1
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Arandhara PJ, Behera BK, Biswas S, Saikia AK. Synthesis of 1,2,3-triazole-fused N-heterocycles from N-alkynyl hydroxyisoindolinones and sodium azide via the Huisgen reaction. Org Biomol Chem 2023; 21:8772-8781. [PMID: 37877886 DOI: 10.1039/d3ob01498c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
An efficient methodology for the synthesis of dihydro[1,2,3]triazolo-pyrimidoisoindolones and dihydro[1,2,3]triazolo-diazepinoisoindolones has been developed using the Huisgen reaction from sodium azide and alkyne substituted amido alcohols in moderate to good yields. The reaction involves the in situ generation of the N-acyliminium ion intermediate, which undergoes a nucleophilic attack by the azide ion, followed by a [3 + 2]-intramolecular azide-alkyne cycloaddition reaction. Importantly, the reaction proceeds without the involvement of any transition metal catalyst. This methodology can be further utilized for the synthesis of dihydro[1,2,3]triazolo-pyrimidoisoindolthiones via thionation of amides.
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Affiliation(s)
- Pallav Jyoti Arandhara
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Bipin Kumar Behera
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Subhamoy Biswas
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Anil K Saikia
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
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2
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Ganesha DP, Sreenatha NR, Shankara SR, Lakshminarayana BN. Structural, Hirshfeld surface and three-dimensional inter-action energy studies of 2-(6-iodo-4-oxo-3,4-di-hydro-quinazolin-3-yl)ethane-sulfonyl fluoride. Acta Crystallogr E Crystallogr Commun 2023; 79:65-69. [PMID: 36793411 PMCID: PMC9912468 DOI: 10.1107/s205698902201221x] [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: 10/17/2022] [Accepted: 12/28/2022] [Indexed: 01/09/2023]
Abstract
In the crystal, mol-ecules of the title compound, C10H8FIN2O3S, are connected through C-H⋯N and C-H⋯O hydrogen bonds, I⋯O halogen bonds, π-π stacking inter-actions between the benzene and pyrimidine rings, and edge-to-edge electrostatic inter-actions, as shown by the analysis of the Hirshfeld surface and two-dimensional fingerprint plots, as well as inter-molecular inter-action energies calculated using the electron-density model at the HF/3-21 G level of theory.
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Affiliation(s)
- D. P. Ganesha
- Department of Engineering Physics, Adichunchanagiri Institute of Technology, Chikkamagaluru - 577102, Karnataka, India
| | - N. R. Sreenatha
- Department of Physics, Government Engineering College, B M Road, Dairy Circle, Hassan - 573 201, Karnataka, India
| | - S. R. Shankara
- Department of Engineering Physics, BGS Institute of Technology, Adichunchanagiri University, B G Nagara, Karnataka, India
| | - B. N. Lakshminarayana
- Department of Engineering Physics, Adichunchanagiri Institute of Technology, Chikkamagaluru - 577102, Karnataka, India,Correspondence e-mail:
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3
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Zhou T, Zhu Y, Zhang H, He J, Li H, Lang M, Wang J, Peng S. One‐Pot Synthesis of 1,2,3‐Triazolo Polycyclic Systems via Copper‐Catalyzed/TsOH‐Promoted Tandem Annulation of 1,6‐Allenynes with Organic Azides. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100768] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ting Zhou
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 People's Republic of China
| | - Yuqi Zhu
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 People's Republic of China
| | - Hong Zhang
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 People's Republic of China
| | - Jieyin He
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 People's Republic of China
| | - Hongguang Li
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 People's Republic of China
| | - Ming Lang
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 People's Republic of China
| | - Jian Wang
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 People's Republic of China
- School of Pharmaceutical Sciences Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology Ministry of Education Tsinghua University Beijing 100084 People's Republic of China
| | - Shiyong Peng
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 People's Republic of China
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4
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Selective Synthesis of 2-(1,2,3-Triazoyl) Quinazolinones through Copper-Catalyzed Multicomponent Reaction. Catalysts 2021. [DOI: 10.3390/catal11101170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
We describe here our results from the copper-catalyzed three component reaction of 2-azidobenzaldehyde, anthranilamide and terminal alkynes, using Et3N as base, and DMSO as solvent. Depending on the temperature and amount of Et3N used in the reactions, 1,2,3-triazolyl-quinazolinones or 1,2,3-triazolyl-dihydroquinazolinone could be obtained. When the reactions were performed at 100 °C using 2 equivalents of Et3N, 1,2,3-triazolyl-dihydroquinazolinone was formed in 82% yield, whereas reactions carried out at 120 °C using 1 equivalent of Et3N provided 1,2,3-triazolyl-quinazolinones in moderate-to-good yields.
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Kotovshchikov YN, Tatevosyan SS, Latyshev GV, Lukashev NV, Beletskaya IP. Facile Access to Triazole-Fused 3,1-Benzoxazines Enabled by Metal-Free Base-Promoted Intramolecular C–O Coupling. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1623-2333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
AbstractA convenient approach to assemble 1,2,3-triazole-fused 4H-3,1-benzoxazines has been developed. Diverse alcohol-tethered 5-iodotriazoles, readily accessible by a modified protocol of Cu-catalyzed (3+2)-cycloaddition, were utilized as precursors of the target fused heterocycles. The intramolecular C–O coupling proceeded efficiently under base-mediated transition-metal-free conditions, furnishing cyclization products in yields up to 96%. Suppression of the competing reductive cleavage of the C–I bond was achieved by the use of Na2CO3 in acetonitrile at 100 °C. This practical and cost-effective procedure features a broad substrate scope and valuable functional group tolerance.
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6
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Abuelizz HA, Al-Salahi R. An overview of triazoloquinazolines: Pharmacological significance and recent developments. Bioorg Chem 2021; 115:105263. [PMID: 34426148 DOI: 10.1016/j.bioorg.2021.105263] [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: 04/20/2021] [Revised: 07/14/2021] [Accepted: 08/07/2021] [Indexed: 01/26/2023]
Abstract
Nitrogen heterocyclic rings have participated to constitute most of the drugs and several pharmacologically related compounds. The existence of such hetero atoms/groups in heterocyclic systems privileged specificities in their biological objectives. Particularly, quinazoline and triazole are biologically imperative platforms known to be linked with various pharmacological activities. Some of the prominent pharmacological responses ascribed to these systems are analgesic, antiinflammatory, anticonvulsant, hypnotic, antihistaminic, antihypertensive, anticancer, antimicrobial, antitubercular, antiviral and antimalarial activities. This diversity in the pharmacological outputs for both triazole and quinazoline systems has encouraged the medicinal chemistry researchers to create several chemical routes aiming at the incorporation of two rings in one molecule named triazoloquinazoline system. This system has shown multiple potential activities against numerous targets. Correlation the specific structural features of triazoloquinazoline system with its pharmacological purposes has successively been achieved by performing several pharmacological examinations and structure-activity relationship studies. The development of triazoloquinazoline derivatives and the understanding of their pharmacological targets offer opportunities for novel therapeutics. This review mainly emphases on the medicinal chemistry aspects of triazoloquinazolines including synthesis, reactivity, biological activity and structure activity relationship studies (SARs). Moreover, this review collates literature reported by researchers on triazoquinazolines and provides detailed attention on their analogs pharmacological activities in the perspective of drug development and discovery.
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Affiliation(s)
- Hatem A Abuelizz
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, PO Box 2457, Riyadh 11451, Saudi Arabia
| | - Rashad Al-Salahi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, PO Box 2457, Riyadh 11451, Saudi Arabia.
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7
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Du W, Huang H, Xiao T, Jiang Y. Metal‐Free, Visible‐Light Promoted Intramolecular Azole C−H Bond Amination Using Catalytic Amount of I
2
: A Route to 1,2,3‐Triazolo[1,5‐
a
]quinazolin‐5(4
H
)‐ones. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000917] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Weigen Du
- Faculty of Science Kunming University of Science and Technology 727 South Jingming Road, Chenggong District Kunming 650500, P. R. of China
| | - Hongtai Huang
- Faculty of Science Kunming University of Science and Technology 727 South Jingming Road, Chenggong District Kunming 650500, P. R. of China
| | - Tiebo Xiao
- Faculty of Science Kunming University of Science and Technology 727 South Jingming Road, Chenggong District Kunming 650500, P. R. of China
| | - Yubo Jiang
- Faculty of Science Kunming University of Science and Technology 727 South Jingming Road, Chenggong District Kunming 650500, P. R. of China
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8
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Annareddygari S, Kasireddy VR, Reddy J. Transition‐metal‐free
N
‐arylation: A general approach to aza‐fused poly‐heteroaromatics. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3722] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Srikanth Annareddygari
- Department of Chemistry, Jawaharlal Nehru Technological UniversityCollege of Engineering Hyderabad 500085 India
- Department of Research and DevelopmentDr. JCR BIO‐SCEIENCES PRIVATE LIMITED Plot NO‐79/80, Chengicherla Village, Cherlapalli Phase III Industrial Park Hyderabad 500039 India
| | - Venkateshwer Reddy Kasireddy
- Department of Chemistry, Jawaharlal Nehru Technological UniversityCollege of Engineering Hyderabad 500085 India
- Department of Chemistry, CMR Engineering CollegeJawaharlal Nehru Technological University Hyderabad 501401 India
| | - Jayachandra Reddy
- Department of Research and DevelopmentDr. JCR BIO‐SCEIENCES PRIVATE LIMITED Plot NO‐79/80, Chengicherla Village, Cherlapalli Phase III Industrial Park Hyderabad 500039 India
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9
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Synthesis and adenosine receptors binding studies of new fluorinated analogues of pyrido[2,3-d]pyrimidines and quinazolines. Med Chem Res 2017. [DOI: 10.1007/s00044-017-2099-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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10
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Yakovenko GG, Yagodkina MS, Bol’but AV, Shishkina SV, Vovk MV. Synthesis of new triazolo[1,5-b][2,4]benzodiazepines via tandem cyclization of o-(azidomethyl)benzoates with cyanoacetamides. MONATSHEFTE FUR CHEMIE 2017. [DOI: 10.1007/s00706-016-1905-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Barve IJ, Thikekar TU, Sun CM. Silver(I)-Catalyzed Regioselective Synthesis of Triazole Fused-1,5-Benzoxazocinones. Org Lett 2017; 19:2370-2373. [DOI: 10.1021/acs.orglett.7b00907] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Indrajeet J. Barve
- Department
of Applied Chemistry, National Chiao-Tung University, 1001 Ta-Hseuh
Road, Hsinchu 300-10, Taiwan
| | - Tushar Ulhas Thikekar
- Department
of Applied Chemistry, National Chiao-Tung University, 1001 Ta-Hseuh
Road, Hsinchu 300-10, Taiwan
| | - Chung-Ming Sun
- Department
of Applied Chemistry, National Chiao-Tung University, 1001 Ta-Hseuh
Road, Hsinchu 300-10, Taiwan
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, 100,
Shih-Chuan first Road, Kaohsiung 807-08, Taiwan
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12
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Guerrini G, Ciciani G, Ciattini S, Crocetti L, Daniele S, Martini C, Melani F, Vergelli C, Giovannoni MP. Pyrazolo[1,5-a]quinazoline scaffold as 5-deaza analogue of pyrazolo[5,1-c][1,2,4]benzotriazine system: synthesis of new derivatives, biological activity on GABAA receptor subtype and molecular dynamic study. J Enzyme Inhib Med Chem 2015; 31:195-204. [DOI: 10.3109/14756366.2015.1014475] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Gabriella Guerrini
- Dipartimento NEUROFARBA, Sezione Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Firenze, Italy,
| | - Giovanna Ciciani
- Dipartimento NEUROFARBA, Sezione Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Firenze, Italy,
| | - Samuele Ciattini
- Dipartimento di Chimica, Centro di Cristallografia, Università degli Studi di Firenze, Firenze, Italy, and
| | - Letizia Crocetti
- Dipartimento NEUROFARBA, Sezione Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Firenze, Italy,
| | - Simona Daniele
- Dipartimento di Farmacia, Università degli Studi di Pisa, Pisa, Italy
| | - Claudia Martini
- Dipartimento di Farmacia, Università degli Studi di Pisa, Pisa, Italy
| | - Fabrizio Melani
- Dipartimento NEUROFARBA, Sezione Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Firenze, Italy,
| | - Claudia Vergelli
- Dipartimento NEUROFARBA, Sezione Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Firenze, Italy,
| | - Maria Paola Giovannoni
- Dipartimento NEUROFARBA, Sezione Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Firenze, Italy,
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13
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Regioselective Synthesis of 2-Acylquinazolines and 3H-1,4-Benzodiazepin-3-ones by a Ugi 4CC/Staudinger/aza-Wittig Sequence. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.1953] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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14
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Selvaraju M, Sun CM. One-Pot Synthesis of TriazoloquinazolinonesviaCopper- Catalyzed Tandem Click and Intramolecular CH Amidation. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201301013] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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15
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Multicomponent and Domino Reactions Leading to 1,2,3-Triazoles. TOPICS IN HETEROCYCLIC CHEMISTRY 2014. [DOI: 10.1007/7081_2014_122] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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16
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Novel N-aryl(alkaryl)-2-[(3-R-2-oxo-2H-[1,2,4]triazino[2,3-c]quinazoline-6-yl)thio]acetamides: synthesis, cytotoxicity, anticancer activity, COMPARE analysis and docking. Med Chem Res 2012. [DOI: 10.1007/s00044-012-0257-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Yadav S, Sinha D, Singh SK, Singh VK. Novel benzimidazole analogs as inhibitors of EGFR tyrosine kinase. Chem Biol Drug Des 2012; 80:625-30. [PMID: 22564276 DOI: 10.1111/j.1747-0285.2012.01407.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of new benzimidazole congeners were synthesized, and their structures were elucidated on the basis of elemental analyses and spectral studies (¹H NMR, FT-IR and EI-MS). Preliminary pharmacokinetic studies showed a promising outlook for further in vivo evaluation. The newly synthesized compounds were tested in vitro on human breast carcinoma cell line (MCF-7) in which EGFR is highly expressed. Most of the tested compounds exhibited antitumor activity with IC₅₀ values in the micro to nano molar range.
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18
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QSAR modeling of synthesized 3-(1,3-benzothiazol-2-yl) 2-phenyl quinazolin-4(3H)-ones as potent antibacterial agents. Med Chem Res 2011. [DOI: 10.1007/s00044-011-9626-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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Al-Salahi R, Geffken D, Koellner M. A New Series of 2-Alkoxy(aralkoxy)-[1,2,4]triazolo[1,5-a]quinazolin-5-ones as Adenosine Receptor Antagonists. Chem Pharm Bull (Tokyo) 2011; 59:730-3. [DOI: 10.1248/cpb.59.730] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Rashad Al-Salahi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University
| | - Detlef Geffken
- Department of Chemistry, Institute of Pharmacy, Hamburg University
| | - Maria Koellner
- Department of Chemistry, Institute of Pharmacy, Hamburg University
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20
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Alkorta I, Blanco F, Elguero J, Claramunt RM. The azido-tetrazole and diazo-1,2,3-triazole tautomerism in six-membered heteroaromatic rings and their relationships with aromaticity: Azines and perimidine. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.02.035] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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21
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Al-Salahi R, Geffken D. Novel Synthesis of 2-Alkoxy(Aralkoxy)-5-chloro[1,2,4]triazolo[1,5-a]quinazolines and Their Derivatives. HETEROCYCLES 2010. [DOI: 10.3987/com-10-11976] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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22
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Pokhodylo NT, Matiychuk VS. Synthesis of new 1,2,3-triazolo[1,5-a]quinazolinones. J Heterocycl Chem 2010. [DOI: 10.1002/jhet.321] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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23
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Portela-Cubillo F, Scott JS, Walton JC. Microwave-promoted syntheses of quinazolines and dihydroquinazolines from 2-aminoarylalkanone O-phenyl oximes. J Org Chem 2009; 74:4934-42. [PMID: 19449842 DOI: 10.1021/jo900629g] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A wide range of biologically active compounds contain the quinazoline ring system. A new free-radical-based method of making functionalized quinazolines is described, which relies on microwave-promoted reactions of O-phenyl oximes with aldehydes. A small set of 2-aminoaryl alkanone O-phenyl oximes was prepared and shown to produce dihydroquinazolines when mixed with an aldehyde in toluene and subjected to microwave heating. When ZnCl(2) was included in the reaction mixture, fully aromatic quinazolines were produced in high yields by a rapid and convenient process. The method worked well with alkyl, aryl, and heterocyclic aldehydes and for a variety of substituents in the benzenic part of the molecule. Similar reactions employing ketones instead of aldehydes were less efficient. Although some dihydroquinazolines did form, they were accompanied by several byproducts. Surprisingly, in each case, one of the byproducts was a quinoline derivative, and a plausible mechanism to account for this rearrangement is proposed.
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25
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Shukla G, Tiwari AK, Singh VK, Bajpai A, Chandra H, Mishra AK. Effect of a Novel Series of Benzothiazolo-Quinazolones on Epidermal Growth Factor Receptor (EGFR) and Biological Evaluations. Chem Biol Drug Des 2008; 72:533-9. [DOI: 10.1111/j.1747-0285.2008.00724.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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26
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Tiwari AK, Singh VK, Bajpai A, Shukla G, Singh S, Mishra AK. Synthesis and biological properties of 4-(3H)-quinazolone derivatives. Eur J Med Chem 2007; 42:1234-8. [PMID: 17321640 DOI: 10.1016/j.ejmech.2007.01.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2006] [Revised: 01/06/2007] [Accepted: 01/08/2007] [Indexed: 10/23/2022]
Abstract
A new quinazolone series has been designed, and synthesized by the anthranilic acid and different acid derivatives. Their structures have been elucidated on the basis of elemental analyses and spectral studies (IR, (1)H NMR, FT-IR and FAB-MS). A preliminary radiolabelling study with technetium has shown a very good future prospect for further evaluation in vivo. The biological activities (antifungal, antibacterial as well as anticancerous) of the evaluated compounds are discussed in this article.
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Affiliation(s)
- Anjani K Tiwari
- Nanotech and Stem Cell Research, Division of Radiopharmaceuticals, Institute of Nuclear Medicine and Allied Sciences, Brig. S.K. Mazumdar Road, Delhi-110054, India
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27
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Tiwari AK, Mishra AK, Bajpai A, Mishra P, Sharma RK, Pandey VK, Singh VK. Synthesis and pharmacological study of novel pyrido-quinazolone analogues as anti-fungal, antibacterial, and anticancer agents. Bioorg Med Chem Lett 2006; 16:4581-5. [PMID: 16806924 DOI: 10.1016/j.bmcl.2006.06.015] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2005] [Revised: 05/11/2006] [Accepted: 06/06/2006] [Indexed: 11/17/2022]
Abstract
A versatile method for novel pyrido-quinazolones was described here and tested for anti-fungal, antibacterial, and anticancerous activities. These synthesized compounds were characterized on the basis of spectroscopic techniques and evaluated for specific radiopharmaceuticals. Preliminary radiolabeling results with (99m)Tc and biological evaluation studies showed promising results for further evaluation in vivo. The efficiency of labeling was more than 98% and complexes were stable for about 18 h at 25 degrees C in the presence of serum.
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Affiliation(s)
- Anjani K Tiwari
- Nanotech and Stem Cell Research, Division of Radiopharmaceuticals, Institute of Nuclear Medicine and Allied Sciences, Delhi, India
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28
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Kumar V, Mohan C, Gupta M, Mahajan MP. A catalyst- and solvent-free selective approach to biologically important quinazolines and benzo[g]quinazoline. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.01.118] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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29
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Chang LCW, Brussee J, Ijzerman AP. Non-Xanthine Antagonists for the Adenosine A1 Receptor. Chem Biodivers 2004; 1:1591-626. [PMID: 17191804 DOI: 10.1002/cbdv.200490122] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lisa C W Chang
- Leiden/Amsterdam Center for Drug Research, Division of Medicinal Chemistry, P.O. Box 9502, NL-2300 RA Leiden
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30
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Soelaiman S, Wei BQ, Bergson P, Lee YS, Shen Y, Mrksich M, Shoichet BK, Tang WJ. Structure-based inhibitor discovery against adenylyl cyclase toxins from pathogenic bacteria that cause anthrax and whooping cough. J Biol Chem 2003; 278:25990-7. [PMID: 12676933 DOI: 10.1074/jbc.m301232200] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Edema factor (EF) and CyaA are adenylyl cyclase toxins secreted by pathogenic bacteria that cause anthrax and whooping cough, respectively. Using the structure of the catalytic site of EF, we screened a data base of commercially available, small molecular weight chemicals for those that could specifically inhibit adenylyl cyclase activity of EF. From 24 compounds tested, we have identified one quinazoline compound, ethyl 5-aminopyrazolo[1,5-a]quinazoline-3-carboxylate, that specifically inhibits adenylyl cyclase activity of EF and CyaA with approximately 20 microm Ki. This compound neither affects the activity of host resident adenylyl cyclases type I, II, and V nor exhibits promiscuous inhibition. The compound is a competitive inhibitor, consistent with the prediction that it binds to the adenine portion of the ATP binding site on EF. EF is activated by the host calcium sensor, calmodulin. Surface plasmon resonance spectroscopic analysis shows that this compound does not affect the binding of calmodulin to EF. This compound is dissimilar from a previously described, non-nucleoside inhibitor of host adenylyl cyclase. It may serve as a lead to design antitoxins to address the role of adenylyl cyclase toxins in bacterial pathogenesis and to fight against anthrax and whooping cough.
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Affiliation(s)
- Sandriyana Soelaiman
- Ben-May Institute for Cancer Research, The University of Chicago, Chicago, Illinois 60637, USA
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Cowan FM, Broomfield CA, Lenz DE, Smith WJ. Putative role of proteolysis and inflammatory response in the toxicity of nerve and blister chemical warfare agents: implications for multi-threat medical countermeasures. J Appl Toxicol 2003; 23:177-86. [PMID: 12794939 DOI: 10.1002/jat.901] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Despite the contrasts in chemistry and toxicity, for blister and nerve chemical warfare agents there may be some analogous proteolytic and inflammatory mediators and pathological pathways that can be pharmacological targets for a single-drug multi-threat medical countermeasure. The dermal-epidermal separation caused by proteases and bullous diseases compared with that observed following exposure to the blister agent sulfur mustard (2,2'-dichlorodiethyl sulfide) has fostered the hypothesis that sulfur mustard vesication involves proteolysis and inflammation. In conjunction with the paramount toxicological event of cholinergic crisis that causes acute toxicity and precipitates neuronal degeneration, both anaphylactoid reactions and pathological proteolytic activity have been reported in nerve-agent-intoxicated animals. Two classes of drugs already have demonstrated multi-threat activity for both nerve and blister agents. Serine protease inhibitors can prolong the survival of animals intoxicated with the nerve agent soman and can also protect against vesication caused by the blister agent sulfur mustard. Poly (ADP-ribose) polymerase (PARP) inhibitors can reduce both soman-induced neuronal degeneration and sulfur-mustard-induced epidermal necrosis. Protease and PARP inhibitors, like many of the other countermeasures for blister and nerve agents, have potent primary or secondary anti-inflammatory pharmacology. Accordingly, we hypothesize that drugs with anti-inflammatory actions against either nerve or blister agent might also display multi-threat efficacy for the inflammatory pathogenesis of both classes of chemical warfare agent.
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Affiliation(s)
- F M Cowan
- US Army Medical Research Institute of Chemical Defense, Aberdeen Proving Ground, MD 21010-5400, USA.
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