1
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Yadav N, Saquib M, Arya KK, Hussain MK. A Versatile New Approach to Bridgehead Nitrogen Bearing Benzimidazolo-Quinazoline Hybrids: Facile 1,4-Dipolar Cycloaddition of Benzyne and N-(1 H-Benzo[ d]Imidazol-2-yl)-1-Phenylmethanimines. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2105907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Nisha Yadav
- Department of Chemistry, Dayanand Arya Kanya Degree College Moradabad (M.J.P. Rohilkhand University), Bareilly, India
| | - Mohammad Saquib
- Department of Chemistry, University of Allahabad, Prayagraj (Allahabad), India
| | - Krishan Kumar Arya
- Department of Chemistry, Government Model Degree College, Arniya, Bulandshahar, India
| | - Mohd Kamil Hussain
- Department of Chemistry, Government Raza P.G. College (M.J.P. Rohilkhand University), Rampur, India
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2
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Zaib S, Khan I. Recent Advances in the Sustainable Synthesis of Quinazolines Using Earth-Abundant First Row Transition Metals. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824999200726230848] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Achieving challenging molecular diversity in contemporary chemical synthesis
remains a formidable hurdle, particularly in the delivery of diversified bioactive heterocyclic
pharmacophores for drug design and pharmaceutical applications. The coupling methods that
combine a diverse range of readily accessible and commercially available pools of substrates
under the action of earth-abundant first row transition metal catalysts have certainly matured
into powerful tools, thus offering sustainable alternatives to revolutionize the organic synthesis.
This minireview highlights the successful utilization of the catalytic ability of the first
row transition metals (Mn, Fe, Ni, Cu) in the modular assembly of quinazoline heterocycle,
ubiquitously present in numerous alkaloids, commercial medicines and is associated with a
diverse range of pharmacological activities. The broad substrate scope and high functional group tolerance of the
targeted methods were extensively explored, identifying the future strategic advances in the field. The investigation
will also be exemplified with mechanistic studies as long as they are deemed necessary.
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Affiliation(s)
- Sumera Zaib
- Department of Biochemistry, Faculty of Life Sciences, University of Central Punjab, Lahore, Pakistan
| | - Imtiaz Khan
- Department of Chemistry, School of Natural Sciences, The University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
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3
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Salem MS, Al‐Mabrook SAM, El‐Hashash MAEM. Synthesis and antiproliferative evaluation of some novel quinazolin‐4(
3
H
)‐one derivatives. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4096] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Marwa Sayed Salem
- Chemistry Department, Faculty of Science Ain Shams University Cairo Egypt
| | - Selima Ali Mohamed Al‐Mabrook
- Chemistry Department, Faculty of Science Ain Shams University Cairo Egypt
- Chemistry Department Faculty of Science, El‐Margeb University Al Khums Libya
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4
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Bose DS, Ramesh N. A convenient access to 2,4-disubstituted quinazolines via one-pot three-component reaction under mild conditions †. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1744014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- D. Subhas Bose
- Organic and Biomolecular Chemistry Division, Department of Energy and Environmental Engineering, Fine Chemicals Lab, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Nukala Ramesh
- Organic and Biomolecular Chemistry Division, Department of Energy and Environmental Engineering, Fine Chemicals Lab, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
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5
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Guo X, Hu J, Zhang M, Wang L. Palladium-Catalyzed C(sp
2
)−H Activation for the Formation of C−N Bonds: Rapid Access to Benzimidazoquinazolines. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201800710] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Xiaolong Guo
- Department of Chemistry; Capital Normal University; Beijing 100048 China
| | - Jing Hu
- Department of Chemistry; Capital Normal University; Beijing 100048 China
| | - Mengmeng Zhang
- Department of Chemistry; Capital Normal University; Beijing 100048 China
| | - Luyao Wang
- Department of Chemistry; Capital Normal University; Beijing 100048 China
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6
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Design, synthesis and evaluation of novel hybrids between 4-anilinoquinazolines and substituted triazoles as potent cytotoxic agents. Bioorg Med Chem Lett 2018; 28:3741-3747. [DOI: 10.1016/j.bmcl.2018.10.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 10/09/2018] [Accepted: 10/10/2018] [Indexed: 01/08/2023]
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7
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Synthesis and Reactions of Some New Quinazoline Derivatives for In VitroEvaluation as Anticancer and Antimicrobial Agents. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3248] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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8
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Wang C, Li Y, Wu Y, Wang Q, Shi W, Yuan C, Zhou L, Xiao Y, Guo H. Enantioselective Construction of Tetrahydroquinazoline Motifs via Palladium-Catalyzed [4 + 2] Cycloaddition of Vinyl Benzoxazinones with Sulfamate-Derived Cyclic Imines. Org Lett 2018; 20:2880-2883. [DOI: 10.1021/acs.orglett.8b00905] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Chang Wang
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Yan Li
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Yang Wu
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Qijun Wang
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Wangyu Shi
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Chunhao Yuan
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Leijie Zhou
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Yumei Xiao
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Hongchao Guo
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
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9
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Keivanloo A, Soozani A, Bakherad M, Amin AH. A one-pot synthetic approach for the construction of a thiazolo[3,2-a]benzimidazole-linked quinazoline scaffoldviapalladium-catalyzed reactions. Org Chem Front 2018. [DOI: 10.1039/c7qo00751e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
4-(2-Substituted-[1,3]thiazolo[3,2-a]benzimidazol-3-yl)quinazolin-2-amines were prepared by the reaction of 2,4-dichloroquinazoline, terminal alkynes, secondary amines, and 1H-benzo[d]imidazole-2(3H)-thione in the presence of palladium catalyst.
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Affiliation(s)
- Ali Keivanloo
- School of Chemistry
- Shahrood University of Technology
- Shahrood 36199-95161
- Iran
| | - Atena Soozani
- School of Chemistry
- Shahrood University of Technology
- Shahrood 36199-95161
- Iran
| | - Mohammad Bakherad
- School of Chemistry
- Shahrood University of Technology
- Shahrood 36199-95161
- Iran
| | - Amir Hossein Amin
- School of Chemistry
- Shahrood University of Technology
- Shahrood 36199-95161
- Iran
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10
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Gautam D, Gautam P, Chaudhary R. Spectral, DFT and X-ray diffraction studies on regioselective synthesis of thiazolo-quinazoline system. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.05.109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Srishyalam V, Devanna N, Basaveswara Rao M, Mulakayala N. Novel one pot synthesis of substituted quinazolin-4(3 H )-ones and pyrazolo[4,3- d ]pyrimidin-7(6 H )-ones using copper iodide, azides and terminal alkynes. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.06.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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12
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Hudwekar AD, Reddy GL, Verma PK, Gupta S, Vishwakarma RA, Sawant SD. Transition Metal-free Single Step Approach for Arylated Pyrazolopyrimidinones and Quinazolinones Using Benzylamines/Benzylalcohols/Benzaldehydes. ChemistrySelect 2017. [DOI: 10.1002/slct.201700896] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Abhinandan D. Hudwekar
- Medicinal Chemistry Division; CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu 180001 India
- Academy of Scientific and Innovative Research; New Delhi India, CSIR-IIIM Communication No: IIIM/2014/2017
| | - G. Lakshma Reddy
- Medicinal Chemistry Division; CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu 180001 India
- Academy of Scientific and Innovative Research; New Delhi India, CSIR-IIIM Communication No: IIIM/2014/2017
| | - Praveen K. Verma
- Medicinal Chemistry Division; CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu 180001 India
| | - Sorav Gupta
- Medicinal Chemistry Division; CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu 180001 India
- Academy of Scientific and Innovative Research; New Delhi India, CSIR-IIIM Communication No: IIIM/2014/2017
| | - Ram A. Vishwakarma
- Medicinal Chemistry Division; CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu 180001 India
| | - Sanghapal D. Sawant
- Medicinal Chemistry Division; CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu 180001 India
- Academy of Scientific and Innovative Research; New Delhi India, CSIR-IIIM Communication No: IIIM/2014/2017
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13
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Liu X, Qian P, Wang Y, Pan Y. Metal-free sequential decarbonylative annulation of N-cyanamides for the construction of 2,3-dihydropyrrolo[2,1-b]quinazolin-9(1H)-ones. Org Chem Front 2017. [DOI: 10.1039/c7qo00677b] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A convenient metal-free sequential decarbonylative annulation of unactivated alkenes for the construction of quinazolinones and dihydroisoquinolinones has been developed.
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Affiliation(s)
- Xueke Liu
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry & Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Ping Qian
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry & Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Yi Wang
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry & Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Yi Pan
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry & Chemical Engineering
- Nanjing University
- Nanjing
- China
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14
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Luo L, Zhao X, Zhang L, Yuan Y, Lü S, Jia X. An aerobic oxidative aza-[4+2] cycloaddition induced by radical cation salt: Synthesis of dihydroquinazoline derivatives. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.11.052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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15
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Duan T, Zhai T, Liu H, Yan Z, Zhao Y, Feng L, Ma C. One-pot three-component synthesis of quinazolines via a copper-catalysed oxidative amination reaction. Org Biomol Chem 2016; 14:6561-7. [DOI: 10.1039/c6ob00625f] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A copper-catalysed three-component reaction for constructing a series of quinazoline derivatives has been developed.
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Affiliation(s)
- Tiantian Duan
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
| | - Tianran Zhai
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
| | - Huanhuan Liu
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
| | - Zilong Yan
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
| | - Yue Zhao
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
| | - Lei Feng
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
| | - Chen Ma
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
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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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Huo C, Yuan Y, Wu M, Jia X, Wang X, Chen F, Tang J. Auto-Oxidative Coupling of Glycine Derivatives. Angew Chem Int Ed Engl 2014; 53:13544-7. [DOI: 10.1002/anie.201406905] [Citation(s) in RCA: 143] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 08/30/2014] [Indexed: 11/09/2022]
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18
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Huo C, Yuan Y, Wu M, Jia X, Wang X, Chen F, Tang J. Auto-Oxidative Coupling of Glycine Derivatives. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406905] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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19
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Li C, An S, Zhu Y, Zhang J, Kang Y, Liu P, Wang Y, Li J. Copper-catalyzed intermolecular cyclization of nitriles and 2-aminobenzylamine for 3,4-dihydroquinazolines and quinazolines synthesis via cascade coupling and aerobic oxidation. RSC Adv 2014. [DOI: 10.1039/c4ra09240f] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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20
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Khan I, Ibrar A, Abbas N, Saeed A. Recent advances in the structural library of functionalized quinazoline and quinazolinone scaffolds: Synthetic approaches and multifarious applications. Eur J Med Chem 2014; 76:193-244. [DOI: 10.1016/j.ejmech.2014.02.005] [Citation(s) in RCA: 264] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 02/04/2014] [Accepted: 02/06/2014] [Indexed: 01/14/2023]
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21
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Rohlmann R, Stopka T, Richter H, Garcı́a Mancheño O. Iron-Catalyzed Oxidative Tandem Reactions with TEMPO Oxoammonium Salts: Synthesis of Dihydroquinazolines and Quinolines. J Org Chem 2013; 78:6050-64. [DOI: 10.1021/jo4007199] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Renate Rohlmann
- Organisch-Chemisches
Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster,
Germany
| | - Tobias Stopka
- Organisch-Chemisches
Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster,
Germany
| | - Heinrich Richter
- Organisch-Chemisches
Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster,
Germany
| | - Olga Garcı́a Mancheño
- Organisch-Chemisches
Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster,
Germany
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22
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Lv Y, Li Y, Xiong T, Pu W, Zhang H, Sun K, Liu Q, Zhang Q. Copper-catalyzed annulation of amidines for quinazoline synthesis. Chem Commun (Camb) 2013; 49:6439-41. [DOI: 10.1039/c3cc43129k] [Citation(s) in RCA: 147] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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23
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Rong Qi Q, Guo Z, Yin P, He L. Synthesis of Novel 1-Alkyl-1,2-dihydro-2-Imino-4-quinazolinamines by Tandem Reaction of the Three Components. HETEROCYCLES 2013. [DOI: 10.3987/com-13-12711] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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24
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Fang J, Zhou J, Fang Z. Synthesis of 2-substituted quinazolinesvia iridium catalysis. RSC Adv 2013. [DOI: 10.1039/c2ra22278g] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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25
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Zhang H, Jin Y, Liu H, Jiang Y, Fu H. Copper-Catalyzed Cascade Synthesis of 1H-Indolo[1,2-c]quinazoline Derivatives. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200953] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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26
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Bandaru M, Sabbavarapu NM, Pavan AKBS, Akula AK, Durga NYV. Simple and straight forward synthesis of 2,4-disubstituted quinazolines in aqueous medium. ACTA ACUST UNITED AC 2012. [DOI: 10.5155/eurjchem.3.2.252-257.527] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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27
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Yang X, Jin Y, Liu H, Jiang Y, Fu H. Easy and efficient one-pot synthesis of pyrazolo[1,5-c]quinazolines under mild copper-catalyzed conditions. RSC Adv 2012. [DOI: 10.1039/c2ra21929h] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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28
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Han B, Yang XL, Wang C, Bai YW, Pan TC, Chen X, Yu W. CuCl/DABCO/4-HO-TEMPO-catalyzed aerobic oxidative synthesis of 2-substituted quinazolines and 4H-3,1-benzoxazines. J Org Chem 2011; 77:1136-42. [PMID: 22168403 DOI: 10.1021/jo2020399] [Citation(s) in RCA: 148] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The Cu/N-ligand/TEMPO catalytic system was first applied to the aerobic oxidative synthesis of heterocycles. As demonstrated, 2-substituted quinazolines and 4H-3,1-benzoxazines were synthesized efficiently from the one-pot reaction of aldehydes with 2-aminobenzylamines and 2-aminobenzyl alcohols, respectively, by employing CuCl/DABCO/4-HO-TEMPO as the catalysts and oxygen as the terminal oxidant.
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Affiliation(s)
- Bing Han
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Street, Lanzhou 730000, P. R. China.
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29
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Saffron extract and trans-crocetin inhibit glutamatergic synaptic transmission in rat cortical brain slices. Neuroscience 2011; 180:238-47. [PMID: 21352900 DOI: 10.1016/j.neuroscience.2011.02.037] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2010] [Revised: 01/26/2011] [Accepted: 02/15/2011] [Indexed: 11/24/2022]
Abstract
Saffron, the dried stigmata of Crocus sativus L., is used in traditional medicine for a wide range of indications including cramps, asthma, and depression. To investigate the influence of hydro-ethanolic saffron extract (CSE) and trans-crocetin on synaptic transmission, postsynaptic potentials (PSPs) were elicited by focal electrical stimulation and recorded using intracellular placed microelectrodes in pyramidal cells from rat cingulate cortex. CSE (10-200 μg/ml) inhibited evoked PSPs as well as the isolated NMDA and non-NMDA component of PSPs. Glutamate (500 μM) added into the organ bath induced membrane depolarization. CSE decreased glutamate-induced membrane depolarization. Additionally, CSE at 100 μg/ml decreased NMDA (20 μM) and kainate (1 μM)-induced depolarization, whereas AMPA (1 μM)-induced depolarization was not affected. Trans-crocetin (1-50 μM) showed inhibition of evoked PSPs and glutamate-induced membrane depolarization comparable to CSE. Trans-crocetin at 10 μM decreased NMDA (20 μM)-induced membrane depolarization, but did not inhibit the isolated non-NMDA component of PSPs. We conclude that trans-crocetin is involved in the antagonistic effect of CSE on NMDA but not on kainate receptors.
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30
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Xu S, Lu J, Fu H. Copper-catalyzed cascade synthesis of benzimidazoquinazoline derivatives under mild condition. Chem Commun (Camb) 2011; 47:5596-8. [DOI: 10.1039/c1cc10383k] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
An efficient copper-catalyzed cascade method has been developed for the synthesis of benzimidazoquinazoline derivatives via reactions of readily available substituted 2-(2-halophenyl)benzoimidazoles with amidines or guanidine under mild conditions (even at room temperature).
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Affiliation(s)
- Shan Xu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Juyou Lu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Hua Fu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
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Wang C, Li S, Liu H, Jiang Y, Fu H. Copper-Catalyzed Synthesis of Quinazoline Derivatives via Ullmann-Type Coupling and Aerobic Oxidation. J Org Chem 2010; 75:7936-8. [PMID: 20964407 DOI: 10.1021/jo101685d] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chen Wang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
| | - Shangfu Li
- Key Laboratory of Chemical Biology (Guangdong Province), Graduate School of Shenzhen, Tsinghua University, Shenzhen 518057, People's Republic of China
| | - Hongxia Liu
- Key Laboratory of Chemical Biology (Guangdong Province), Graduate School of Shenzhen, Tsinghua University, Shenzhen 518057, People's Republic of China
| | - Yuyang Jiang
- Key Laboratory of Chemical Biology (Guangdong Province), Graduate School of Shenzhen, Tsinghua University, Shenzhen 518057, People's Republic of China
| | - Hua Fu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
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Abstract
The study of the A(3) adenosine receptor (A(3)AR) represents a rapidly growing and intense area of research in the adenosine field. The present chapter will provide an overview of the expression patterns, molecular pharmacology and functional role of this A(3)AR subtype under pathophysiological conditions. Through studies utilizing selective A(3)AR agonists and antagonists, or A(3)AR knockout mice, it is now clear that this receptor plays a critical role in the modulation of ischemic diseases as well as in inflammatory and autoimmune pathologies. Therefore, the potential therapeutic use of agonists and antagonists will also be described. The discussion will principally address the use of such compounds in the treatment of brain and heart ischemia, asthma, sepsis and glaucoma. The final part concentrates on the molecular basis of A(3)ARs in autoimmune diseases such as rheumatoid arthritis, and includes a description of clinical trials with the selective agonist CF101. Based on this chapter, it is evident that continued research to discover agonists and antagonists for the A(3)AR subtype is warranted.
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Huang C, Fu Y, Fu H, Jiang Y, Zhao Y. Highly efficient copper-catalyzed cascade synthesis of quinazoline and quinazolinone derivatives. Chem Commun (Camb) 2008:6333-5. [PMID: 19048146 DOI: 10.1039/b814011a] [Citation(s) in RCA: 165] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have developed a general and highly efficient copper-catalyzed method for synthesis of quinazoline and quinazolinone derivatives, the target products were obtained in good to excellent yields via cascade reactions of amidine hydrochlorides with substituted 2-halobenzaldehydes, 2-halophenylketones, or methyl 2-halobenzoates, and the method is of simple, economical and practical advantages.
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Affiliation(s)
- Cheng Huang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, PR China
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Gessi S, Merighi S, Varani K, Leung E, Mac Lennan S, Borea PA. The A3 adenosine receptor: an enigmatic player in cell biology. Pharmacol Ther 2007; 117:123-40. [PMID: 18029023 DOI: 10.1016/j.pharmthera.2007.09.002] [Citation(s) in RCA: 165] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2007] [Accepted: 09/05/2007] [Indexed: 02/01/2023]
Abstract
Adenosine is a primordial signaling molecule present in every cell of the human body that mediates its physiological functions by interacting with 4 subtypes of G-protein-coupled receptors, termed A1, A2A, A2B and A3. The A3 subtype is perhaps the most enigmatic among adenosine receptors since, although several studies have been performed in the years to elucidate its physiological function, it still presents in several cases a double nature in different pathophysiological conditions. The 2 personalities of A3 often come into direct conflict, e.g., in ischemia, inflammation and cancer, rendering this receptor as a single entity behaving in 2 different ways. This review focuses on the most relevant aspects of A3 adenosine subtype activation and summarizes the pharmacological evidence as the basis of the dichotomy of this receptor in different therapeutic fields. Although much is still to be learned about the function of the A3 receptor and in spite of its duality, at the present time it can be speculated that A3 receptor selective ligands might show utility in the treatment of ischemic conditions, glaucoma, asthma, arthritis, cancer and other disorders in which inflammation is a feature. The biggest and most intriguing challenge for the future is therefore to understand whether and where selective A3 agonists or antagonists are the best choice.
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Affiliation(s)
- Stefania Gessi
- Department of Clinical and Experimental Medicine, Pharmacology Unit and Interdisciplinary Center for the Study of Inflammation, Ferrara, Italy
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Bhattacharya P, Leonard JT, Roy K. Exploring QSAR of thiazole and thiadiazole derivatives as potent and selective human adenosine A3 receptor antagonists using FA and GFA techniques. Bioorg Med Chem 2005; 13:1159-65. [PMID: 15670924 DOI: 10.1016/j.bmc.2004.11.022] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2004] [Revised: 11/10/2004] [Accepted: 11/11/2004] [Indexed: 10/26/2022]
Abstract
Binding affinity data of thiazole and thiadiazole derivatives (n=30) for human adenosine A3 receptor subtype have been subjected to Quantitative Structure-Activity Relationship (QSAR) analysis using quantum chemical and hydrophobicity parameters. Wang-Ford charges of the common atoms of the compounds [calculated from molecular electrostatic potential surface of energy minimized geometry using Austin Model 1 (AM1) technique] were used as independent variables apart from partition coefficient (logP) and suitable dummy parameters. The variables for the multiple regression analyses were selected based on principal component factor analysis (FA), and generated equations were statistically validated using leave-one-out technique. The best equation thus obtained explained and predicted 74.4% and 68.9% respectively of the variance of the binding affinity. The results suggested importance of Wang-Ford charges of atoms C2, C5 and C7. Furthermore, the A3 binding affinity increases with decrease of lipophilicity of the compounds and in the presence of methyl or ethyl substituent at R position. Again, the binding affinity decreases in the presence of tert-butyloxy group at R position. When factor scores were used as predictor variables in principal component regression analysis, the resulted model showed 87.0% predicted variance and 89.5% explained variance. The data set was also modeled using genetic function approximation (GFA) technique. The best two equations derived from GFA show better predicted variance values (0.753 and 0.739) than that found in case of the best equation derived from FA. However, considerable intercorrelation was found between two predictor variables in case of GFA derived equations. GFA derived equations show importance of Wang-Ford charges of different atoms of the thiazole/thiadiazole nucleus and phenyl ring (S9, X8 and C2, the effects of the first two being predominant) along with similar impact of lipophilicity and R group on the binding affinity as found in case of the FA derived relation.
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Affiliation(s)
- Prosenjit Bhattacharya
- Drug Theoretics and Cheminformatics Lab, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700 032, India
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