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Liu Q, Liu Y, Liu T, Fan J, Xia Z, Zhou Y, Deng X. Expanding horizons of iminosugars as broad-spectrum anti-virals: mechanism, efficacy and novel developments. NATURAL PRODUCTS AND BIOPROSPECTING 2024; 14:55. [PMID: 39325109 PMCID: PMC11427655 DOI: 10.1007/s13659-024-00477-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2024] [Accepted: 09/14/2024] [Indexed: 09/27/2024]
Abstract
Iminosugars, a class of polyhydroxylated cyclic alkaloids with intriguing properties, hold promising therapeutic potentials against a broad spectrum of enveloped viruses, including DENV, HCV, HIV, and influenza viruses. Mechanistically, iminosugars act as the competitive inhibitors of host endoplasmic reticular α-glucosidases I and II to disrupt the proper folding of viral nascent glycoproteins, which thereby exerts antiviral effects. Remarkably, the glycoproteins of many enveloped viruses are significantly more dependent on the calnexin pathway of the protein folding than most host glycoproteins. Therefore, extensive interests and efforts have been devoted to exploit iminosugars as broad-spectrum antiviral agents. This review provides the summary and insights into the recent advancements in the development of novel iminosugars as effective and selective antiviral agents against a variety of enveloped viruses, as well as the understandings of their antiviral mechanisms.
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Affiliation(s)
- Qiantong Liu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan, China
| | - Yanyun Liu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan, China
| | - Tingting Liu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan, China
| | - Jinbao Fan
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan, China
| | - Zanxian Xia
- School of Life Science, Central South University, Changsha, 410013, Hunan, China
| | - Yingjun Zhou
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan, China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, 410013, Hunan, China
| | - Xu Deng
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan, China.
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, 410013, Hunan, China.
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2
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Zhou L, Cui Y, Huang X, Xie S, Wu J, Wei C, Li X, Chen H. One-Pot Stereoselective Synthesis of the Naphthofurano-Iminosugars via a [3 + 2] Cycloaddition Reaction. J Org Chem 2024; 89:13235-13242. [PMID: 39254576 DOI: 10.1021/acs.joc.4c01360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/11/2024]
Abstract
This study presents the synthesis of novel naphthofurano-iminosugars (4) using 2,3-O-isopropylidene D-ribose tosylate (1a), anilines (2), and 1,4-benzoquinone (3a) as starting materials through key iminium ion/enamine intermediates via [3 + 2] cyclization reactions at room temperature. The reaction has unique regioselectivity and stereoselectivity with moderate to excellent yields. The adaptability of this method has been demonstrated using various substituted anilines, on which both electron-donating and electron-withdrawing groups were well employed in the reactions. Notably, the treatment of the fused multicyclic iminosugar 4 with TFA efficiently leads to an interesting unexpected pyridinium salt (8), possible via four sequential steps: deprotection of the 2,3-O-isopropylidene group, furan ring opening, dehydration condensation of the OH groups, and elimination of water.
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Affiliation(s)
- Likai Zhou
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding, Hebei 071002, PR China
- Functional Polymer Materials R&D and Engineering Application Technology Innovation Center of Hebei, College of Chemical Engineering and Biotechnology, Xingtai University, Xingtai, Hebei 054001, PR China
| | - Yaxin Cui
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding, Hebei 071002, PR China
| | - Xiaoyan Huang
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding, Hebei 071002, PR China
| | - Song Xie
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding, Hebei 071002, PR China
| | - Jilai Wu
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding, Hebei 071002, PR China
| | - Chao Wei
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding, Hebei 071002, PR China
| | - Xiaoliu Li
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding, Hebei 071002, PR China
| | - Hua Chen
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Material Science, Hebei University, Baoding, Hebei 071002, PR China
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3
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Liu X, Li F, Su L, Wang M, Jia T, Xu X, Li X, Wei C, Luo C, Chen S, Chen H. Design and synthesis of novel benzimidazole-iminosugars linked a substituted phenyl group and their inhibitory activities against β-glucosidase. Bioorg Chem 2022; 127:106016. [PMID: 35841671 DOI: 10.1016/j.bioorg.2022.106016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 06/13/2022] [Accepted: 07/06/2022] [Indexed: 11/28/2022]
Abstract
A series of novel benzimidazole-iminosugars linked a (substuituted) phenyl group on benzene ring of benzimidazole 5(a-p) and 6(a-p) have been rationally designed and conveniently synthesized through Suzuki coupling reaction in high yields. All compounds have been evaluated for their inhibitory activities against β-glucosidase (almond). Six compounds 5d, 6d, 6e, 6i, 6n, and 6p showed more significant inhibitory activities with IC50 values in the range of 0.03-0.08 μM, almost 10-fold improved than that of the parent analogue 4, and much higher than that of the positive control castanospermine. The additional phenyl ring and the electron donating groups on it would be beneficial for the activity. Compounds 6d, 6n, and 4 had been chosen to be tested for their inhibition types against β-glucosidase. Interestingly, three compounds have different inhibition types although they had very similar structure. Their Ki values were calculated to be 0.02 ± 0.01 μM, 0.02 ± 0.01 μM, and 0.66 ± 0.14 μM, respectively. The equilibrium dissociation constant (KD) for 6d, 6n, and 4 and β-glucosidase was 0.04 μM, 0.03 μM and 0.45 μM by the ITC-based assay, respectively. Molecular docking work suggests that such benzimidazole-iminosugars derivatives might bind to the active site of β-glucosidase mainly through hydrogen bonds, the additional phenyl ring towards the solvent-exposed region played an important effect on their inhibitory activity against β-glucosidase.
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Affiliation(s)
- Xu Liu
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Fengxin Li
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Lulu Su
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Mingchen Wang
- The Center for Chemical Biology, Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China; School of Life Science and Technology, Shanghai Tech University, Shanghai 201210, China
| | - Tongguan Jia
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Xiaoming Xu
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Xiaoliu Li
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Chao Wei
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Cheng Luo
- The Center for Chemical Biology, Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shijie Chen
- The Center for Chemical Biology, Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hua Chen
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China.
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Ramya Sucharitha E, Krishna TM, Manchal R, Ramesh G, Narsimha S. Fused benzo[1,3]thiazine-1,2,3-triazole hybrids: Microwave-assisted one-pot synthesis, in vitro antibacterial, antibiofilm, and in silico ADME studies. Bioorg Med Chem Lett 2021; 47:128201. [PMID: 34139328 DOI: 10.1016/j.bmcl.2021.128201] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 06/03/2021] [Accepted: 06/10/2021] [Indexed: 11/19/2022]
Abstract
In this paper, we report an efficient one-pot three-component reaction sequences comprising Cu(I)-catalyzed 1,3-dipolar cycloaddition (CuAAC) followed by Cu-catalyzed arylation of resulting 1,2,3-triazole in the presence of ionic liquid [Emim]BF4 under microwave conditions involving. The newly synthesized derivatives were screened for in vitro antibacterial inhibition potency against both gram +ve and gram -ve strains. Among the tested compounds, 4f exhibited significant inhibition activity with MIC value 3.12 µg/mL against B. subtilis and S. epidermidis which is two-fold higher than the standard ciprofloxacin (6.25 µg/mL) and also displayed equipotent activity to that of the positive control against S. aureus with MIC value 6.25 µg/mL. Conjugates of the series viz. 3f and 4b against S. aureus, and 4e against E. coli have also displayed promising results with MIC values 6.25 µg/mL which is comparable to the ciprofloxacin. Also we report the anti-biofilm profiles for the potent compounds and it was observed from the results that the active derivatives 4b and 4f were not only potent antibacterial agents but also efficient inhibitors of B. subtilis and S. aureus biofilm growth. Furthermore, in silico-ADME and pharmacokinetic profiles demonstrated the druggability of the hybrids.
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Affiliation(s)
- E Ramya Sucharitha
- Department of Chemistry, Chaitanya Deemed to be University, Warangal 506 001, Telangana, India
| | - Thupurani Murali Krishna
- Department of Biotechnology, Chaitanya Deemed to be University, Warangal 506 001, Telangana, India
| | - Ravinder Manchal
- Department of Chemistry, Chaitanya Deemed to be University, Warangal 506 001, Telangana, India
| | - Gondru Ramesh
- Department of Chemistry, National Institute of Technology, Warangal 506 004, Telangana, India; Environmental Monitoring & Exposure Assessment (Air) Division, ICMR-NIREH, Bhopal 462 030, MP, India.
| | - Sirassu Narsimha
- Department of Chemistry, Chaitanya Deemed to be University, Warangal 506 001, Telangana, India.
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5
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Li F, Lu X, Liu X, Su L, Li X, Chen H. Structural Modification of Benzimidazole-Iminosugars and Their Inhibitory Activities against β-Glycosidases. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202105003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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6
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Liu X, Su L, Zhou Z, Niu L, Gao L, Ju H, Li F, Li X, Chen H. Design and Synthesis of Benzimidazole-Iminosugars and Their Inhibitory Activities against Glycosidases. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202101055] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Synthesis of tricyclic benzimidazole-iminosugars as potential glycosidase inhibitors via a Mitsunobu reaction. Carbohydr Res 2019; 485:107807. [DOI: 10.1016/j.carres.2019.107807] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 09/04/2019] [Accepted: 09/05/2019] [Indexed: 01/04/2023]
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8
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Sun J, Kang Y, Gao L, Lu X, Ju H, Li X, Chen H. Synthesis of tricyclic quinazolinone-iminosugars as potential glycosidase inhibitors via a Mitsunobu reaction. Carbohydr Res 2019; 478:10-17. [PMID: 31039450 DOI: 10.1016/j.carres.2019.04.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 04/09/2019] [Accepted: 04/14/2019] [Indexed: 12/20/2022]
Abstract
A series of novel tricyclic quinazolinone-iminosugars 1 (a-c) were synthesized from the benzyl protected sugars through three steps. Firstly, the benzyl protected sugar (aldehyde) 5 reacted with o-aminobenzamide by the iodine-induced oxidative condensation to afford the corresponding aldo-quizanolinone 6. Secondly, through the intramolecular cyclization of the unprotected OH and the amide NH in 6, the tricyclic compounds 7 and 8 were constructed by the key Mitsunobu reaction. Finally, removal of the benzyl group gave the target tricyclic quinazolinone-iminosugars 1. The protocol was effective for the preparation of the tricyclic iminosugars in satisfactory yield. Interestingly, an unusual C-2 epimerization was observed with d-mannose and d-ribose compounds under the conditions of the Mitsunobu reaction that generated the products having the trans configuration at the C-2 and C-3 positions. Unfortunately, such tricyclic quinazolinone-iminosugars showed no inhibitory effects on the tested five glycosidases.
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Affiliation(s)
- Jiajing Sun
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China
| | - Yaqing Kang
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China
| | - Ligang Gao
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China
| | - Xin Lu
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China
| | - Huanhuan Ju
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China
| | - Xiaoliu Li
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China
| | - Hua Chen
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China.
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9
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Ogurtsov VA, Karpychev YV, Nelyubina YV, Primakov PV, Koutentis PA, Rakitin OA. Synthesis of 6,7-Dihydropyrrolo[2,1-c
][1,3]thiazino[3,2-a
]pyrazine-4(11bH
)-(thi)ones from 1,2-Dithiolo-3-(thi)ones. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900142] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Vladimir A. Ogurtsov
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky Prospekt 119991 Moscow Russia
| | - Yury V. Karpychev
- JSC State Scientific Research Institute “Kristall”; 606007 Dzerzhinsk, Nizhny Novgorod Region Russian Federation
| | - Yulia V. Nelyubina
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; 119991 Moscow Russia
| | - Petr V. Primakov
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; 119991 Moscow Russia
- Department of Chemistry; Moscow State; 119899 Moscow Russia
| | | | - Oleg A. Rakitin
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky Prospekt 119991 Moscow Russia
- Nanotechnology Education and Research Center; South Ural State University; 454080 Chelyabinsk Russian Federation
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10
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Wen LR, Zhou CC, Zhu MZ, Xie SG, Guo WS, Li M. Intramolecular dehydrogenative C–S bond coupling of thioamides to form 1,3-benzothiazines under metal-free conditions. Org Biomol Chem 2019; 17:3356-3360. [DOI: 10.1039/c9ob00237e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new protocol for the synthesis of 1,3-benzothiazines was developed through direct intramolecular dehydrogenative C–S bond coupling.
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Affiliation(s)
- Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Cheng-Cheng Zhou
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Ming-Zhe Zhu
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Shu-Guang Xie
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Wei-Si Guo
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Ming Li
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
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11
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Battini L, Bollini M. Challenges and approaches in the discovery of human immunodeficiency virus type‐1 non‐nucleoside reverse transcriptase inhibitors. Med Res Rev 2018; 39:1235-1273. [DOI: 10.1002/med.21544] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 10/04/2018] [Accepted: 10/04/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Leandro Battini
- Laboratorio de Química Medicinal, Centro de Investigaciones en Bionanociencias (CIBION), CONICETCiudad de Buenos Aires Argentina
| | - Mariela Bollini
- Laboratorio de Química Medicinal, Centro de Investigaciones en Bionanociencias (CIBION), CONICETCiudad de Buenos Aires Argentina
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12
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Czerwonka A, Lemieszek MK, Karpińska M, Matysiak J, Niewiadomy A, Rzeski W. Evaluation of the effect of 2-(2,4-dihydroxyphenyl)-4 H-benzofuro[3,2- d][1,3]thiazin-4-one on colon cells and its anticancer potential. Med Chem Res 2018; 27:2150-2159. [PMID: 30220832 PMCID: PMC6133158 DOI: 10.1007/s00044-018-2223-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 07/17/2018] [Indexed: 12/30/2022]
Abstract
In this paper, we present the biological effect of the newly synthesized 2-(2,4-dihydroxyphenyl)-4H-benzofuro[3,2-d][1,3]thiazin-4-one (DPBT) on human colon adenocarcinoma cell lines (HT-29 and LS180). Additionally, DPBT cytotoxicity was examined in human colon epithelial cells (CCD 841 CoTr) and human skin fibroblasts (HSF). The studies revealed a significant decrease in the proliferation of cancer cells after exposure to DPBT at concentrations in the range of 10–100 µM. Additionally, DPBT was not toxic to normal CCD 841 CoTr and HSF cells at concentrations that induced inhibition of cancer cell proliferation. The nature of the anti-proliferative action of DPBT in the cell cycle progression in colon cancer cells and the expression of proteins involved in this process were examined by flow cytometry and western blotting, respectively. The investigations demonstrated higher sensitivity of LS180 than HT-29 to the DPBT treatment. The anti-proliferative action of DPBT in LS180 was attributed to cell cycle arrest in the G1 phase via up-regulation of p27KIP1 and down-regulation of cyclin D1 and CDK4 proteins.
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Affiliation(s)
- Arkadiusz Czerwonka
- 1Department of Virology and Immunology, Maria Curie-Skłodowska University, Akademicka 19, Lublin, 20-400 Poland
| | - Marta K Lemieszek
- 2Department of Medical Biology, Institute of Rural Health, Jaczewskiego 2, Lublin, 20-090 Poland
| | - Monika Karpińska
- 3Institute of Industrial Organic Chemistry, Annopol 6, Warsaw, 03-236 Poland
| | - Joanna Matysiak
- 4Department of Chemistry, University of Life Sciences, Akademicka 15, Lublin, 20-950 Poland
| | - Andrzej Niewiadomy
- 3Institute of Industrial Organic Chemistry, Annopol 6, Warsaw, 03-236 Poland.,4Department of Chemistry, University of Life Sciences, Akademicka 15, Lublin, 20-950 Poland
| | - Wojciech Rzeski
- 1Department of Virology and Immunology, Maria Curie-Skłodowska University, Akademicka 19, Lublin, 20-400 Poland.,2Department of Medical Biology, Institute of Rural Health, Jaczewskiego 2, Lublin, 20-090 Poland
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13
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Yennawar HP, Buchwalter MJ, Colburn BK, Silverberg LJ. Crystal structures of two 2,3-diaryl-2,3-di-hydro-4 H-1,3-benzo-thia-zin-4-ones. ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS 2018; 74:363-366. [PMID: 29765724 PMCID: PMC5947804 DOI: 10.1107/s2056989018002049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 02/02/2018] [Indexed: 11/16/2022]
Abstract
Crystal structures of two benzothiazinones belonging to a class of compounds implicated in antimicrobial, antitumour, and HIV-RT inhibitory activity are reported. The syntheses and crystal structures of 2,3-bis[3-(trifluoromethyl)phenyl]-2,3-dihydro-4H-1,3-benzothiazin-4-one (di-m-CF3; C22H13F6NOS) (1) and 2,3-bis(4-methylphenyl)-2,3-dihydro-4H-1,3-benzothiazin-4-one (di-p-CH3; C22H19NOS) (2) are reported. Each structure is racemic: the asymmetric unit of 2 consists of two molecules. In both 1 and 2, the six-membered 1,3-thiazine ring is close to an envelope conformation with the chiral C atom forming the flap. In 1, the 2-aryl group is pseudo-equatorial, while in 2 it is pseudo-axial. In 1, the pendant aryl rings form a V shape with an inter-centroid distance of 3.938 (3) Å and an acute dihedral angle of 48.3 (2)° between them. Both CF3 groups are disordered over two orientations in 0.687 (19):0.313 (19) and 0.667 (16):0.33 (16) ratios. In each of the independent molecules of 2, the aryl rings are almost orthogonal to each other [dihedral angles = 85.50 (12) and 86.07 (11)°]. In both structures, the chiral C atom and the O atoms participate in C—H⋯O-type hydrogen bonding between symmetry-related molecules of 1 or the independent enantiomers in 2, forming chains along the c-axis direction in 1 and the b-axis direction in 2. Additionally, in 1, π–π contacts of both face-to-face and edge-to-face type, as well as π-H⋯O and π-H⋯F interactions are observed. In 2, a racemic mixture of molecules forms layers in the ac plane linked by weak π–π and C—H⋯π interactions.
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Affiliation(s)
- Hemant P Yennawar
- The Pennsylvania State University, Dept. Biochemistry and Molecular Biology, University Park, PA 16802, USA
| | - Michaela J Buchwalter
- Pennsylvania State University, Schuylkill Campus, 200 University Drive, Schuylkill Haven, PA 17972, USA
| | - Baylee K Colburn
- Pennsylvania State University, Schuylkill Campus, 200 University Drive, Schuylkill Haven, PA 17972, USA
| | - Lee J Silverberg
- Pennsylvania State University, Schuylkill Campus, 200 University Drive, Schuylkill Haven, PA 17972, USA
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14
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Yan L, Yin Z, Niu L, Shao J, Chen H, Li X. Synthesis of pentacyclic iminosugars with constrained butterfly-like conformation and their HIV-RT inhibitory activity. Bioorg Med Chem Lett 2018; 28:425-428. [DOI: 10.1016/j.bmcl.2017.12.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 12/11/2017] [Accepted: 12/12/2017] [Indexed: 12/14/2022]
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15
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Shao J, Zhu M, Gao L, Chen H, Li X. Synthesis of tetracyclic azasugars fused benzo[ e ][1,3]thiazin-4-one by the tandem Staudinger/aza-Wittig/cyclization and their HIV-RT inhibitory activity. Carbohydr Res 2018; 456:45-52. [DOI: 10.1016/j.carres.2017.12.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 12/12/2017] [Accepted: 12/12/2017] [Indexed: 11/25/2022]
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16
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Wang Y, Yan F, Jia Q, Dai Y, Wang Q. Quantitative structure-activity relationship of anti-HIV integrase and reverse transcriptase inhibitors using norm indexes. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2017; 28:1025-1044. [PMID: 29157005 DOI: 10.1080/1062936x.2017.1397055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 10/23/2017] [Indexed: 06/07/2023]
Abstract
The development of new and safe anti-human immunodeficiency virus (anti-HIV) drugs has been an urgent task for medical research recently. Herein, based on the norm-index descriptors proposed in this work and previous works, a couple of models were developed for investigating the quantitative structure-activity/toxicity relationship (QSAR/QSTR) of dual-target anti-HIV integrase (IN) and reverse transcriptase (RT) inhibitors. The validation results proved that the developed models were stable and reliable, both in statistical quality and predictive capacity. Moreover, potential dual-target inhibitors with high activity and low toxicity were deduced from the developed models; molecular docking results indicated that these inhibitors could interact with some important residues of HIV IN and RT through H-bonding. Accordingly, the norm indexes descriptors proposed by this work might be helpful for the research and development of dual-target anti-HIV drugs.
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Affiliation(s)
- Y Wang
- a School of Chemical Engineering and Material Science , Tianjin University of Science and Technology , Tianjin , PR China
| | - F Yan
- a School of Chemical Engineering and Material Science , Tianjin University of Science and Technology , Tianjin , PR China
| | - Q Jia
- b School of Marine and Environmental Science , Tianjin University of Science and Technology , Tianjin , PR China
| | - Y Dai
- c School of Bioengineering , Tianjin University of Science and Technology , Tianjin , PR China
| | - Q Wang
- a School of Chemical Engineering and Material Science , Tianjin University of Science and Technology , Tianjin , PR China
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Firoozi N, Bakavoli M, Eshghi H, Ramezanian N. Regioselective synthesis of new 5-methyl-5H-pyrimido[4′,5′:4,5][1,3]thiazino [3,2-a]perimidines. J Sulphur Chem 2017. [DOI: 10.1080/17415993.2017.1318877] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Neda Firoozi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mehdi Bakavoli
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Hossein Eshghi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Navid Ramezanian
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
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