1
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Naikoo RA, Kumar R, Kumar V, Bhargava G. Recent Developments in the Synthesis of Bicyclic Condensed Pyrimidinones. CURR ORG CHEM 2022. [DOI: 10.2174/1385272826666220112152330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
Functionalized bicyclic pyrimidinones and their derivatives are significant heterocyclic scaffolds being their all-around prevalence in biologically potent compounds. In several attempts to explore the different synthetic methodologies for the construction of bicyclic condensed pyrimidinones, different researchers from all across the globe have reported numerous substantial methods. In the present review, considerable work has been critically compiled on the synthesis of substituted and functionalized bicyclic pyrimidinones from 2000 onwards.
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Affiliation(s)
- Rayees Ahmad Naikoo
- Department of Chemical Sciences, IKG Punjab Technical University, Kapurthala 144603, Punjab, India
| | - Rupesh Kumar
- Department of Chemical Sciences, IKG Punjab Technical University, Kapurthala 144603, Punjab, India
| | - Vipan Kumar
- Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, Punjab, India
| | - Gaurav Bhargava
- Department of Chemical Sciences, IKG Punjab Technical University, Kapurthala 144603, Punjab, India
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2
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Naikoo RA, Kumar R, Singh P, Bhargava G. 7- Endo-trigPictet–Spengler type cyclization of 5-alkylidene/arylidene-amino-3H-pyrimidin-4-ones: An efficient and diastereoselective synthesis of pyrimido[4,5-b] [1,4]benzodiazepines. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1878224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Rayees Ahmad Naikoo
- Department of chemical sciences, I. K. Gujral Punjab Technical University Kapurthala, Punjab, India
| | - Rupesh Kumar
- Department of chemical sciences, I. K. Gujral Punjab Technical University Kapurthala, Punjab, India
| | - Parvesh Singh
- School of Chemistry and Physics, University of KwaZulu Natal, Durban, South Africa
| | - Gaurav Bhargava
- Department of chemical sciences, I. K. Gujral Punjab Technical University Kapurthala, Punjab, India
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3
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Wu D, Zhang X, Li Y, Ying S, Zhu L, Li Z, Yang G, Van der Eycken EV. Divergent Access to Imidazopyrazinones and Imidazodiazepinones by Regioswitchable Post-Ugi Heteroannulation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901511] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Danjun Wu
- College of Pharmaceutical Science; Zhejiang University of Technology; 18 Chaowang Road 310014 Hangzhou China
| | - Xueling Zhang
- College of Pharmaceutical Science; Zhejiang University of Technology; 18 Chaowang Road 310014 Hangzhou China
| | - Yi Li
- College of Pharmaceutical Science; Zhejiang University of Technology; 18 Chaowang Road 310014 Hangzhou China
| | - Sanjun Ying
- College of Pharmaceutical Science; Zhejiang University of Technology; 18 Chaowang Road 310014 Hangzhou China
| | - Lixi Zhu
- College of Pharmaceutical Science; Zhejiang University of Technology; 18 Chaowang Road 310014 Hangzhou China
| | - Zhenghua Li
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; KU Leuven; Celestijnenlaan 200F 3001 Leuven Heverlee Belgium
| | - Gensheng Yang
- College of Pharmaceutical Science; Zhejiang University of Technology; 18 Chaowang Road 310014 Hangzhou China
| | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; KU Leuven; Celestijnenlaan 200F 3001 Leuven Heverlee Belgium
- Peoples Friendship University of Russia (RUDN University); 117198 Moscow Russia
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4
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Synthesis, structural and molecular characterization of 2,2-diphenyl-2H,3H,5H,6H,7H-imidazo[2,1-b][1,3]thiazin-3-one. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.07.081] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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5
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5-(1-Aryl-3-(thiophen-2-yl)-1H-pyrazol-4-yl)-1H-tetrazoles: Synthesis, structural characterization, Hirshfeld analysis, anti-inflammatory and anti-bacterial studies. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.01.047] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Akbarzadeh M, Bakavoli M, Eshghi H, Shiri A. Synthesis of Novel Derivatives of (Benz)Imidazo[2,1-b]Pyrimido[4,5-d][1,3]Thiazine. JOURNAL OF CHEMICAL RESEARCH 2017. [DOI: 10.3184/174751917x15132496997778] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Several derivatives of the novel heterocyclic systems 2-substituted-imidazo- and benzimidazo-[2,1- b]pyrimido[4,5- d][1,3]thiazine have been synthesised through the one-pot cyclocondensation of 2,4-dichloro-5-(chloromethyl)-6-methylpyrimidine with imidazolidine-2-thione and 1 H-benzimidazole-2(3 H)-thione and subsequently substituted by various secondary amines in moderately good yields.
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Affiliation(s)
- Marzieh Akbarzadeh
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, 91775-1436 Mashhad, Iran
| | - Mehdi Bakavoli
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, 91775-1436 Mashhad, Iran
| | - Hossein Eshghi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, 91775-1436 Mashhad, Iran
| | - Ali Shiri
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, 91775-1436 Mashhad, Iran
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7
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Sharma R, Mohan C. A Facile and Chemoselective Synthesis of Novel Pyrimido[5,4‐
b
][1,4]thiazines by
exo
‐dig Iodocyclization Reactions. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2773] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Rashmi Sharma
- Amritsar College of Engineering and Technology Amritsar 143001 Punjab India
- Department of RICIKG Punjab Technical University Kapurthala 144601 Punjab India
| | - Chander Mohan
- Rayat Bharha College of Pharmacy Hoshiarpur Punjab India
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8
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Affiliation(s)
| | - Bakr F. Abdel-Wahab
- Chemical Industries Division, National Research Centre, Dokki, Giza, Egypt
- Chemistry Department, Faculty of Science Shaqra University, Al Dawadmi, Saudi Arabia
| | - Rizk E. Khidre
- Chemistry Department, Faculty of Science, Jazan University, Jazan, Saudi Arabia
- Chemical Industries Division, National Research Centre, Dokki, Giza, Egypt
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9
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El Assyry A, Benali B. Theoretical study of the interaction between benzodiazepine derivatives and water by use of AMYR calculations. RESEARCH ON CHEMICAL INTERMEDIATES 2014. [DOI: 10.1007/s11164-012-0988-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Rempel V, Atzler K, Behrenswerth A, Karcz T, Schoeder C, Hinz S, Kaleta M, Thimm D, Kiec-Kononowicz K, Müller CE. Bicyclic imidazole-4-one derivatives: a new class of antagonists for the orphan G protein-coupled receptors GPR18 and GPR55. MEDCHEMCOMM 2014. [DOI: 10.1039/c3md00394a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
GPR18 and GPR55 are orphan G protein-coupled receptors (GPCRs) that interact with certain cannabinoid (CB) receptor ligands.
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Affiliation(s)
- V. Rempel
- PharmaCenter Bonn
- Pharmaceutical Institute
- Pharmaceutical Chemistry I
- D-53121 Bonn, Germany
| | - K. Atzler
- PharmaCenter Bonn
- Pharmaceutical Institute
- Pharmaceutical Chemistry I
- D-53121 Bonn, Germany
| | - A. Behrenswerth
- PharmaCenter Bonn
- Pharmaceutical Institute
- Pharmaceutical Chemistry I
- D-53121 Bonn, Germany
| | - T. Karcz
- PharmaCenter Bonn
- Pharmaceutical Institute
- Pharmaceutical Chemistry I
- D-53121 Bonn, Germany
- Department of Technology and Biotechnology of Drugs
| | - C. Schoeder
- PharmaCenter Bonn
- Pharmaceutical Institute
- Pharmaceutical Chemistry I
- D-53121 Bonn, Germany
| | - S. Hinz
- PharmaCenter Bonn
- Pharmaceutical Institute
- Pharmaceutical Chemistry I
- D-53121 Bonn, Germany
| | - M. Kaleta
- Department of Technology and Biotechnology of Drugs
- Jagiellonian University Medical College
- Faculty of Pharmacy
- Kraków, Poland
| | - D. Thimm
- PharmaCenter Bonn
- Pharmaceutical Institute
- Pharmaceutical Chemistry I
- D-53121 Bonn, Germany
| | - K. Kiec-Kononowicz
- Department of Technology and Biotechnology of Drugs
- Jagiellonian University Medical College
- Faculty of Pharmacy
- Kraków, Poland
| | - C. E. Müller
- PharmaCenter Bonn
- Pharmaceutical Institute
- Pharmaceutical Chemistry I
- D-53121 Bonn, Germany
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11
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Pepino AJ, Peláez WJ, Faillace MS, Ceballos NM, Moyano EL, Argüello GA. (S)-5-Benzyl- and 5-benzylidene-imidazo-4-one derivatives synthesized and studied for an understanding of their thermal reactivity. RSC Adv 2014. [DOI: 10.1039/c4ra11046c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Static and flash vacuum pyrolysis were used to get insight into the mechanisms of decomposition of 3-(2-chloroethyl)imidazolidine-2,4-dione and 2,3-dihydroimidazo[2,1-b]thiazol-5(6H)-one derivatives.
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Affiliation(s)
- A. J. Pepino
- INFIQC-Dpto. de Fisicoquímica
- Facultad de Ciencias Químicas
- UNC
- , Argentina
| | - W. J. Peláez
- INFIQC-Dpto. de Fisicoquímica
- Facultad de Ciencias Químicas
- UNC
- , Argentina
| | - M. S. Faillace
- INFIQC-Dpto. de Fisicoquímica
- Facultad de Ciencias Químicas
- UNC
- , Argentina
| | - N. M. Ceballos
- INFIQC-Dpto. de Fisicoquímica
- Facultad de Ciencias Químicas
- UNC
- , Argentina
| | - E. L. Moyano
- INFIQC-Dpto. de Química Orgánica
- Facultad de Ciencias Químicas
- UNC
- , Argentina
| | - G. A. Argüello
- INFIQC-Dpto. de Fisicoquímica
- Facultad de Ciencias Químicas
- UNC
- , Argentina
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12
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Hao W, Zeng J, Cai M. The copper(i)-catalyzed tandem reaction of o-alkynylphenyl isothiocyanates with isocyanides: a rapid synthesis of 5H-benzo[d]imidazo[5,1-b][1,3]thiazines. Chem Commun (Camb) 2014; 50:11686-9. [DOI: 10.1039/c4cc04057k] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient route to 5H-benzo[d]imidazo[5,1-b][1,3]thiazines has been developed using the copper(i)-catalyzed tandem reaction of o-alkynylphenyl isothiocyanates with isocyanides in THF with Cs2CO3 as base.
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Affiliation(s)
- Wenyan Hao
- College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022, People's Republic of China
| | - Jiangbo Zeng
- College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022, People's Republic of China
| | - Mingzhong Cai
- College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022, People's Republic of China
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13
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Han J, Dong H, Xu Z, Wang J, Wang M. Synthesis and activity of novel acylthiourea with hydantoin. Int J Mol Sci 2013; 14:19526-39. [PMID: 24077124 PMCID: PMC3821571 DOI: 10.3390/ijms141019526] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 08/29/2013] [Accepted: 09/18/2013] [Indexed: 01/20/2023] Open
Abstract
The 41 novel acylthiourea derivatives with hydantoin were synthesized in moderate to excellent yields by using 5-(4-aminophenyl)- and 5-(4-aminobenzyl)- hydantoin or 5-(4-aminobenzyl)-thiohydantoin as raw materials and characterized by IR, 1H NMR spectra and elementary analysis. The preliminary bioassay showed that these compounds exhibit certain selectively herbicidal activities with the 91%, 94% and 87% inhibition rates of 7l, 8o and 8p against B. campestris, 100%, 100% and 95% efficacy against B. campestris in a greenhouse test, respectively. 7a, 7b, 7c and 7d exhibited 74%, 79%, 79% and 71% inhibition rates against F. oxysporum, respectively.
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Affiliation(s)
- Jintao Han
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China; E-Mails: (J.H.); (H.D.); (Z.X.); (J.W.)
| | - Hongbo Dong
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China; E-Mails: (J.H.); (H.D.); (Z.X.); (J.W.)
| | - Zhihong Xu
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China; E-Mails: (J.H.); (H.D.); (Z.X.); (J.W.)
- College of Agricuture, Yangtze University, Jingzhou 434025, Hubei, China
| | - Jinmin Wang
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China; E-Mails: (J.H.); (H.D.); (Z.X.); (J.W.)
| | - Mingan Wang
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China; E-Mails: (J.H.); (H.D.); (Z.X.); (J.W.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +86-10-6273-4093; Fax: +86-10-6273-7732
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14
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Facile synthesis of 5-arylidene thiohydantoin by sequential sulfonylation/desulfination reaction. Int J Mol Sci 2013; 14:12484-95. [PMID: 23765221 PMCID: PMC3709795 DOI: 10.3390/ijms140612484] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Revised: 05/28/2013] [Accepted: 05/29/2013] [Indexed: 11/29/2022] Open
Abstract
The sequential sulfonylation/desulfination reactions of 5-benzylthiohydantoin with excess arylsulfonyl chlorides in the presence of triethylamine have been developed to afford a wide range of 5-arylidene thiohydantoin derivatives in moderate to excellent yields. A plausible sulfonylation/desulfination mechanism was proposed. The bioassay showed that these compounds exhibit certain fungicidal activities with the 71.9% inhibition rate of 2K against B. cinerea, and 57.6% inhibition rate of 2m against A. solani, respectively.
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15
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Siddiqui IR, Srivastava A, Shamim S, Srivastava A, Shireen, Waseem MA, Abumhdi AAH, Rahila, Srivastava A, Rai P, Singh RKP. Ionic-liquid-promoted Four-component One-pot Synthesis of Highly Functionalized Benzimidazo[2,1-b][1,3]thiazines: Facile Construction ofN-fused Heterocycles. ASIAN J ORG CHEM 2013. [DOI: 10.1002/ajoc.201300049] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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16
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Kumar A, Li Z, Sharma SK, Parmar VS, Eycken EVVD. An Expedient Route to Imidazo[1,4]diazepin-7-ones via A Post-Ugi Gold-Catalyzed Heteroannulation. Org Lett 2013; 15:1874-7. [DOI: 10.1021/ol400526a] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Amit Kumar
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, B-3001 Leuven, Belgium, and Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi-110 007, India
| | - Zhenghua Li
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, B-3001 Leuven, Belgium, and Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi-110 007, India
| | - Sunil K. Sharma
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, B-3001 Leuven, Belgium, and Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi-110 007, India
| | - Virinder S. Parmar
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, B-3001 Leuven, Belgium, and Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi-110 007, India
| | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, B-3001 Leuven, Belgium, and Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi-110 007, India
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17
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Wan W, Hou J, Jiang H, Wang Y, Zhu S, Deng H, Hao J. Concise synthesis of ω-fluoroalkylated ketoesters. A building block for the synthesis of six-, seven-, and eight-membered fluoroalkyl substituted 1,2-diaza-3-one heterocycles. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.03.029] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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18
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Książek W, Kieć-Kononowicz K, Karolak-Wojciechowska J. Crystal and molecular structure of 5-benzylidene-2-thiohydantoin: The S…S intermolecular interactions between two CS groups. J Mol Struct 2009. [DOI: 10.1016/j.molstruc.2008.12.060] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Kumar R, Chauhan PM. A one-pot chemoselective S-alkylation and acetylation of thiohydantoins using the alkyl orthoformate–ZnCl2–Ac2O reagent system. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.07.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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20
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Synthesis of some 3,4-disubstituted-6,7-dihydro-imidazo[2,1-b][1,3]thiazole and 3,4-disubstituted-7,8-dihydro-6H-imidazo[2,1-b][1,3]thiazine derivatives and evaluation of their cytotoxicities against F2408 and 5RP7 cells. Med Chem Res 2008. [DOI: 10.1007/s00044-008-9090-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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21
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Gao F, Zhang G, Zhang S, Cheng Y, Shi Z, Li Y, Gao J. Different N–C–N formation reactions of aromatic aldehydes and thiohydantoins controlled by Lewis acid promoters. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.03.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Elassyry A, Benali B, Lazar Z, Elblidi K, Lakhrissi B, Massoui M, Mondieig D. Solvent effect dependence of the dual fluorescence of N,N-dimethylbenzodiazepine. J Mol Liq 2006. [DOI: 10.1016/j.molliq.2005.06.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Kieć-Kononowicz K, Karolak-Wojciechowska J, Michalak B, Pekala E, Schumacher B, Müller CE. Imidazo[2,1-b]thiazepines: synthesis, structure and evaluation of benzodiazepine receptor binding. Eur J Med Chem 2004; 39:205-18. [PMID: 15051168 DOI: 10.1016/j.ejmech.2003.11.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2001] [Revised: 11/10/2003] [Accepted: 11/14/2003] [Indexed: 10/26/2022]
Abstract
As a continuation of our search for new ligands acting on benzodiazepine receptors among the fused 2-thiohydantoin derivatives, a series of 5-substituted imidazo[2,1-b]thiazepines was synthesized and investigated in radioligand binding studies at the benzodiazepine binding site of GABA(A) receptors in rat brain cortical membranes. Among ortho-substituted 5-arylidene-imidazo[2,1-b]thiazepines compounds could be identified which exhibit affinity for the benzodiazepine binding site at low micromolar concentrations. X-ray structure analyses for two compounds (6ae and 6ag) have been performed. In order to analyze the structure-activity relationships, 3D models of all compounds have been completed (using X-ray data). Physicochemical properties calculated (log P and log D) as well as experimental thin layer chromatography data were examined.
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Affiliation(s)
- Katarzyna Kieć-Kononowicz
- Department of Chemical Technology of Drugs, Jagiellonian University Medical College, ul Medyczna 9, PL 30-688 Kraków, Poland.
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24
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Mrozek A, Karolak-Wojciechowska J, Kieć-Kononowicz K. Five-membered heterocycles. Part III. Aromaticity of 1,3-imidazole in 5+n hetero-bicyclic molecules. J Mol Struct 2003. [DOI: 10.1016/s0022-2860(03)00282-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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25
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Landreau C, Deniaud D, Meslin JC. From thiourea to bicyclic structures: an original route to imidazo[2,1-b]thiazoles, 5H-thiazolo[3,2-a]pyrimidines, 7H-imidazo[2,1-b][1,3]thiazines, and 2H,6H-pyrimido[2,1-b][1,3]thiazines. J Org Chem 2003; 68:4912-7. [PMID: 12790599 DOI: 10.1021/jo034381l] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report an example of an efficient regioselective synthesis of biheterocyclic compounds using thiourea as starting material. In fact, N,N'-bis(dimethylaminomethylene)thiourea (1), easily prepared by double condensation of N,N-dimethylformamide dimethyl acetal with thiourea, can be reacted with haloketones or acrylic dienophiles to give thiazolic (2) and thiazinic (3) diazadienes, respectively, themselves undergoing cyclization reactions to yield imidazo[2,1-b]thiazoles, 5H-thiazolo[3,2-a]pyrimidines, 7H-imidazo[2,1-b][1,3]thiazines, and 2H,6H-pyrimido[2,1-b][1,3]thiazines without any regioisomeric ambiguity. This straightforward route represents an original and unambiguously regioselective pathway to these valuable heterocycles.
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Affiliation(s)
- Cyrille Landreau
- Laboratoire de Synthèse Organique, UMR CNRS 6513, Faculté des Sciences et des Techniques, 2 Rue de la Houssinière, 44322 Nantes Cedex 03, France
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26
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Kieć-Kononowicz K, Szymańska E. Antimycobacterial activity of 5-arylidene derivatives of hydantoin. FARMACO (SOCIETA CHIMICA ITALIANA : 1989) 2002; 57:909-16. [PMID: 12484539 DOI: 10.1016/s0014-827x(02)01292-2] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of various 5-arylidene-2-thiohydantoins and results of the primary assay in vitro for their antimycobacterial activity is reported. Eight of those compounds exhibited > 90% inhibition of Mycobacterium tuberculosis growth and for them the minimum inhibitory concentrations, cytotoxicity (IC50) and the selectivity index values were determined. The most active structure, (5Z)-5-(1,1'-biphenyl-4-ylmethylene)-2-thioxoimidazolidin-4-one, showed MIC = 0.78 microg/ml. For all compounds log P and log D (pH 6.5) values were calculated.
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Affiliation(s)
- K Kieć-Kononowicz
- Department of Chemical Technology of Drugs, Faculty of Pharmacy, Jagiellonian University Medical College, ul Medyczna 9, PL 30-688 Kraków, Poland.
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Kieć-Kononowicz K, Handzlik J, Lazewska D, Pȩkala E, Müller CE, Karolak-Wojciechowska J. Imidazo[2,1-b]thiazoles, imidazo[2,1-b]imidazoles and Pyrrolo[1,2-c]imidazoles. synthesis, structure and evaluation of benzodiazepine receptor binding. J Heterocycl Chem 2002. [DOI: 10.1002/jhet.5570390201] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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