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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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2
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Ranzenigo A, Mercurio C, Karrenbrock M, Cordero FM, Cardini G, Pagliai M, Brandi A. Regioselective Deuteration of a 3,4-Dialkoxypyrroline N
-Oxide and Synthesis of 8a- d
-Indolizidines. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Anna Ranzenigo
- Dipartimento di Chimica “Ugo Schiff”; Università degli Studi di Firenze; via della Lastruccia 3-13 50019 Sesto Fiorentino (FI) Italy
| | - Chiara Mercurio
- Dipartimento di Chimica “Ugo Schiff”; Università degli Studi di Firenze; via della Lastruccia 3-13 50019 Sesto Fiorentino (FI) Italy
| | - Maurice Karrenbrock
- Dipartimento di Chimica “Ugo Schiff”; Università degli Studi di Firenze; via della Lastruccia 3-13 50019 Sesto Fiorentino (FI) Italy
| | - Franca M. Cordero
- Dipartimento di Chimica “Ugo Schiff”; Università degli Studi di Firenze; via della Lastruccia 3-13 50019 Sesto Fiorentino (FI) Italy
| | - Gianni Cardini
- Dipartimento di Chimica “Ugo Schiff”; Università degli Studi di Firenze; via della Lastruccia 3-13 50019 Sesto Fiorentino (FI) Italy
| | - Marco Pagliai
- Dipartimento di Chimica “Ugo Schiff”; Università degli Studi di Firenze; via della Lastruccia 3-13 50019 Sesto Fiorentino (FI) Italy
| | - Alberto Brandi
- Dipartimento di Chimica “Ugo Schiff”; Università degli Studi di Firenze; via della Lastruccia 3-13 50019 Sesto Fiorentino (FI) Italy
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4
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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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5
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Giomi D, Ceccarelli J, Brandi A. Synthesis of New Indolizidine Derivatives from 1-(2-Quinolyl)-2-propen-1-ol. ACS OMEGA 2018; 3:3183-3189. [PMID: 31458576 PMCID: PMC6641500 DOI: 10.1021/acsomega.8b00167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 03/05/2018] [Indexed: 06/10/2023]
Abstract
The four-step procedure involving bromination, reduction, and nucleophilic substitution via elimination/addition previously applied to 1-(2-pyridyl)-2-propen-1-ol for the synthesis of indolizidine systems has now been extended to 1-(2-quinolyl)-2-propen-1-ol allowing a general access to benzo-fused derivatives. For instance, (±)-benzo[e]lentiginosine has been easily synthesized in an 18% overall yield.
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7
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Cordero FM, Vurchio C, Faggi C, Brandi A. Configuration-guided reactions: the case of highly decorated spiro[cyclopropane-1,2′(3′H)-pyrrolo[1,2-b]isoxazole] derivatives en route to polyhydroxyindolizidines. Org Chem Front 2016. [DOI: 10.1039/c6qo00410e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The formation of structurally differentiated indolizidinones is guided by a diverse behaviour of spirocyclopropaneisoxazolidine precursors under fluorination reactions.
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Affiliation(s)
- F. M. Cordero
- Department of Chemistry ‘Ugo Schiff’
- University of Firenze
- 50019 Sesto Fiorentino
- Italy
| | - C. Vurchio
- Department of Chemistry ‘Ugo Schiff’
- University of Firenze
- 50019 Sesto Fiorentino
- Italy
| | - C. Faggi
- Department of Chemistry ‘Ugo Schiff’
- University of Firenze
- 50019 Sesto Fiorentino
- Italy
| | - A. Brandi
- Department of Chemistry ‘Ugo Schiff’
- University of Firenze
- 50019 Sesto Fiorentino
- Italy
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8
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Abstract
A copper/β-diketone-catalysedN-arylation of carbazoles with aryl iodides is developed with broad substrate applicability and moderate to good yields.
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Affiliation(s)
- Fei Chen
- School of Chemistry and Chemical Engineering
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
- Shihezi University
- Shihezi
- China
| | - Ning Liu
- School of Chemistry and Chemical Engineering
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
- Shihezi University
- Shihezi
- China
| | - Enhui Ji
- School of Chemistry and Chemical Engineering
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
- Shihezi University
- Shihezi
- China
| | - Bin Dai
- School of Chemistry and Chemical Engineering
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
- Shihezi University
- Shihezi
- China
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10
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Wu X, Zhang FY, Zhu J, Song C, Xiong DC, Zhou Y, Cui Y, Ye XS. N-Arylated-Lactam-Type Iminosugars as New Immunosuppressive Agents: Discovery, Optimization, and Biological Evaluation. Chem Asian J 2014; 9:2260-71. [DOI: 10.1002/asia.201400023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Indexed: 11/11/2022]
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