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Gadde S, Kleynhans A, Holien JK, Bhadbhade M, Nguyen PLD, Mittra R, Yu TT, Carter DR, Parker MW, Marshall GM, Cheung BB, Kumar N. Pyrimido[1,2-a]benzimidazoles as inhibitors of oncoproteins ubiquitin specific protease 5 and MYCN in the childhood cancer neuroblastoma. Bioorg Chem 2023; 136:106462. [PMID: 37060785 DOI: 10.1016/j.bioorg.2023.106462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 02/16/2023] [Accepted: 03/07/2023] [Indexed: 03/31/2023]
Abstract
The MYCN oncogene and histone deacetylases (HDACs) are key driver genes in the childhood cancer, neuroblastoma. We recently described a novel pyridobenzimidazole analogue, SE486-11, which enhanced the therapeutic effectiveness of HDAC inhibitors by increasing MYCN ubiquitination through effects on the deubiquitinase, ubiquitin-specific protease 5 (USP5). Here we describe the synthesis of a novel series of pyrimido[1,2-a]benzimidazole derivatives, and an evaluation of their cytopathic effects against non-malignant and human neuroblastoma cell lines. Among the tested analogues, 4-(4-methoxyphenyl)benzo[4,5]imidazo[1,2-a]pyrimidine (3a) was the most active compound against neuroblastoma cells (IC50 ≤ 2 µM), with low cytotoxicity (IC50 ≥ 15 µM) to normal cells. We show compound 3a bound to USP5 protein (Kd = 0.47 µM) in vitro and synergistically enhanced the efficacy of HDAC inhibitors against neuroblastoma cells. Moreover, knockdown of USP5 and MYCN in treated neuroblastoma cells showed that both USP5 and MYCN expression was necessary for the cytopathic activity of compound 3a, thus providing a clinically relevant rationale for further development of this of pyrimido[1,2-a]benzimidazole.
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Affiliation(s)
- Satyanarayana Gadde
- School of Chemistry, UNSW Sydney, NSW 2052, Australia; Children's Cancer Institute Australia for Medical Research, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Ane Kleynhans
- Children's Cancer Institute Australia for Medical Research, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Jessica K Holien
- School of Science, STEM College, RMIT University, Melbourne, VIC 3001, Australia
| | | | | | - Ritu Mittra
- Children's Cancer Institute Australia for Medical Research, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Tsz Tin Yu
- School of Chemistry, UNSW Sydney, NSW 2052, Australia
| | - Daniel R Carter
- Children's Cancer Institute Australia for Medical Research, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW 2052, Australia; School of Biomedical Engineering, University of Technology Sydney, Australia
| | - Michael W Parker
- School of Science, STEM College, RMIT University, Melbourne, VIC 3001, Australia
| | - Glenn M Marshall
- Children's Cancer Institute Australia for Medical Research, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW 2052, Australia; Kids Cancer Centre, Sydney Children's Hospital, Randwick, NSW, Australia.
| | - Belamy B Cheung
- Children's Cancer Institute Australia for Medical Research, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW 2052, Australia; School of Clinical Medicine, UNSW Medicine & Health, UNSW Sydney, NSW, Australia.
| | - Naresh Kumar
- School of Chemistry, UNSW Sydney, NSW 2052, Australia.
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Shatokhin SS, Tuskaev VA, Gagieva SC, Oganesyan ÉT. Synthesis of heterocyclic analogs of isoflavone and homoisoflavone based on 3-formylchromone. Russ Chem Bull 2021; 70:1011-1045. [PMID: 34305378 PMCID: PMC8279107 DOI: 10.1007/s11172-021-3183-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/13/2020] [Accepted: 11/03/2020] [Indexed: 10/24/2022]
Abstract
The review is focused on recent developments of chemistry of synthetic analogs of natural compounds, isoflavone and homoisoflavone. The possible synthetic strategies to access heterocyclic analogs of these compounds starting from readily available 3-formylchromone and its derivatives (3-cyanochromone, 2-amino-3-formylchromone) and products of its condensation with simplest C- and N-nucleophiles are discussed. The structural features of the reaction products that depend on the nature of the reaction medium, structure of the starting compounds, and reagent ratio are considered. Particular attention is given to the application of the modern strategies of organic synthesis, namely green chemistry approaches, click reactions, domino reactions, etc. Examples of compounds of this group most promising for clinical application due to wide and pronounced pharmacological effects are given.
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Affiliation(s)
- S. S. Shatokhin
- Pyatigorsk Medical and Pharmaceutical Institute, branch of the Volgograd State Medical University of the Ministry of Health of the Russian Federation, 11 prosp. Kalinina, 357532 Pyatigorsk, Russian Federation
| | - V. A. Tuskaev
- Department of Chemistry, Lomonosov Moscow State University, 1 Buld. 3, Leninskie Gory, 119991 Moscow, Russian Federation
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991 Moscow, Russian Federation
| | - S. Ch. Gagieva
- Department of Chemistry, Lomonosov Moscow State University, 1 Buld. 3, Leninskie Gory, 119991 Moscow, Russian Federation
| | - É. T. Oganesyan
- Pyatigorsk Medical and Pharmaceutical Institute, branch of the Volgograd State Medical University of the Ministry of Health of the Russian Federation, 11 prosp. Kalinina, 357532 Pyatigorsk, Russian Federation
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Imtiaz S, Ahmad War J, Banoo S, Khan S. α-Aminoazoles/azines: key reaction partners for multicomponent reactions. RSC Adv 2021; 11:11083-11165. [PMID: 35423648 PMCID: PMC8695948 DOI: 10.1039/d1ra00392e] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 02/23/2021] [Indexed: 12/28/2022] Open
Abstract
Aromatic α-aminoazaheterocycles are the focus of significant investigations and exploration by researchers owing to their key role in diverse biological and physiological processes. The existence of their derivatives in numerous drugs and alkaloids is due to their heterocyclic nitrogenous nature. Therefore, the synthesis of a structurally diverse range of their derivatives through simple and convenient methods represents a vital field of synthetic organic chemistry. Multicomponent reactions (MCRs) provide a platform to introduce desirable structure diversity and complexity into a molecule in a single operation with a significant reduction in the use of harmful organic waste, and hence have attracted particular attention as an excellent tool to access these derivatives. This review covers the advances made from 2010 to the beginning of 2020 in terms of the utilization of α-aminoazaheterocycles as synthetic precursors in MCRs.
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Affiliation(s)
- Shah Imtiaz
- Department of Chemistry, Aligarh Muslim University Aligarh India-202002
| | - Jahangir Ahmad War
- Department of Chemistry, National Institute of Technology Kashmir India-190006
| | - Syqa Banoo
- Department of Chemistry, Mangalayatan University Beswan Aligarh India-202146
| | - Sarfaraz Khan
- Department of Chemistry, Aligarh Muslim University Aligarh India-202002
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Mei H, Yin Z, Liu J, Sun H, Han J. Recent Advances on the Electrochemical Difunctionalization of Alkenes/Alkynes. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201800529] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Haibo Mei
- College of Chemical Engineering, Nanjing Forestry University Nanjing Jiangsu 210037 China
| | - Zizhen Yin
- College of Chemical Engineering, Nanjing Forestry University Nanjing Jiangsu 210037 China
| | - Jiang Liu
- College of Chemical Engineering, Nanjing Forestry University Nanjing Jiangsu 210037 China
| | - Hailong Sun
- Nanjing Research Institute of Sinopec Yangzi Petrochemical Co., Ltd Nanjing Jiangsu 210048 China
| | - Jianlin Han
- College of Chemical Engineering, Nanjing Forestry University Nanjing Jiangsu 210037 China
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Lim FPL, Tan LY, Tiekink ERT, Dolzhenko AV. A one-pot, multicomponent reaction for the synthesis of novel 2-alkyl substituted 4-aminoimidazo[1,2- a][1,3,5]triazines. RSC Adv 2018; 8:21495-21504. [PMID: 35539915 PMCID: PMC9080918 DOI: 10.1039/c8ra03703e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 06/03/2018] [Indexed: 02/02/2023] Open
Abstract
A highly selective, one-pot, three-component synthesis of novel 2-alkyl-substituted 4-aminoimidazo[1,2-a][1,3,5]triazines has been developed. The scope of the method was explored in two dimensions, varying the structures of trialkyl orthoesters and 2-aminoimidazoles in their reactions with cyanamide. Conveniently performed under microwave irradiation, this method was also proved to be efficient under conventional heating. A library of 24 novel compounds was prepared in high purity using this multicomponent approach. Molecular and crystal structures of representative molecules were studied using X-ray crystallography.
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Affiliation(s)
- Felicia Phei Lin Lim
- School of Pharmacy, Monash University Malaysia Jalan Lagoon Selatan, Bandar Sunway Selangor Darul Ehsan 47500 Malaysia +60-3-5514-6364 +60-3-5514-5867
| | - Lin Yuing Tan
- School of Pharmacy, Monash University Malaysia Jalan Lagoon Selatan, Bandar Sunway Selangor Darul Ehsan 47500 Malaysia +60-3-5514-6364 +60-3-5514-5867
| | - Edward R T Tiekink
- Research Centre for Crystalline Materials, School of Science and Technology, Sunway University Bandar Sunway Selangor Darul Ehsan 47500 Malaysia
| | - Anton V Dolzhenko
- School of Pharmacy, Monash University Malaysia Jalan Lagoon Selatan, Bandar Sunway Selangor Darul Ehsan 47500 Malaysia +60-3-5514-6364 +60-3-5514-5867
- School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University GPO Box U1987 Perth Western Australia 6845 Australia
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