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Pérez-Fehrmann M, Kesternich V, Puelles A, Quezada V, Salazar F, Christen P, Castillo J, Cárcamo JG, Castro-Alvarez A, Nelson R. Synthesis, antitumor activity, 3D-QSAR and molecular docking studies of new iodinated 4-(3 H)-quinazolinones 3 N-substituted. RSC Adv 2022; 12:21340-21352. [PMID: 35975048 PMCID: PMC9344282 DOI: 10.1039/d2ra03684c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 07/19/2022] [Indexed: 01/09/2023] Open
Abstract
A novel series of 6-iodo-2-methylquinazolin-4-(3H)-one derivatives, 3a–n, were synthesized and evaluated for their in vitro cytotoxic activity. Compounds 3a, 3b, 3d, 3e, and 3h showed remarkable cytotoxic activity on specific human cancer cell lines when compared to the anti-cancer drug, paclitaxel. Compound 3a was found to be particularly effective on promyelocytic leukaemia HL60 and non-Hodgkin lymphoma U937, with IC50 values of 21 and 30 μM, respectively. Compound 3d showed significant activity against cervical cancer HeLa (IC50 = 10 μM). The compounds 3e and 3h were strongly active against glioblastoma multiform tumour T98G, with IC50 values of 12 and 22 μM, respectively. These five compounds showed an interesting cytotoxic activity on four human cancer cell types of high incidence. The molecular docking results reveal a good correlation between experimental activity and calculated binding affinity on dihydrofolate reductase (DHFR). Docking studies proved 3d as the most potent compound. In addition, the three-dimensional quantitative structure–activity relationship (3D-QSAR) analysis exhibited activities that may indicate the existence of electron-withdrawing and lipophilic groups at the para-position of the phenyl ring and hydrophobic interactions of the quinazolinic ring in the DHFR active site. New iodinated 4-(3H)-quinazolinones 3N-substituted with antitumor activity and 3D-QSAR and molecular docking studies as dihydrofolate reductase (DHFR) inhibitors.![]()
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Affiliation(s)
- Marcia Pérez-Fehrmann
- Departamento de Química, Facultad de Ciencias, Universidad Católica del Norte Av. Angamos 0610 Antofagasta 1270709 Chile
| | - Víctor Kesternich
- Departamento de Química, Facultad de Ciencias, Universidad Católica del Norte Av. Angamos 0610 Antofagasta 1270709 Chile
| | - Arturo Puelles
- Departamento de Química, Facultad de Ciencias, Universidad Católica del Norte Av. Angamos 0610 Antofagasta 1270709 Chile
| | - Víctor Quezada
- Departamento de Química, Facultad de Ciencias, Universidad Católica del Norte Av. Angamos 0610 Antofagasta 1270709 Chile
| | - Fernanda Salazar
- Departamento de Química, Facultad de Ciencias, Universidad Católica del Norte Av. Angamos 0610 Antofagasta 1270709 Chile
| | - Philippe Christen
- School of Pharmaceutical Sciences University of Geneva 1211 Geneva 4 Switzerland.,Institute of Pharmaceutical Sciences of Western Switzerland University of Geneva 1211 Geneva 4 Switzerland
| | - Jonathan Castillo
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile Campus Isla Teja Valdivia Chile
| | - Juan Guillermo Cárcamo
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile Campus Isla Teja Valdivia Chile.,Centro FONDAP, Interdisciplinary Center for Aquaculture Research (INCAR) Chile
| | - Alejandro Castro-Alvarez
- Laboratorio de Bioproductos Farmacéuticos y Cosméticos, Centro de Excelencia en Medicina Traslacional, Facultad de Medicina, Universidad de La Frontera Av. Francisco Salazar 01145 Temuco 4780000 Chile.,Departamento de Química de los Materiales, Facultad de Química y Biología, Universidad de Santiago de Chile Casilla 40, Correo 33 Santiago Chile
| | - Ronald Nelson
- Departamento de Química, Facultad de Ciencias, Universidad Católica del Norte Av. Angamos 0610 Antofagasta 1270709 Chile
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Wang Y, Zhang WX, Xi Z. Carbodiimide-based synthesis of N-heterocycles: moving from two classical reactive sites to chemical bond breaking/forming reaction. Chem Soc Rev 2020; 49:5810-5849. [PMID: 32658233 DOI: 10.1039/c9cs00478e] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Carbodiimides are a unique class of heterocumulene compounds that display distinctive chemical properties. The rich chemistry of carbodiimides has drawn increasing attention from chemists in recent years and has made them exceedingly useful compounds in modern organic chemistry, especially in the synthesis of N-heterocycles. This review has outlined the extensive application of carbodiimides in the synthesis of N-heterocycles from the 1980s to today. A wide range of reactions for the synthesis of various types of N-heterocyclic systems (three-, four-, five-, six-, seven-, larger-membered and fused heterocycles) have been developed on the basis of carbodiimides and their derivatives.
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Affiliation(s)
- Yang Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China. and Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology (QNLM), Qingdao 266237, China
| | - Wen-Xiong Zhang
- Beijing National Laboratory for Molecular Sciences, MOE Key Laboratory of Bioorganic Chemistry and Molecular Engineering, College of Chemistry, Peking University, Beijing 100871, China.
| | - Zhenfeng Xi
- Beijing National Laboratory for Molecular Sciences, MOE Key Laboratory of Bioorganic Chemistry and Molecular Engineering, College of Chemistry, Peking University, Beijing 100871, China.
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Brahmachari G, Nurjamal K, Begam S, Mandal M, Nayek N, Karmakar I, Mandal B. Alum (KAl(SO4)2.12H2O) - An Eco-friendly and Versatile Acid-catalyst in Organic Transformations: A Recent Update. CURRENT GREEN CHEMISTRY 2019. [DOI: 10.2174/2213346106666190307160332] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Potassium alum (KAl(SO4)2.12H2O), commonly known as ‘alum’, has recently drawn the attention of synthetic chemists as an efficient, safe and eco-friendly acid catalyst in implementing a large number of organic transformations, thereby generating interesting molecular frameworks. The present review article offers an overview of the potent catalytic applications of this commercially available and low-cost inorganic sulfate salt in organic reactions reported during the period of 2014 to 2018.
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Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (Central University), Santiniketan-731 235, West Bengal, India
| | - Khondekar Nurjamal
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (Central University), Santiniketan-731 235, West Bengal, India
| | - Sanchari Begam
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (Central University), Santiniketan-731 235, West Bengal, India
| | - Mullicka Mandal
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (Central University), Santiniketan-731 235, West Bengal, India
| | - Nayana Nayek
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (Central University), Santiniketan-731 235, West Bengal, India
| | - Indrajit Karmakar
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (Central University), Santiniketan-731 235, West Bengal, India
| | - Bhagirath Mandal
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (Central University), Santiniketan-731 235, West Bengal, India
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4
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Zeng Z, Gao T, Li Y, Wang X, Yang X, Wu M. Synthesis and biological activity of arylsulfonamide derivatives containing 2-arylamino-4(3 H)-quinazolinone. JOURNAL OF PESTICIDE SCIENCE 2016; 41:171-174. [PMID: 30363126 PMCID: PMC6140676 DOI: 10.1584/jpestics.d16-053] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 09/04/2016] [Indexed: 06/08/2023]
Abstract
Twenty arylsulfonamide derivatives containing 2-arylamino-4(3H)-quinazolinone were synthesized and evaluated for their bioactivities. 4-Fluoro-N-(2-(4-oxo-2-(4-(trifluoromethoxy)phenyl)amino)quinazolin-3(4H)-yl)ethyl benzenesulfonamide, showed excellent activity both against Ralstonia solanacearum and Gibberella zeae with the inhibition rates of 100% (200 mg/L) and 95% (100 mg/L), and 69% (50 mg/L), respectively, exceeding that of the assigned commercial bactericide (thiodiazole-copper) and fungicide (hymexazol). The preliminary structure activity relationships (SAR) showed that both benzene rings of arylamino and arylsulfonamido moieties containing electron-withdrawing substitutes may be preferable for improving the bioactivity of target compounds.
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Affiliation(s)
- Zhigang Zeng
- School of Nuclear Technology and Chemistry & Biology, Hubei University of Science and Technology, Xianning, Hubei, 437100, P. R. China
- Hubei Collaborative Innovation Center for Non-power Nuclear Technology, Xianning, Hubei, 437100, P. R. China
| | - Tao Gao
- School of Nuclear Technology and Chemistry & Biology, Hubei University of Science and Technology, Xianning, Hubei, 437100, P. R. China
- Hubei Collaborative Innovation Center for Non-power Nuclear Technology, Xianning, Hubei, 437100, P. R. China
| | - Yan Li
- School of Nuclear Technology and Chemistry & Biology, Hubei University of Science and Technology, Xianning, Hubei, 437100, P. R. China
- Hubei Collaborative Innovation Center for Non-power Nuclear Technology, Xianning, Hubei, 437100, P. R. China
| | - Xiang Wang
- School of Chemistry and Materials Engineering, Kaili University, Kaili, Guizhou, 556011, P. R. China
| | - Xuhong Yang
- School of Nuclear Technology and Chemistry & Biology, Hubei University of Science and Technology, Xianning, Hubei, 437100, P. R. China
- Hubei Collaborative Innovation Center for Non-power Nuclear Technology, Xianning, Hubei, 437100, P. R. China
| | - Minghu Wu
- School of Nuclear Technology and Chemistry & Biology, Hubei University of Science and Technology, Xianning, Hubei, 437100, P. R. China
- Hubei Collaborative Innovation Center for Non-power Nuclear Technology, Xianning, Hubei, 437100, P. R. China
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Mohammadi AA, Taheri S, Askari S. One-Pot Pseudo Five-Component Synthesis of Some New bis(Quinazolinon-4(1H)-one) Derivatives. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2609] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ali A. Mohammadi
- Chemistry and Chemical Engineering Research Center of Iran (CCERCI); P.O. Box 14335-186 Tehran I.R. Iran
| | - Salman Taheri
- Chemistry and Chemical Engineering Research Center of Iran (CCERCI); P.O. Box 14335-186 Tehran I.R. Iran
| | - Saber Askari
- Chemistry and Chemical Engineering Research Center of Iran (CCERCI); P.O. Box 14335-186 Tehran I.R. Iran
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Synthesis of tricyclic quinazolinones via intramolecular cyclization of 3-(2-aminoalkyl)-2-(phenylamino)quinazolin-4(3H)-ones. Mol Divers 2015; 20:551-6. [PMID: 26470864 DOI: 10.1007/s11030-015-9636-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 10/07/2015] [Indexed: 10/22/2022]
Abstract
Bioactive tricyclic quinazolines class of 3,4-dihydro-1H-pyrimido[2,1-b]quinazolin-6(2H)-ones I and 2,3-dihydroimidazo[2,1-b]quinazolin-5(1H)-ones II were synthesized by the formic acid-catalyzed intramolecular cyclization of 3-(2-aminoalkyl)-2-(phenylamino)quinazolin-4(3H)-ones 1 in high yields. A plausible mechanism of the cyclization step is proposed.
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Wang X, Yin J, Shi L, Zhang G, Song B. Design, synthesis, and antibacterial activity of novel Schiff base derivatives of quinazolin-4(3H)-one. Eur J Med Chem 2014; 77:65-74. [PMID: 24607590 DOI: 10.1016/j.ejmech.2014.02.053] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Novel imine derivatives of quinazolin-4(3H)-one were designed and synthesized by using aminoethyl moieties to increase the amine bridge of quinazolin-4(3H)-one amine and then introducing various aromatic aldehydes. The target compounds were characterized by proton nuclear magnetic resonance spectroscopy ((1)H NMR), carbon nuclear magnetic resonance spectroscopy ((13)C NMR), mass spectrometry (MS), infrared spectroscopy (IR), elemental analysis, and X-ray diffraction crystallography. Bioassay results indicated that some of the compounds showed good to excellent antibacterial activities against tobacco bacterial wilt and tomato bacterial wilt. The 50% effective concentrations (EC50) of the compounds against tobacco and tomato bacterial wilts ranged from 63.73 μg/mL to 201.52 μg/mL and 38.64 μg/mL to 81.39 μg/mL, respectively, which are lower than that the positive control thiodiazole copper (216.70 and 99.80 μg/mL). These results indicated that novel Schiff base derivatives containing the 4(3H)-quinazolinone moiety can effectively control tobacco and tomato bacterial wilts.
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Affiliation(s)
- Xiang Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research, and Development Center for Fine Chemicals, Guizhou University, Guiyang 550025, People's Republic of China; College of Chemistry and Materials Engineering, Kaili University, Kaili 556011, People's Republic of China
| | - Juan Yin
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research, and Development Center for Fine Chemicals, Guizhou University, Guiyang 550025, People's Republic of China
| | - Li Shi
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research, and Development Center for Fine Chemicals, Guizhou University, Guiyang 550025, People's Republic of China
| | - Guoping Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research, and Development Center for Fine Chemicals, Guizhou University, Guiyang 550025, People's Republic of China
| | - Baoan Song
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research, and Development Center for Fine Chemicals, Guizhou University, Guiyang 550025, People's Republic of China.
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8
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Abstract
The new routes and strategies for the synthesis of valuable 4(3H)-quinazolinones have been summarized.
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Affiliation(s)
- Lin He
- Leibniz-Institut für Katalyse e.V
- 18059 Rostock, Germany
| | - Haoquan Li
- Leibniz-Institut für Katalyse e.V
- 18059 Rostock, Germany
| | - Jianbin Chen
- Leibniz-Institut für Katalyse e.V
- 18059 Rostock, Germany
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse e.V
- 18059 Rostock, Germany
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9
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Wang X, Li P, Li Z, Yin J, He M, Xue W, Chen Z, Song B. Synthesis and bioactivity evaluation of novel arylimines containing a 3-aminoethyl-2-[(p-trifluoromethoxy)anilino]-4(3H)-quinazolinone moiety. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:9575-82. [PMID: 24028303 DOI: 10.1021/jf403193q] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Twenty-seven novel (E)-3-[2-arylideneaminoethyl]-2-[4-(trifluoromethoxy)anilino]-4(3H)-quinazolinone derivatives were synthesized by reacting various aromatic aldehydes with intermediate 6. The target compounds were characterized by (1)H NMR, (3)C NMR, IR, and elemental analysis. Bioassay results revealed that some of the compounds have strong antifungal activities against six fungi ( Gibberella zeae , Fusarium oxysporum , Clematis mandshurica , Paralepetopsis sasakii , Phytophthora infestans , and Sclerotinia sclerotiorum ) and three bacteria ( Xanthomonas oryzae , tomato bacterial wilt, and tobacco bacterial wilt). Notably, these compounds exhibited the highest activity against tomato bacterial wilt and X. oryzae, with 50% effective concentration (EC50) values ranging from 45.96 to 93.31 μg/mL and from 20.09 to 21.33 μg/mL, respectively, which are superior to those of the commercial antibacterial agents thiodiazole-copper (99.80 μg/mL) and bismerthiazol (92.61 μg/mL). These results indicate that novel arylimine derivatives containing the 4(3H)-quinazolinone moiety can effectively control tobacco bacterial wilt, tomato bacterial wilt, and X. oryzae. Evaluation of their bactericidal properties in field studies as well as the mechanisms underlying their enhanced antibacterial activity should be interesting topics for future investigations.
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Affiliation(s)
- Xiang Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, People's Republic of China
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10
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Green synthesis of bis-quinazolinone derivatives catalyzed by iodine in ionic liquids. RESEARCH ON CHEMICAL INTERMEDIATES 2013. [DOI: 10.1007/s11164-013-1131-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Lu L, Zhang MM, Jiang H, Wang XS. Structurally diversified products from the reactions of 2-aminobenzamides with 1,3-cyclohexanediones catalyzed by iodine. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2012.11.042] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Fang ZD, Wei XH. One-Pot Three-Component Synthesis of 1,4-bis[thiazolo[4,5-d]pyrimidin-7(6H)-one]piperazine derivatives. JOURNAL OF CHEMICAL RESEARCH 2012. [DOI: 10.3184/174751912x13460803277147] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A simple one-pot efficient method is described for the synthesis of 1,4-bis[thiazolo[4,5-d]pyrimidin-7(6 H)-one] piperazine derivatives by a domino three-component process involving an aza-Wittig reaction/heterocyclisation in the presence of sodium ethoxide as catalyst. Ethyl 4-[(triphenylphosphanylidene)amino]-2,3-dihydro-3-phenyl-2-thioxothiazole-5-carboxylate reacted with aromatic isocyanates to give carbodiimide intermediates. This was followed by the addition of piperazines to give the corresponding guanidine intermediates. The guanidine intermediates were then cyclised in the presence of catalytic amount of sodium ethoxide to give 1,4-bis[thiazolo[4,5-d]pyrimidin-7(6 H)-one]piperazine derivatives in good yields.
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Affiliation(s)
- Zheng Dong Fang
- College of Chemistry and Environmental Engineering, Hubei Normal University, Huangshi, 435002, P. R. China
| | - Xian Hong Wei
- College of Chemistry and Environmental Engineering, Hubei Normal University, Huangshi, 435002, P. R. China
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Wang HL, Chen XB, Yang XH, Pan DF, Ma JK. 2-Anilino-3-(2-hy-droxy-phen-yl)quinazolin-4(3H)-one-triphenyl-phosphine oxide (1/1). Acta Crystallogr Sect E Struct Rep Online 2010; 66:o2522. [PMID: 21587516 PMCID: PMC2983302 DOI: 10.1107/s1600536810035324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2010] [Accepted: 09/01/2010] [Indexed: 12/02/2022]
Abstract
In the title compound, C20H15N3O2·C18H15OP, the pyrimidinone heterocycle and the fused phenyl ring are inclined at 1.92 (7)°. Only the hydroxy group is involved in hydrogen bonding, whereas the amino group is shielded from potential acceptors.
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Liu B, Chen XB, Yang XH, Pan DF, Ma JK. 2-Anilino-3-(2-hy-droxy-phen-yl)quinazolin-4(3H)-one methanol monosolvate. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o2225-6. [PMID: 21588596 PMCID: PMC3008070 DOI: 10.1107/s1600536810030631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Accepted: 08/01/2010] [Indexed: 12/02/2022]
Abstract
In the title compound, C20H15N3O2·CH3OH, the quinazolinone ring system is approximately planar, the dihedral angle between the pyrimidinone ring and the adjacent benzene ring being 1.73 (6)°. The pyrimidinone ring makes dihedral angles of 77.58 (6) and 29.62 (6)°, respectively, with the hydroxyphenyl and phenyl rings. In the crystal, the components are connected by O—H⋯O and C—H⋯O hydrogen bonds, forming a zigzag chain along the b axis.
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Gao T, Chen XB, Yang XH, Wang X. 2-[2-(2-Anilino-4-oxo-3,4-dihydro-quinazolin-3-yl)phen-oxy]-3-phenyl-quinazolin-4(3H)-one methanol hemisolvate. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o2075-6. [PMID: 21588376 PMCID: PMC3007481 DOI: 10.1107/s1600536810028011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2010] [Accepted: 07/14/2010] [Indexed: 11/26/2022]
Abstract
In the title compound, C34H23N5O3·0.5CH3OH, each pyrimidinone heterocycle and its adjacent benzene ring are almost coplanar, making dihedral angles of 0.69 (13) and 1.87 (13)°. The lower pyrimidinone ring makes a dihedral angle of 40.41 (15)° with the —NH— bonded phenyl ring. O—H⋯O hydrogen bonds and weak C—H⋯π interactions are observed in the crystal structure. The methanol solvent molecule is disordered over two positions of equal occupancy.
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16
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Wu MH, Hu JH, Shen DS, Brémond P, Guo H. Regiospecific synthesis of 6-aryl-3-cyano-5-alkylamino/arylamino-1-p-tolyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-ones via iminophosphorane-mediated annulation. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.04.114] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Cai ZH, Chen XB, Yang XH, Wang X. 3-(2-Amino-eth-yl)-2-[4-(trifluoro-meth-oxy)anilino]quinazolin-4(3H)-one. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o1854-5. [PMID: 21588052 PMCID: PMC3006720 DOI: 10.1107/s1600536810024645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2010] [Accepted: 06/23/2010] [Indexed: 11/25/2022]
Abstract
In the title compound, C17H15F3N4O2, the dihedral angle between the trifluoromethoxy-substituted benzene ring and the pyrimidinone ring is 45.1 (5)°, while that between the fused benzene ring and the pyrimidinone ring is 0.67 (1)°. Part of one of the benzene rings and its trifluoromethoxy substituent are disordered over two positions of approximately equal occupancy (0.51:0.49). Intermolecular N—H⋯O and N—H⋯N hydrogen bonds contribute to the stability of the crystal structure. A weak intramolecular C—H⋯F contact is also found. In addition, π–π stacking interactions, with centroid–centroid distances in the range 3.673 (6)–3.780 (8) Å, and weak C—H⋯π interactions are also observed.
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18
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Hirota S, Sakai T, Kitamura N, Kubokawa K, Kutsumura N, Otani T, Saito T. Synthesis of nitrogen heterocycle-fused 1,2,4-benzothiadiazine-1,1-dioxide, quinazolinone, and pyrrolidinone derivatives with a guanidine joint via sequential aza-Wittig reaction/intramolecular NH-addition cyclization/nucleophilic substitution ring closure methodology, using functionalyzed carbodiimides as key intermediates. Tetrahedron 2010. [DOI: 10.1016/j.tet.2009.11.064] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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19
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Zhang Q, Jiao YH, Liu B, Chen XM, Ruan M, Xu LH. 2-(4-Fluoro-anilino)-3-(2-hydroxy-ethyl)quinazolin-4(3H)-one. Acta Crystallogr Sect E Struct Rep Online 2009; 65:o638. [PMID: 21582287 PMCID: PMC2968625 DOI: 10.1107/s1600536809006254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2008] [Accepted: 02/20/2009] [Indexed: 05/30/2023]
Abstract
The mol-ecular and crystal structures of the title compound, C(16)H(14)FN(3)O(2), are stabilized by intra-molecular N-H⋯O and inter-molecular O-H⋯O hydrogen bonds. The existence of non-classical intra-molecular C-H⋯N hydrogen bonds provides a dihedral angle between the fluoro-substituted benzene and pyrimidinone rings of 7.9 (1)°.
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Affiliation(s)
- Qian Zhang
- School of Chemistry and Material Engineering, Huangshi Institute of Technology, Huangshi 435003, People’s Republic of China
| | - Yuan-Hong Jiao
- School of Chemistry and Material Engineering, Huangshi Institute of Technology, Huangshi 435003, People’s Republic of China
| | - Bin Liu
- School of Chemistry and Material Engineering, Huangshi Institute of Technology, Huangshi 435003, People’s Republic of China
| | - Xue-Mei Chen
- School of Chemistry and Material Engineering, Huangshi Institute of Technology, Huangshi 435003, People’s Republic of China
| | - Min Ruan
- School of Chemistry and Material Engineering, Huangshi Institute of Technology, Huangshi 435003, People’s Republic of China
| | - Ling-Hua Xu
- School of Chemistry and Material Engineering, Huangshi Institute of Technology, Huangshi 435003, People’s Republic of China
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Yang HZ, Gao HT, Yang XH. 3,3'-Bis(4-chloro-phen-yl)-2,2'-(m-phenyl-enedi-oxy)diquinazolin-4(3H)-one. Acta Crystallogr Sect E Struct Rep Online 2008; 65:o59-60. [PMID: 21581700 PMCID: PMC2967973 DOI: 10.1107/s1600536808040567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2008] [Accepted: 12/02/2008] [Indexed: 11/10/2022]
Abstract
In the title compound, C(34)H(20)Cl(2)N(4)O(4), the two quinazoline heterocyclic systems and the adjacent chloro-benzene rings are not coplanar, but oriented at dihedral angles of 66.66 (13) and 52.48 (12)°, respectively. The quinazoline ring systems are nearly planar, with dihedral angles between the planes of the two rings of 5.43 (16) and 3.40 (14)°, and are oriented at dihedral angles of 79.73 (13) and 83.52 (13)° with respect to the adjacent benzene ring between them. Inter-molecular C-H⋯O hydrogen bonds contribute to the stability of the structure. In addition, weak π-π stacking inter-actions [centroid-to-centroid distances = 3.872 (1) and 3.876 (1) Å] are observed in the crystal structure.
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21
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Yang XH, Chen XB, Zhou SX. 3-(2-Amino-ethyl)-2-(4-chloro-anilino)-quinazolin-4(3H)-one methanol 0.75-solvate. Acta Crystallogr Sect E Struct Rep Online 2008; 65:o185-6. [PMID: 21581640 PMCID: PMC2968094 DOI: 10.1107/s160053680804049x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2008] [Accepted: 12/02/2008] [Indexed: 05/26/2023]
Abstract
In the asymmetric unit of the title compound, C(16)H(15)ClN(4)O·0.75CH(3)OH, there are two independent quinazolin-4(3H)-one mol-ecules and one and a half methanol mol-ecules. One of the methanol mol-ecules is disordered over two positions with equal occupancies. The dihedral angles between the quinazoline ring system and the chloro-benzene ring in the two quinazolin-4(3H)-one mol-ecules are essentially the same, at 39.83 (1) and 39.84 (1)°. Intra-molecular N-H⋯N and O-H⋯O, and inter-molecular N-H⋯O and N-H⋯N hydrogen bonds are observed. In addition, π-π stacking inter-actions, with centroid-to-centroid distances of 3.654 (1), 3.766 (1) and 3.767 (1) Å, and weak C-H⋯π inter-actions, are observed.
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22
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Zhang GF, Ma Z, Yang XH. 3-(2-Hydroxy-ethyl)-2-(p-tolyl-amino)-quinazolin-4(3H)-one. Acta Crystallogr Sect E Struct Rep Online 2008; 65:o34-5. [PMID: 21581677 PMCID: PMC2967952 DOI: 10.1107/s1600536808040440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2008] [Accepted: 12/01/2008] [Indexed: 11/10/2022]
Abstract
In the title compound, C17H17N3O2, the quinazolinone ring system is essentially planar. The benzene ring is twisted with respect to it by a dihedral angle of 32.7 (5)°. The molecular conformation is stabilized by an N—H⋯O hydrogen bond, and the crystal structure is stabilized by intermolecular O—H⋯N interactions.
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23
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Wang HL, Yang XH, Wu MH. 2-(4-Chloro-anilino)-3-(2-hydroxy-ethyl)quinazolin-4(3H)-one. Acta Crystallogr Sect E Struct Rep Online 2008; 64:o2325. [PMID: 21581300 PMCID: PMC2959957 DOI: 10.1107/s1600536808036623] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2008] [Accepted: 11/07/2008] [Indexed: 11/10/2022]
Abstract
In the title mol-ecule, C(16)H(14)ClN(3)O(2), the dihedral angle between the chloro-phenyl and pyrimidinone rings is 14.8 (1)°, while the dihedral angle between the fused benzene ring and the pyrimidinone ring is 3.8 (1)°. In the crystal structure, intra-molecular N-H⋯O hydrogen bonds, together with inter-molecular O-H⋯O hydrogen-bonding inter-actions, are present.
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Affiliation(s)
- Hong-Ling Wang
- Faculty of Chemistry and Life Science, Xianning University, Xianning 437100, People's Republic of China
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24
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Yang XH, Wu MH. 3-(2-Amino-ethyl)-2-(4-fluoroanilino)-quinazolin-4(3H)-one. Acta Crystallogr Sect E Struct Rep Online 2008; 64:o2240. [PMID: 21581094 PMCID: PMC2959735 DOI: 10.1107/s1600536808035058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2008] [Accepted: 10/28/2008] [Indexed: 12/04/2022]
Abstract
In the title molecule, C16H15FN4O, the dihedral angle between the fluoro-substituted benzene ring and the pyrimidinone ring is 52.34 (7)°, while the dihedral angle between the fused benzene ring and the pyrimidinone ring is 3.30 (6)°. An intramolecular N—H⋯N hydrogen bond may, in part, influence the conformation of the molecule. In the crystal structure, intermolecular N—H⋯N hydrogen bonds and weak C—H⋯π(arene) interactions link pairs of molecules into centrosymmetric dimers.
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Affiliation(s)
- Xu-Hong Yang
- Faculty of Chemistry and Life Science, Xianning University, Xianning 437100, People's Republic of China
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