1
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Ucar S, Dastan A. Transition Metal‐Free Synthesis of 4‐Alkynylquinazolines. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200131] [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)
- Sefa Ucar
- Atatürk Üniversitesi: Ataturk Universitesi Chemistry TURKEY
| | - Arif Dastan
- Ataturk University Chemistry Faculty of ScienceNot Available 25240 Erzurum TURKEY
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2
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Dilebo KB, Gumede NJ, Nxumalo W, Matsebatlela TM, Mangokoana D, Moraone NR, Omondi B, Mampa RM. Synthesis, in vitro cytotoxic, anti-Mycobacterium tuberculosis and molecular docking studies of 4-pyridylamino- and 4-(ethynylpyridine)quinazolines. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130824] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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3
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Motoyama M, Doan TH, Hibner-Kulicka P, Otake R, Lukarska M, Lohier JF, Ozawa K, Nanbu S, Alayrac C, Suzuki Y, Witulski B. Synthesis and Structure-Photophysics Evaluation of 2-N-Amino-quinazolines: Small Molecule Fluorophores for Solution and Solid State. Chem Asian J 2021; 16:2087-2099. [PMID: 34107175 DOI: 10.1002/asia.202100534] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/08/2021] [Indexed: 11/12/2022]
Abstract
2-N-aminoquinazolines were prepared by consecutive SN Ar functionalization. X-ray structures display the nitrogen lone pair of the 2-N-morpholino group in conjugation with the electron deficient quinazoline core and thus representing electronic push-pull systems. 2-N-aminoquinazolines show a positive solvatochromism and are fluorescent in solution and in solid state with quantum yields up to 0.73. Increase in electron donor strength of the 2-amino substituent causes a red-shift of the intramolecular charge transfer (ICT) band (300-400 nm); whereas the photoluminescence emission maxima (350-450 nm) is also red-shifted significantly along with an enhancement in photoluminescence efficiency. HOMO-LUMO energies were estimated by a combination of electrochemical and photophysical methods and correlate well to those obtained by computational methods. ICT properties are theoretically attributed to an excitation to Rydberg-MO in SAC-CI method, which can be interpreted as n-π* excitation. 7-Amino-2-N-morpholino-4-methoxyquinazoline responds to acidic conditions with significant increases in photoluminescence intensity revealing a new turn-on/off fluorescence probe.
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Affiliation(s)
- Miho Motoyama
- Department of Life and Material Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioicho, Chiyodaku, 102-8554, Tokyo, Japan
| | - Thu-Hong Doan
- Laboratoire de Chimie Moléculaire et Thio-organique, CNRS UMR 6507, ENSICAEN & UNICAEN, Normandie Univ., 6 Bvd Maréchal Juin, 14050, Caen, France
| | - Paulina Hibner-Kulicka
- Laboratoire de Chimie Moléculaire et Thio-organique, CNRS UMR 6507, ENSICAEN & UNICAEN, Normandie Univ., 6 Bvd Maréchal Juin, 14050, Caen, France
| | - Ryo Otake
- Department of Life and Material Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioicho, Chiyodaku, 102-8554, Tokyo, Japan
| | - Malgorzata Lukarska
- Laboratoire de Chimie Moléculaire et Thio-organique, CNRS UMR 6507, ENSICAEN & UNICAEN, Normandie Univ., 6 Bvd Maréchal Juin, 14050, Caen, France
| | - Jean-Francois Lohier
- Laboratoire de Chimie Moléculaire et Thio-organique, CNRS UMR 6507, ENSICAEN & UNICAEN, Normandie Univ., 6 Bvd Maréchal Juin, 14050, Caen, France
| | - Kota Ozawa
- Department of Life and Material Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioicho, Chiyodaku, 102-8554, Tokyo, Japan
| | - Shinkoh Nanbu
- Department of Life and Material Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioicho, Chiyodaku, 102-8554, Tokyo, Japan
| | - Carole Alayrac
- Laboratoire de Chimie Moléculaire et Thio-organique, CNRS UMR 6507, ENSICAEN & UNICAEN, Normandie Univ., 6 Bvd Maréchal Juin, 14050, Caen, France
| | - Yumiko Suzuki
- Department of Life and Material Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioicho, Chiyodaku, 102-8554, Tokyo, Japan
| | - Bernhard Witulski
- Laboratoire de Chimie Moléculaire et Thio-organique, CNRS UMR 6507, ENSICAEN & UNICAEN, Normandie Univ., 6 Bvd Maréchal Juin, 14050, Caen, France
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4
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Nosova EV, Achelle S, Lipunova GN, Charushin VN, Chupakhin ON. Functionalized benzazines as luminescent materials and components for optoelectronics. RUSSIAN CHEMICAL REVIEWS 2019. [DOI: 10.1070/rcr4887] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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5
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Yuan WK, Sun SZ, Zhang LB, Wen LR, Li M. A concise construction of 4-alkynylquinazolines via [4 + 2] annulation of 4-alkynylbenzoxazinanones with acylhydroxamates under transition-metal-free conditions. Org Chem Front 2019. [DOI: 10.1039/c9qo00668k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A concise and highly efficient method for the construction of valuable 4-alkynylquinazolines under transition-metal-free conditions was developed via [4 + 2] annulation of 4-alkynylbenzoxazinanones with acylhydroxamates in good to excellent yields.
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Affiliation(s)
- Wen-Kui Yuan
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Sheng-Zheng Sun
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Lin-Bao Zhang
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Ming Li
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
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6
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Achelle S, Rodríguez-López J, Guen FRL. Photoluminescence Properties of Aryl-, Arylvinyl-, and Arylethynylpyrimidine Derivatives. ChemistrySelect 2018. [DOI: 10.1002/slct.201702472] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Sylvain Achelle
- Univ Rennes, CNRS; Institut des Sciences Chimiques de Rennes -UMR6226, F; 35000 Rennes France
| | - Julián Rodríguez-López
- Facultad de Ciencias y Tecnologías Químicas; Universidad de Castilla-La Mancha; Avda. Camilo José Cela 10 13071 Ciudad Real Spain
| | - Françoise Robin-le Guen
- Univ Rennes, CNRS; Institut des Sciences Chimiques de Rennes -UMR6226, F; 35000 Rennes France
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7
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Nosova EV, Moshkina TN, Lipunova GN, Kelbysheva ES, Loim NM, Slepukhin PA, Charushin VN, Baklanova IV. Synthesis and photophysical studies of novel 4-aryl substituted 2-phenyl-, 2-(fluoren-2-yl)- and 2-cymantrenylquinazolines. MENDELEEV COMMUNICATIONS 2018. [DOI: 10.1016/j.mencom.2018.01.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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8
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Synthesis and photophysical studies of novel 2-[5-(4-diethylaminophenyl)thiophen-2-yl]quinazoline derivatives. MENDELEEV COMMUNICATIONS 2018. [DOI: 10.1016/j.mencom.2018.01.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Synthesis and In Vitro Cytotoxic Properties of Polycarbo-Substituted 4-(Arylamino)quinazolines. Molecules 2016; 21:molecules21101366. [PMID: 27754446 PMCID: PMC6274161 DOI: 10.3390/molecules21101366] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 09/30/2016] [Accepted: 10/06/2016] [Indexed: 11/29/2022] Open
Abstract
Herein, we describe the synthesis of novel unsymmetrical polycarbo-substituted 4-anilinoquinazolines derived from the 2-aryl-6-bromo-8-iodoquinazolines via one-pot three-step reaction sequences involving initial amination and subsequent double cross-coupling (bis-Suzuki, Sonogashira/Stille or Sonogashira/Suzuki-Miyaura) reactions with different cross coupling partners for the two carbon–carbon bond formation steps. The 4-anilinoquinazolines were evaluated for potential cytotoxicity against three cancer cell lines, namely, human breast adenocarcinoma (MCF-7) cells, human cervical cancer (HeLa) and human lung cancer (A549) cells. The most active compounds, 2b, 2c, 3c, 4a, 4c and 5a, were found to be more selective against the MCF-7 and HeLa cell lines than the human lung carcinoma (A549) cells. We selected compounds 2c, 3c and 7a as representatives for further evaluation for potential to induce apoptosis and/or necrotic properties in the three cancer cell lines. Compound 2c induced apoptosis of MCF-7 cells through cell membrane alteration. Treatment of Hela and A549 cell lines with compounds 3c and 7a, respectively, led to caspase-3 activation in both cell lines. Compound 3c, on the other hand, caused more necrosis than apoptosis induction in the membrane alteration assay.
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10
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Nosova EV, Moshkina TN, Lipunova GN, Kopchuk DS, Slepukhin PA, Baklanova IV, Charushin VN. Synthesis and Photophysical Studies of 2-(Thiophen-2-yl)-4-(morpholin-4-yl)quinazoline Derivatives. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600404] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Emiliya V. Nosova
- Department of Organic and Biomolecular Chemistry; Ural Federal University; Mira st. 19 620002 Ekaterinburg Russian Federation
- I. Ya. Postovsky Institute of Organic Synthesis; Ural Branch of the Russian Academy of Sciences; S. Kovalevskoy st. 22/Akademicheskaya st., 20 620137 Ekaterinburg Russian Federation
| | - Tatyana N. Moshkina
- Department of Organic and Biomolecular Chemistry; Ural Federal University; Mira st. 19 620002 Ekaterinburg Russian Federation
| | - Galina N. Lipunova
- I. Ya. Postovsky Institute of Organic Synthesis; Ural Branch of the Russian Academy of Sciences; S. Kovalevskoy st. 22/Akademicheskaya st., 20 620137 Ekaterinburg Russian Federation
| | - Dmitry S. Kopchuk
- Department of Organic and Biomolecular Chemistry; Ural Federal University; Mira st. 19 620002 Ekaterinburg Russian Federation
- I. Ya. Postovsky Institute of Organic Synthesis; Ural Branch of the Russian Academy of Sciences; S. Kovalevskoy st. 22/Akademicheskaya st., 20 620137 Ekaterinburg Russian Federation
| | - Pavel A. Slepukhin
- Department of Organic and Biomolecular Chemistry; Ural Federal University; Mira st. 19 620002 Ekaterinburg Russian Federation
- I. Ya. Postovsky Institute of Organic Synthesis; Ural Branch of the Russian Academy of Sciences; S. Kovalevskoy st. 22/Akademicheskaya st., 20 620137 Ekaterinburg Russian Federation
| | - Inna V. Baklanova
- Institute of Solid State Chemistry; Ural Branch of the Russian Academy of Sciences; Pervomaiskaya st. 91 620990 Ekaterinburg Russian Federation
| | - Valery N. Charushin
- Department of Organic and Biomolecular Chemistry; Ural Federal University; Mira st. 19 620002 Ekaterinburg Russian Federation
- I. Ya. Postovsky Institute of Organic Synthesis; Ural Branch of the Russian Academy of Sciences; S. Kovalevskoy st. 22/Akademicheskaya st., 20 620137 Ekaterinburg Russian Federation
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11
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Wang X, Lerchen A, Glorius F. A Comparative Investigation: Group 9 Cp*M(III)-Catalyzed Formal [4 + 2] Cycloaddition as an Atom-Economic Approach to Quinazolines. Org Lett 2016; 18:2090-3. [DOI: 10.1021/acs.orglett.6b00716] [Citation(s) in RCA: 131] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xiaoming Wang
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Andreas Lerchen
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
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12
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Synthesis, photophysical properties and DFT study of novel polycarbo-substituted quinazolines derived from the 2-aryl-6-bromo-4-chloro-8-iodoquinazolines. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.11.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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Mphahlele MJ, Paumo HK, Rhyman L, Ramasami P. Synthesis and Photophysical Properties of Polycarbo-Substituted Quinazolines Derived from the 2-Aryl-4-chloro-6-iodoquinazolines. Molecules 2015; 20:14656-83. [PMID: 26287133 PMCID: PMC6332403 DOI: 10.3390/molecules200814656] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 08/03/2015] [Accepted: 08/07/2015] [Indexed: 11/16/2022] Open
Abstract
The reactivity of the 2-aryl-4-chloro-6-iodoquinazolines towards palladium catalyzed sequential (Sonogashira/Suzuki-Miyaura) and one-pot two-step cross-coupling (bis-Sonogashira, and successive Sonogashira/Stille) reactions to afford novel unsymmetrical polycarbo-substituted quinazolines has been evaluated. In contrast to the chloro-bromo substituted quinazolines in which selectivity has been previously found to generally favor substitution at the more activated C(4)-Cl bond over the weaker Csp2-Br bond, substitution in the case of the chloro-iodo derivatives favors cross-coupling through the intrinsically more reactive Csp2-I bond. The electronic absorption and emission properties of the prepared 2,3-diaryl-6-(phenylethynyl)quinazolines were studied in solvents of different polarity (dichloromethane, toluene, DMF, methanol) and CH2Cl2-TFA mixture using UV-Vis and emission spectroscopic techniques complemented with density functional theory method to establish the effect of substituents on intramolecular charge transfer properties.
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Affiliation(s)
- Malose Jack Mphahlele
- Department of Chemistry, College of Science, Engineering and Technology, University of South Africa, P.O. Box 392, Pretoria 0003, South Africa.
| | - Hugues Kamdem Paumo
- Department of Chemistry, College of Science, Engineering and Technology, University of South Africa, P.O. Box 392, Pretoria 0003, South Africa.
| | - Lydia Rhyman
- Computational Chemistry Group, Department of Chemistry, Faculty of Science, University of Mauritius, Réduit 80837, Mauritius.
| | - Ponnadurai Ramasami
- Computational Chemistry Group, Department of Chemistry, Faculty of Science, University of Mauritius, Réduit 80837, Mauritius.
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14
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Design, synthesis of novel quinazolin-4-one derivatives and biological evaluation against human MCF-7 breast cancer cell line. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-015-2117-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Nagasawa Y, Matsusaki Y, Nobuta T, Tada N, Miura T, Itoh A. Aerobic photooxidative synthesis of 2-aryl-4-quinazolinones from aromatic aldehydes and aminobenzamide using catalytic amounts of molecular iodine. RSC Adv 2015. [DOI: 10.1039/c5ra07275a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study reports a safe, mild, and environmentally benign synthetic method toward 2-aryl-4-quinazolinones through a cyclization–oxidation sequence using a catalytic amount of iodine, harmless visible light irradiation, and molecular oxygen.
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Affiliation(s)
- Y. Nagasawa
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - Y. Matsusaki
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - T. Nobuta
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - N. Tada
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - T. Miura
- Tokyo University of Pharmacy and Life Sciences
- Tokyo 192-0392
- Japan
| | - A. Itoh
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
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16
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Khan I, Ibrar A, Ahmed W, Saeed A. Synthetic approaches, functionalization and therapeutic potential of quinazoline and quinazolinone skeletons: the advances continue. Eur J Med Chem 2014; 90:124-69. [PMID: 25461317 DOI: 10.1016/j.ejmech.2014.10.084] [Citation(s) in RCA: 263] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 10/10/2014] [Accepted: 10/31/2014] [Indexed: 12/18/2022]
Abstract
The presence of N-heterocycles as an essential structural motif in a variety of biologically active substances has stimulated the development of new strategies and technologies for their synthesis. Among the various N-heterocyclic scaffolds, quinazolines and quinazolinones form a privileged class of compounds with their diverse spectrum of therapeutic potential. The easy generation of complex molecular diversity through broadly applicable, cost-effective, practical and sustainable synthetic methods in a straightforward fashion along with the importance of these motifs in medicinal chemistry, received significant attention from researchers engaged in drug design and heterocyclic methodology development. In this perspective, the current review article is an effort to recapitulate recent developments in the eco-friendly and green procedures for the construction of highly challenging and potentially bioactive quinazoline and quinazolinone compounds in order to help medicinal chemists in designing and synthesizing novel and potent compounds for the treatment of different disorders. The key mechanistic insights for the synthesis of these heterocycles along with potential applications and manipulations of the products have also been conferred. This article also aims to highlight the promising future directions for the easy access to these frameworks in addition to the identification of more potent and specific products for numerous biological targets.
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Affiliation(s)
- Imtiaz Khan
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Aliya Ibrar
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Waqas Ahmed
- Office of Research, Innovation and Commercialization, University of Gujrat, Gujrat 50700, Pakistan
| | - Aamer Saeed
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan.
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17
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Advances in metal-catalyzed cross-coupling reactions of halogenated quinazolinones and their quinazoline derivatives. Molecules 2014; 19:17435-63. [PMID: 25356566 PMCID: PMC6270716 DOI: 10.3390/molecules191117435] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 10/10/2014] [Accepted: 10/21/2014] [Indexed: 12/05/2022] Open
Abstract
Halogenated quinazolinones and quinazolines are versatile synthetic intermediates for the metal-catalyzed carbon–carbon bond formation reactions such as the Kumada, Stille, Negishi, Sonogashira, Suzuki-Miyaura and Heck cross-coupling reactions or carbon-heteroatom bond formation via the Buchwald-Hartwig cross-coupling to yield novel polysubstituted derivatives. This review presents an overview of the application of these methods on halogenated quinazolin-4-ones and their quinazolines to generate novel polysubstituted derivatives.
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18
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Achelle S, Rodrı́guez-López J, Robin-le Guen F. Synthesis and Photophysical Studies of a Series of Quinazoline Chromophores. J Org Chem 2014; 79:7564-71. [DOI: 10.1021/jo501305h] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Sylvain Achelle
- Institut
des Sciences Chimiques de Rennes UMR CNRS 6226, IUT de Lannion, rue Edouard Branly,
BP 30219, F22302 Lannion Cedex, France
| | - Julián Rodrı́guez-López
- Facultad
de Ciencias y Tecnologı́as Quı́micas, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Françoise Robin-le Guen
- Institut
des Sciences Chimiques de Rennes UMR CNRS 6226, IUT de Lannion, rue Edouard Branly,
BP 30219, F22302 Lannion Cedex, France
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Mmonwa MM, Mphahlele MJ, El-Hendawy MM, El-Nahas AM, Koga N. Synthesis and photophysical properties of the 2-(3-(2-Alkyl-6,8-diaryl-4-oxo-1,2,3,4-tetrahydroquinazolin-2-yl)propyl)-6,8-diarylquinazolin-4(3H)-ones. Molecules 2014; 19:9712-35. [PMID: 25006782 PMCID: PMC6271187 DOI: 10.3390/molecules19079712] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 06/30/2014] [Accepted: 07/01/2014] [Indexed: 11/16/2022] Open
Abstract
Iodine-catalyzed condensation of 2-amino-3,5-dibromobenzamide with cyclohexane-1,3-dione derivatives in refluxing toluene afforded the corresponding bisquinazolinones. Suzuki-Miyaura cross-coupling of the latter with arylboronic acids afforded tetraarylbisquinazolinones. The electronic absorption and emission properties of these tetraarylbisquinazolinones were measured in dimethylsulfoxide (DMSO) and acetic acid by means of UV-Vis and fluorescence spectroscopic techniques in conjunction with quantum chemical methods to understand the influence of substituents on intramolecular charge transfer (ICT).
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Affiliation(s)
- Mmakwena M Mmonwa
- Department of Chemistry, College of Science, Engineering and Technology, University of South Africa, P.O. Box 392, Pretoria 0003, South Africa.
| | - Malose J Mphahlele
- Department of Chemistry, College of Science, Engineering and Technology, University of South Africa, P.O. Box 392, Pretoria 0003, South Africa.
| | - Morad M El-Hendawy
- Chemistry Department, Faculty of Science, Kafrelsheikh University, Kafrelsheikh 33516, Egypt.
| | - Ahmed M El-Nahas
- Chemistry Department, Faculty of Science, El-Menoufia University, Shebin El-Kom 32512, Egypt.
| | - Nobuaki Koga
- Graduate School of Information Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan.
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