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Sun H, Huang SY, Jeyakkumar P, Cai GX, Fang B, Zhou CH. Natural Berberine-derived Azolyl Ethanols as New Structural Antibacterial Agents against Drug-Resistant Escherichia coli. J Med Chem 2021; 65:436-459. [PMID: 34964345 DOI: 10.1021/acs.jmedchem.1c01592] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Natural berberine-derived azolyl ethanols as new structural antibacterial agents were designed and synthesized for fighting with dreadful bacterial resistance. Partial target molecules exhibited potent activity against the tested strains, particularly, nitroimidazole derivative 4d and benzothiazole-2-thoil compound 18b, with low cytotoxicity both exerted strong antibacterial activities against multidrug-resistant Escherichia coli at low concentrations as 0.007 and 0.006 mM, respectively. Meanwhile, the active compounds 4d and 18b possessed the ability to rapidly kill bacteria and observably eradicate the E. coli biofilm by reducing exopolysaccharide content to prevent bacterial adhesion, which was conducive to alleviating the development of E. coli resistance. Preliminary mechanistic explorations suggested that the excellent antibacterial potential of molecules 4d and 18b might be attributed to their ability to disintegrate membrane, accelerate ROS accumulation, reduce bacterial metabolism, and intercalate into DNA groove. These results provided powerful information for the further exploitation of natural berberine derivatives against bacterial pathogens.
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Affiliation(s)
- Hang Sun
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Shi-Yu Huang
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ponmani Jeyakkumar
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Gui-Xin Cai
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Bo Fang
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine, Chongqing University of Arts and Sciences, Chongqing, 402160, China
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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2
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Chen L, Zhu L, Chen J, Chen W, Qian X, Yang Q. Crystal structure-guided design of berberine-based novel chitinase inhibitors. J Enzyme Inhib Med Chem 2021; 35:1937-1943. [PMID: 33167737 PMCID: PMC7655067 DOI: 10.1080/14756366.2020.1837123] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Glycoside hydrolase family 18 (GH18) chitinases play an important role in various organisms ranging from bacteria to mammals. Chitinase inhibitors have potential applications as pesticides, fungicides, and anti-asthmatics. Berberine, a plant-derived isoquinoline alkaloid, was previously reported to inhibit against various GH18 chitinases with only moderate Ki values ranging between 20 and 70 μM. In this report, we present for the first time the berberine-complexed crystal structure of SmChiB, a model GH18 chitinase from the bacterium Serratia marcescens. Based on the berberine-binding mode, a hydrophobic cavity-based optimisation strategy was developed to increase their inhibitory activity. A series of berberine derivatives were designed and synthesised, and their inhibitory activities against GH18 chitinases were evaluated. The compound 4c showed 80-fold-elevated inhibitory activity against SmChiB and the human chitinase hAMCase with Ki values at the sub-micromolar level. The mechanism of improved inhibitory activities was proposed. This work provides a new strategy for developing novel chitinase inhibitors.
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Affiliation(s)
- Lei Chen
- School of Bioengineering, Dalian University of Technology, Dalian, China.,State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ling Zhu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Jinli Chen
- School of Bioengineering, Dalian University of Technology, Dalian, China
| | - Wei Chen
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xuhong Qian
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Qing Yang
- School of Bioengineering, Dalian University of Technology, Dalian, China.,State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.,Guangdong Laboratory for Lingnan Modern Agriculture, (Shenzhen Branch), Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
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3
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Dechloromethylation of the berberine to berberrubine — tricks to obtain pure product. ACTA CHIMICA SLOVACA 2020. [DOI: 10.2478/acs-2020-0014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Abstract
Berberine (1), as a compound with interesting biological activities, can be modified at various positions to obtain more potent substances. Modifications at position 9 are based on demethylation with simultaneous dechloration resulting in berberrubine. The most frequent process is thermal dechloromethylation and this work describes this method with detailed tricks to obtain almost pure product in high yield.
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Teng Q, Zhu X, Guo Q, Jiang W, Liu J, Meng Q. Synthesis of 9-O-arylated berberines via copper-catalyzed C Ar-O coupling reactions. Beilstein J Org Chem 2019; 15:1575-1580. [PMID: 31435439 PMCID: PMC6664384 DOI: 10.3762/bjoc.15.161] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 07/03/2019] [Indexed: 01/17/2023] Open
Abstract
Berberine is a widely used antimicrobial agent in clinic. However, a high dosage is often required due to its low lipophilicity and bioavailability. The current study explores the structural modifications of berberines with potentially lipophilic aryl groups to address this problem. A series of 15 9-O-aryl-substituted berberines (3a–o) and one 9-O-phenylene-bridged berberine dimer (5) was synthesized by copper-catalyzed cross-coupling of tetrahydroberberrubine and aryl iodides, followed by oxidation with I2.
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Affiliation(s)
- Qiaoqiao Teng
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Xinhui Zhu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Qianqian Guo
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Weihua Jiang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jiang Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Qi Meng
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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Milata V, Svedova A, Barbierikova Z, Holubkova E, Cipakova I, Cholujova D, Jakubikova J, Panik M, Jantova S, Brezova V, Cipak L. Synthesis and Anticancer Activity of Novel 9- O-Substituted Berberine Derivatives. Int J Mol Sci 2019; 20:ijms20092169. [PMID: 31052469 PMCID: PMC6539820 DOI: 10.3390/ijms20092169] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 04/25/2019] [Accepted: 04/30/2019] [Indexed: 01/05/2023] Open
Abstract
Berberine is a bioactive isoquinoline alkaloid derived from many plants. Although berberine has been shown to inhibit growth and induce apoptosis of several tumor cell lines, its poor absorption and moderate activity hamper its full therapeutic potential. Here, we describe the synthesis of a series of 9-O-substituted berberine derivatives with improved antiproliferative and apoptosis-inducing activities. An analysis of novel berberine derivatives by EPR spectroscopy confirmed their similar photosensitivity and analogous behavior upon UVA irradiation as berberine, supporting their potential to generate ROS. Improved antitumor activity of novel berberine derivatives was revealed by MTT assay, by flow cytometry and by detection of apoptotic DNA fragmentation and caspase-3 activation, respectively. We showed that novel berberine derivatives are potent inhibitors of growth of HeLa and HL-60 tumor cell lines with IC50 values ranging from 0.7 to 16.7 µM for HL-60 cells and 36 to >200 µM for HeLa cells after 48 h treatment. Further cell cycle analysis showed that the observed inhibition of growth of HL-60 cells treated with berberine derivatives was due to arresting these cells in the G2/M and S phases. Most strikingly, we found that berberine derivative 3 (9-(3-bromopropoxy)-10-methoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquino[3,2-a] isoquinolin-7-ylium bromide) possesses 30-fold superior antiproliferative activity with an IC50 value of 0.7 µM and 6-fold higher apoptosis-inducing activity in HL-60 leukemia cells compared to berberine. Therefore, further studies are merited of the antitumor activity in leukemia cells of this berberine derivative.
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Affiliation(s)
- Viktor Milata
- Institute of Organic Chemistry, Catalysis and Petrochemistry, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinskeho 9, 812 37 Bratislava, Slovakia.
| | - Alexandra Svedova
- Institute of Biochemistry and Microbiology, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinskeho 9, 812 37 Bratislava, Slovakia.
| | - Zuzana Barbierikova
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinskeho 9, 812 37 Bratislava, Slovakia.
| | - Eva Holubkova
- Institute of Organic Chemistry, Catalysis and Petrochemistry, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinskeho 9, 812 37 Bratislava, Slovakia.
| | - Ingrid Cipakova
- Cancer Research Institute, Biomedical Research Center, University Science Park for Biomedicine, Slovak Academy of Sciences, Dubravska cesta 9, 845 05 Bratislava, Slovakia.
| | - Dana Cholujova
- Cancer Research Institute, Biomedical Research Center, University Science Park for Biomedicine, Slovak Academy of Sciences, Dubravska cesta 9, 845 05 Bratislava, Slovakia.
| | - Jana Jakubikova
- Cancer Research Institute, Biomedical Research Center, University Science Park for Biomedicine, Slovak Academy of Sciences, Dubravska cesta 9, 845 05 Bratislava, Slovakia.
| | - Miroslav Panik
- Institute of Management, Slovak University of Technology, 812 33 Bratislava, Slovakia.
| | - Sona Jantova
- Institute of Biochemistry and Microbiology, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinskeho 9, 812 37 Bratislava, Slovakia.
| | - Vlasta Brezova
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinskeho 9, 812 37 Bratislava, Slovakia.
| | - Lubos Cipak
- Cancer Research Institute, Biomedical Research Center, University Science Park for Biomedicine, Slovak Academy of Sciences, Dubravska cesta 9, 845 05 Bratislava, Slovakia.
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6
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Sun H, Ansari MF, Battini N, Bheemanaboina RRY, Zhou CH. Novel potential artificial MRSA DNA intercalators: synthesis and biological evaluation of berberine-derived thiazolidinediones. Org Chem Front 2019. [DOI: 10.1039/c8qo01180j] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Novel berberine-derived thiazolidinediones as potential artificial DNA intercalators were synthesized, and the preliminary mechanism suggested that active compound 6b could intercalate into MRSA DNA.
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Affiliation(s)
- Hang Sun
- Institute of Bioorganic & Medicinal Chemistry
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Mohammad Fawad Ansari
- Institute of Bioorganic & Medicinal Chemistry
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Narsaiah Battini
- Institute of Bioorganic & Medicinal Chemistry
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Rammohan R. Yadav Bheemanaboina
- Institute of Bioorganic & Medicinal Chemistry
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
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Larrañaga O, Miranda JI, Cossío FP, Cózar AD. Alkaloids Reactivity: DFT Analysis of Selective Demethylation Reactions. J Org Chem 2018; 83:15101-15109. [PMID: 30457861 DOI: 10.1021/acs.joc.8b02364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
All possible demethylation reactions of a diverse family of quaternary alkaloids by means of DFT calculations are here described. We aim to develop a rational model that allows the explanation of the high selectivity observed experimentally and predicts the occurrence of new alkaloid derivatives. To this end, we have performed a detailed analysis of the initial reagents and products. In addition, as a proof of concept, an experimentally unknown demethylation reaction of coralyne has been carried out, thus verifying the reliability of the theoretical model presented here.
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Affiliation(s)
- Olatz Larrañaga
- Departamento de Química Orgánica I/Kimika Organikoa I Saila, Facultad de Química/Kimika Fakultatea , Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU) and Donostia International Physics Center (DIPC) and Centro de Innovación en Química Avanzada (ORFEO-CINQA) , P. K. 1072 , San Sebastián, Donostia 20018 , Spain
| | - José I Miranda
- SGIker NMR Facility , Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU) , P. K. 1072 , San Sebastián, Donostia 20018 , Spain
| | - Fernando P Cossío
- Departamento de Química Orgánica I/Kimika Organikoa I Saila, Facultad de Química/Kimika Fakultatea , Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU) and Donostia International Physics Center (DIPC) and Centro de Innovación en Química Avanzada (ORFEO-CINQA) , P. K. 1072 , San Sebastián, Donostia 20018 , Spain
| | - Abel de Cózar
- Departamento de Química Orgánica I/Kimika Organikoa I Saila, Facultad de Química/Kimika Fakultatea , Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU) and Donostia International Physics Center (DIPC) and Centro de Innovación en Química Avanzada (ORFEO-CINQA) , P. K. 1072 , San Sebastián, Donostia 20018 , Spain.,IKERBASQUE, Basque Foundation for Science , Bilbao 48011 , Spain
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8
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Prieto P, de la Hoz A, Díaz-Ortiz A, Rodríguez AM. Understanding MAOS through computational chemistry. Chem Soc Rev 2017; 46:431-451. [DOI: 10.1039/c6cs00393a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Computational chemistry may explain and rationalize the impact of microwave irradiation in organic synthesis.
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Affiliation(s)
- P. Prieto
- Departamento de Química Orgánica
- Facultad de Ciencias y Tecnologías Químicas
- Universidad de Castilla-La Mancha
- 13071 Ciudad Real
- Spain
| | - A. de la Hoz
- Departamento de Química Orgánica
- Facultad de Ciencias y Tecnologías Químicas
- Universidad de Castilla-La Mancha
- 13071 Ciudad Real
- Spain
| | - A. Díaz-Ortiz
- Departamento de Química Orgánica
- Facultad de Ciencias y Tecnologías Químicas
- Universidad de Castilla-La Mancha
- 13071 Ciudad Real
- Spain
| | - A. M. Rodríguez
- Department of Chemical Sciences
- University of Naples Federico II
- Naples 80126
- Italy
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Li Y, Yuan X, Rong X, Gao Y, Qiu Z, Zhang Z, Zhou D, Li W. Design, synthesis and biological evaluation of a hybrid compound of berberine and magnolol for improvement of glucose and lipid metabolism. RSC Adv 2016. [DOI: 10.1039/c6ra15100k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The discovery and structural optimization of lead compounds is the main task in the research and development of new drugs.
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Affiliation(s)
- Yan Li
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine
- Guangzhou 510006
- People's Republic of China
| | - Xiao Yuan
- Guangzhou Pi & Pi Technology Inc
- Guangzhou 510006
- People's Republic of China
| | - Xianglu Rong
- Center Laboratory
- Guangdong Pharmaceutical University
- Guangzhou 510006
- People's Republic of China
| | - Ying Gao
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine
- Guangzhou 510006
- People's Republic of China
| | - Zhibin Qiu
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine
- Guangzhou 510006
- People's Republic of China
| | - Zhipeng Zhang
- Center Laboratory
- Guangdong Pharmaceutical University
- Guangzhou 510006
- People's Republic of China
| | - Dongbin Zhou
- Guangzhou Pi & Pi Technology Inc
- Guangzhou 510006
- People's Republic of China
| | - Weimin Li
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine
- Guangzhou 510006
- People's Republic of China
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