
1,2,3-Triazine 1-oxides are remarkably effective substrates for inverse electron demand Diels-Alder reactions. Formed from vinyldiazoacetates via reaction with tert-butyl nitrite, these stable heterocyclic compounds undergo clean nucleophilic addition with amidines to form pyrimidines, with β-ketocarbonyl compounds and related nitrile derivatives to form polysubstituted pyridines and with 3/5-aminopyrazoles to form pyrazolo[1,5-a]pyrimidines, in high yield. These practical reactions are rapid at room temperature, are base catalyzed, and offer a diversity of structural modifications.
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Affiliation(s)
- Soumen Biswas
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Luca De Angelis
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Gildardo Rivera
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, 88710 Reynosa, México
| | - Hadi Arman
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Michael P Doyle
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
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3
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Sarmiento JT, Portilla J. Current Advances in Diazoles-based Chemosensors for CN- and FDetection. Curr Org Synth 2023; 20:77-95. [PMID: 35184705 DOI: 10.2174/1570179419666220218095741] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 12/19/2021] [Accepted: 01/10/2022] [Indexed: 12/16/2022]
Abstract
Advances in molecular probes have recently intensified because they are valuable tools in studying species of interest for human health, the environment, and industry. Among these species, cyanide (CN-) and fluoride (F-) stand out as hazardous and toxic ions in trace amounts. Thus, there is a significant interest in probes design for their detection with diverse diazoles (pyrazole and imidazole) used for this purpose. These diazole derivatives are known as functional molecules because of their known synthetic versatility and applicability, as they exhibit essential photophysical properties with helpful recognition centers. This review provides an overview of the recent progress (2017-2021) in diazole-based sensors for CN- and F- detection, using the azolic ring as a signaling or recognition unit. The discussion focuses on the mechanism of the action described for recognizing the anion, the structure of the probes with the best synthetic simplicity, detection limits (LODs), application, and selectivity. In this context, the analysis involves probes for cyanide sensing first, then probes for fluoride sensing, and ultimately, dual probes that allow both species recognition.
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Affiliation(s)
- Jeymy T Sarmiento
- Department of Chemistry, Faculty of Sciences, Universidad de los Andes, Bogota, D.C, Colombia
| | - Jaime Portilla
- Department of Chemistry, Faculty of Sciences, Universidad de los Andes, Bogota, D.C, Colombia
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4
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Synthesis, anticancer activity, and molecular docking of new pyrazolo[1,5-a]pyrimidine derivatives. JOURNAL OF SAUDI CHEMICAL SOCIETY 2023. [DOI: 10.1016/j.jscs.2023.101599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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5
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Reaction of 3-Acetylcoumarin: From Methods to Mechanism. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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6
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Recent Advances in Synthesis and Properties of Pyrazoles. CHEMISTRY 2022. [DOI: 10.3390/chemistry4030065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Pyrazole-containing compounds represent one of the most influential families of N-heterocycles due to their proven applicability and versatility as synthetic intermediates in preparing relevant chemicals in biological, physical-chemical, material science, and industrial fields. Therefore, synthesizing structurally diverse pyrazole derivatives is highly desirable, and various researchers continue to focus on preparing this functional scaffold and finding new and improved applications; this review highlights some of the most recent and strategic examples regarding the synthesis and properties of different pyrazole derivatives, mainly reported from 2017–present. The discussion involves strategically functionalized rings (i.e., amines, carbaldehydes, halides, etc.) and their use in forming various fused systems, predominantly bicyclic cores with 5:6 fusion taking advantage of our experience in this field and the more recent investigations of our research group.
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7
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Tigreros A, Macías M, Portilla J. Structural, Photophysical, and Water Sensing Properties of Pyrazolo[1,5‐a]pyrimidine–Triphenylamine Hybrid Systems. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202200133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alexis Tigreros
- Universidad de Los Andes Chemistry Carrera 1 No. 18A-10, Bogota 111711 111711 Bogotá COLOMBIA
| | - Mario Macías
- Universidad de Los Andes Chemistry Carrera 1 No. 18A-10, Bogota 111711 111711 BOGOTA D.C. COLOMBIA
| | - Jaime Portilla
- Universidad de los Andes Bogotá D. C. Cra. 1 No. 18 A 12, Edificio Q, Of. 830Call 95 No. 71 - 11, Apto 204-1 111711 Bogotá COLOMBIA
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8
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Aranzazu SL, Tigreros A, Arias-Gómez A, Zapata-Rivera J, Portilla J. BF 3-Mediated Acetylation of Pyrazolo[1,5- a]pyrimidines and Other π-Excedent ( N-Hetero)arenes. J Org Chem 2022; 87:9839-9850. [PMID: 35834668 DOI: 10.1021/acs.joc.2c00881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An operably simple microwave-assisted BF3-mediated acetylation reaction of pyrazolo[1,5-a]pyrimidines and a plausible mechanism based on density functional theory (DFT) theoretical calculations for this transformation are reported. Remarkably, and to the best of our knowledge, this is the first example of the direct acetylation for the functional pyrazolo[1,5-a]pyrimidine (PP) core. The synthesis of this essential building block is reported in high yields using mild reaction conditions, inexpensive reagents, and even substrates with electron-deficient or highly hindered groups. In addition, one of the new methyl ketones was successfully used as a substrate for producing novel and valuable bis-electrophilic compounds with yields of up to 90%. Notably, the discovered acetylation method was successfully applied in other π-excedent (N-hetero)aromatic substrates.
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9
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Alizadeh A, Rostampoor A. Efficient One Pot and Chemoselective Synthesis of Polysubstituted Dihydro‐6
H
‐chromeno[4,3‐
d
]pyrazolo[1,5‐
a
]pyrimidin‐6‐ones via a Four‐Component Reaction. ChemistrySelect 2022. [DOI: 10.1002/slct.202200299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Abdolali Alizadeh
- Department of Chemistry Tarbiat Modares University, P.O. Box 14115-175 Tehran Iran
| | - Azar Rostampoor
- Department of Chemistry Tarbiat Modares University, P.O. Box 14115-175 Tehran Iran
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10
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Bromo‐Substituted Diazenyl‐pyrazolo[1,5‐a]pyrimidin‐2‐amines: Sonogashira Cross‐Coupling Reaction, Photophysical Properties, Bio‐Interaction and HSA light‐up sensor. Chembiochem 2022; 23:e202200248. [DOI: 10.1002/cbic.202200248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 05/13/2022] [Indexed: 11/07/2022]
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11
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Tigreros A, Portilla J. Ecological and economic effort analysis in molecular sensor development used for optical detection of cyanide ions. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200249] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Alexis Tigreros
- Universidad de Los Andes Chemistry , Carrera 1 No. 18A-10 111711 Bogotá DC COLOMBIA
| | - Jaime Portilla
- Universidad de los Andes Bogotá D. C. Cra. 1 No. 18 A 12, Edificio Q, Of. 830Call 95 No. 71 - 11, Apto 204-1 111711 Bogotá COLOMBIA
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12
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Sumita M, Terayama K, Suzuki N, Ishihara S, Tamura R, Chahal MK, Payne DT, Yoshizoe K, Tsuda K. De novo creation of a naked eye-detectable fluorescent molecule based on quantum chemical computation and machine learning. SCIENCE ADVANCES 2022; 8:eabj3906. [PMID: 35263133 PMCID: PMC8906732 DOI: 10.1126/sciadv.abj3906] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 01/19/2022] [Indexed: 06/14/2023]
Abstract
Designing fluorescent molecules requires considering multiple interrelated molecular properties, as opposed to properties that straightforwardly correlated with molecular structure, such as light absorption of molecules. In this study, we have used a de novo molecule generator (DNMG) coupled with quantum chemical computation (QC) to develop fluorescent molecules, which are garnering significant attention in various disciplines. Using massive parallel computation (1024 cores, 5 days), the DNMG has produced 3643 candidate molecules. We have selected an unreported molecule and seven reported molecules and synthesized them. Photoluminescence spectrum measurements demonstrated that the DNMG can successfully design fluorescent molecules with 75% accuracy (n = 6/8) and create an unreported molecule that emits fluorescence detectable by the naked eye.
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Affiliation(s)
- Masato Sumita
- RIKEN Center for Advanced Intelligence Project, 1-4-1 Nihonbashi, Chuo-ku, Tokyo 103-0027, Japan
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Kei Terayama
- RIKEN Center for Advanced Intelligence Project, 1-4-1 Nihonbashi, Chuo-ku, Tokyo 103-0027, Japan
- Graduate School of Medical Life Science, Yokohama City University, 1-7-29, Suehiro-cho, Tsurumi-ku, Kanagawa 230-0045, Japan
- Graduate School of Medicine, Kyoto University, 53 Shogoin-Kawaharacho, Sakyo-ku, Kyoto 606-8507, Japan
- Medical Sciences Innovation Hub Program, RIKEN Cluster for Science, Technology and Innovation Hub, Tsurumi-ku, Kanagawa 230-0045, Japan
| | - Naoya Suzuki
- Materials Science and Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Shinsuke Ishihara
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Ryo Tamura
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Research and Services Division of Materials Data and Integrated System, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwa-no-ha, Kashiwa, Chiba 277-8561, Japan
| | - Mandeep K. Chahal
- Department of Chemistry, University of Southampton, University Road, Highfield, Southampton SO17 1BJ, UK
| | - Daniel T. Payne
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- International Center for Young Scientists (ICYS), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Kazuki Yoshizoe
- RIKEN Center for Advanced Intelligence Project, 1-4-1 Nihonbashi, Chuo-ku, Tokyo 103-0027, Japan
- Research Institute for Information Technology (RIIT), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka City, Fukuoka 819-0395, Japan
| | - Koji Tsuda
- RIKEN Center for Advanced Intelligence Project, 1-4-1 Nihonbashi, Chuo-ku, Tokyo 103-0027, Japan
- Research and Services Division of Materials Data and Integrated System, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwa-no-ha, Kashiwa, Chiba 277-8561, Japan
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13
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Stefanello FS, Kappenberg YG, Araújo JN, Franceschini SZ, Martins MA, Zanatta N, Iglesias BA, Bonacorso HG. Trifluoromethyl-substituted aryldiazenyl-pyrazolo[1,5-a]pyrimidin-2-amines: Regioselective synthesis, structure, and optical properties. J Fluor Chem 2022. [DOI: 10.1016/j.jfluchem.2022.109967] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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14
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Ortiz PD, Castillo-Rodriguez J, Tapia J, Zarate X, Vallejos GA, Roa V, Molins E, Bustos C, Schott E. A novel series of pyrazole derivatives toward biological applications: experimental and conceptual DFT characterization. Mol Divers 2021; 26:2443-2457. [PMID: 34724138 DOI: 10.1007/s11030-021-10342-z] [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: 07/31/2021] [Accepted: 10/11/2021] [Indexed: 11/26/2022]
Abstract
A new series of 13 pyrazole-derivative compounds with potential antifungal activity were synthetized with good yields. The series have the (E)-2-((1-(R)-3,5-dimethyl-1H-pyrazol-4-yl)diazenyl)phenol general structure and were characterized by means of X-ray diffraction, UV-Vis, FTIR, 1H-NMR, 13C-NMR, and two-dimensional NMR experiments. This experimental characterization was complemented by DFT simulations. A deep insight regarding molecular reactivity was accomplished employing a conceptual DFT approach. In this sense, dual descriptors were calculated at HF and DFT level of theory and GGV spin-density Fukui functions. The main reactive region within the molecules was mapped through isosurface and condensed representations. Finally, chemical descriptors that have previously shown to be close related to biological activity were compared within the series. Thus, higher values of chemical potential ω and electrophilicity χ obtained for compounds 10, 9, 8, 6 and 7, in this order, suggest that these molecules are the better candidates as biological agents.
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Affiliation(s)
- Pedro D Ortiz
- Instituto de Ciencias Químicas Aplicadas, Facultad de Ingeniería, Universidad Autónoma de Chile, Llano Subercaseaux, 2801, Santiago, Chile
| | - Judith Castillo-Rodriguez
- Departamento de Química Inorgánica, Facultad de Química y Farmacia, Centro de Energía UC, Centro de Investigación en Nanotecnología y Materiales Avanzados CIEN-UC, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna, 4860, Santiago, Chile
| | - Jorge Tapia
- Departamento de Ciencias Quı́micas y Biológicas, Universidad Bernardo O'Higgins, Facultad de Salud, General Gana, 1702, Santiago, Chile
| | - Ximena Zarate
- Instituto de Ciencias Químicas Aplicadas, Facultad de Ingeniería, Universidad Autónoma de Chile, Llano Subercaseaux, 2801, Santiago, Chile.
| | - Gabriel A Vallejos
- Instituto de Ciencias Químicas, Universidad Austral de Chile, Las Encinas 220, Campus Isla Teja, Valdivia, Chile
| | - Vanesa Roa
- Departamento de Química Inorgánica, Facultad de Química y Farmacia, Centro de Energía UC, Centro de Investigación en Nanotecnología y Materiales Avanzados CIEN-UC, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna, 4860, Santiago, Chile
| | - Elies Molins
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193, Bellaterra, Spain
| | - Carlos Bustos
- Instituto de Ciencias Químicas, Universidad Austral de Chile, Las Encinas 220, Campus Isla Teja, Valdivia, Chile
| | - Eduardo Schott
- Departamento de Química Inorgánica, Facultad de Química y Farmacia, Centro de Energía UC, Centro de Investigación en Nanotecnología y Materiales Avanzados CIEN-UC, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna, 4860, Santiago, Chile.
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15
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Lyapustin DN, Ulomsky EN, Balyakin IA, Shchepochkin AV, Rusinov VL, Chupakhin ON. Oxidative Aromatization of 4,7-Dihydro-6-nitroazolo[1,5-a]pyrimidines: Synthetic Possibilities and Limitations, Mechanism of Destruction, and the Theoretical and Experimental Substantiation. Molecules 2021; 26:4719. [PMID: 34443304 PMCID: PMC8401470 DOI: 10.3390/molecules26164719] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 07/30/2021] [Accepted: 08/02/2021] [Indexed: 11/16/2022] Open
Abstract
The reaction tolerance of the multicomponent process between 3-aminoazoles, 1-morpholino-2-nitroalkenes, and aldehydes was studied. The main patterns of this reaction have been established. Conditions for the oxidation of 4,7-dihydro-6-nitroazolo[1,5-a]pyrimidines were selected. Previous claims that the 4,7-dihydro-6-nitroazolo[1,5-a]pyrimidines could not be aromatised have now been refuted. Compounds with an electron-donor substituent at position seven undergo decomposition during oxidation. The phenomenon was explained based on experimental data, electro-chemical experiment, and quantum-chemical calculation. The mechanism of oxidative degradation has been proposed.
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Affiliation(s)
- Daniil N. Lyapustin
- Department of Organic and Biomolecular Chemistry, Ural Federal University, Mira St. 19, 620002 Ekaterinburg, Russia; (D.N.L.); (E.N.U.); (O.N.C.)
| | - Evgeny N. Ulomsky
- Department of Organic and Biomolecular Chemistry, Ural Federal University, Mira St. 19, 620002 Ekaterinburg, Russia; (D.N.L.); (E.N.U.); (O.N.C.)
- Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskaya Str., 22, 620041 Ekaterinburg, Russia;
| | - Ilya A. Balyakin
- NANOTECH Centre, Ural Federal University, 620002 Ekaterinburg, Russia;
- Institute of Metallurgy, Ural Branch of the Russian Academy of Sciences, 620016 Ekaterinburg, Russia
| | - Alexander V. Shchepochkin
- Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskaya Str., 22, 620041 Ekaterinburg, Russia;
| | - Vladimir L. Rusinov
- Department of Organic and Biomolecular Chemistry, Ural Federal University, Mira St. 19, 620002 Ekaterinburg, Russia; (D.N.L.); (E.N.U.); (O.N.C.)
- Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskaya Str., 22, 620041 Ekaterinburg, Russia;
| | - Oleg N. Chupakhin
- Department of Organic and Biomolecular Chemistry, Ural Federal University, Mira St. 19, 620002 Ekaterinburg, Russia; (D.N.L.); (E.N.U.); (O.N.C.)
- Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskaya Str., 22, 620041 Ekaterinburg, Russia;
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16
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Arias-Gómez A, Godoy A, Portilla J. Functional Pyrazolo[1,5- a]pyrimidines: Current Approaches in Synthetic Transformations and Uses As an Antitumor Scaffold. Molecules 2021; 26:2708. [PMID: 34063043 PMCID: PMC8125733 DOI: 10.3390/molecules26092708] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/26/2021] [Accepted: 04/27/2021] [Indexed: 12/29/2022] Open
Abstract
Pyrazolo[1,5-a]pyrimidine (PP) derivatives are an enormous family of N-heterocyclic compounds that possess a high impact in medicinal chemistry and have attracted a great deal of attention in material science recently due to their significant photophysical properties. Consequently, various researchers have developed different synthesis pathways for the preparation and post-functionalization of this functional scaffold. These transformations improve the structural diversity and allow a synergic effect between new synthetic routes and the possible applications of these compounds. This contribution focuses on an overview of the current advances (2015-2021) in the synthesis and functionalization of diverse pyrazolo[1,5-a]pyrimidines. Moreover, the discussion highlights their anticancer potential and enzymatic inhibitory activity, which hopefully could lead to new rational and efficient designs of drugs bearing the pyrazolo[1,5-a]pyrimidine core.
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Affiliation(s)
| | | | - Jaime Portilla
- Bioorganic Compounds Research Group, Department of Chemistry, Universidad de los Andes, Carrera 1 No. 18A-10, Bogotá 111711, Colombia; (A.A.-G.); (A.G.)
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17
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Augmentation of steroidal β-formylenamide with pyrazolo and benzimidazo moieties: A tandem approach to highly fluorescent steroidal heterocycles. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152893] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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