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Giraldi V, Giunchino F, Casacchia ME, Cantelli A, Lucarini M, Giacomini D. N-Sulfenylation of β-Lactams: Radical Reaction of N-Bromo-azetidinones by TEMPO Catalysis. J Org Chem 2023; 88:14728-14735. [PMID: 37769169 PMCID: PMC10594653 DOI: 10.1021/acs.joc.3c01759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Indexed: 09/30/2023]
Abstract
Azetidinones with a sulfenyl group on the β-lactam nitrogen atom show interesting biological activities as antimicrobial agents and enzyme inhibitors. We report in the present study a versatile synthesis of N-sulfenylated azetidinones starting from the corresponding N-bromo derivatives by means of the (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO) radical as the catalyst and disulfides. Preparation of N-halo-azetidinones was studied and optimized. The reactivity of N-bromo-azetidinone 2a as a model compound in the presence of TEMPO radical was investigated by NMR and electron paramagnetic resonance (EPR) spectroscopy studies. Optimization of the reaction conditions allowed the access of N-alkylthio- or N-arylthio-azetidinones from 55 to 92% yields, and the method exhibited a good substrate scope.
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Affiliation(s)
- Valentina Giraldi
- Department
of Chemistry a “Giacomo Ciamician”, University of Bologna, Via Piero Gobetti, 87, Bologna 40129, Italy
| | - Francesco Giunchino
- Department
of Chemistry a “Giacomo Ciamician”, University of Bologna, Via Piero Gobetti, 87, Bologna 40129, Italy
| | - Maria Edith Casacchia
- Department
of Chemistry a “Giacomo Ciamician”, University of Bologna, Via Piero Gobetti, 87, Bologna 40129, Italy
- Department
of Physical and Chemical Sciences, University
of Aquila, Via Vetoio, Coppito, L’Aquila 67100, Italy
| | - Andrea Cantelli
- Department
of Chemistry a “Giacomo Ciamician”, University of Bologna, Via Piero Gobetti, 87, Bologna 40129, Italy
| | - Marco Lucarini
- Department
of Chemistry a “Giacomo Ciamician”, University of Bologna, Via Piero Gobetti, 87, Bologna 40129, Italy
| | - Daria Giacomini
- Department
of Chemistry a “Giacomo Ciamician”, University of Bologna, Via Piero Gobetti, 87, Bologna 40129, Italy
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2
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Martelli G, Cirillo M, Giraldi V, Giacomini D. Chemoenzymatic enantioselective route to get (+) and (-) 4-acetoxy-azetidin-2-one by Lipase-catalysed kinetic resolution and their applications. Bioorg Chem 2021; 120:105580. [DOI: 10.1016/j.bioorg.2021.105580] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 11/04/2021] [Accepted: 12/19/2021] [Indexed: 11/02/2022]
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3
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N-Thio-β-lactams targeting L,D-transpeptidase-2, with activity against drug-resistant strains of Mycobacterium tuberculosis. Cell Chem Biol 2021; 28:1321-1332.e5. [PMID: 33826941 DOI: 10.1016/j.chembiol.2021.03.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 02/04/2021] [Accepted: 03/12/2021] [Indexed: 12/21/2022]
Abstract
Effective treatment of tuberculosis is frequently hindered by the emerging antimicrobial resistance of Mycobacterium tuberculosis. The present study evaluates monocyclic β-lactam compounds targeting the mycobacterial cell wall remodeling. Novel N-thio-β-lactams were designed, synthesized, and characterized on the L,D-transpeptidase-2, a validated target in M. tuberculosis. The candidates were evaluated in biochemical assays identifying five compounds presenting target-specific kinetic constants equal or superior to meropenem, a carbapenem currently considered for tuberculosis therapy. Mass spectrometry in line with the crystal structures of five target-ligand complexes revealed that the N-thio-β-lactams act via an unconventional mode of adduct formation, transferring the thio-residues from the lactam ring to the active-site cysteine of LdtMt2. The resulting stable adducts lead to a long-term inactivation of the target protein. Finally, the candidates were evaluated in vitro against a drug-susceptible and multidrug-resistant clinical isolates of M. tuberculosis, confirming the antimycobacterial effect of these novel compounds.
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Therapeutic Effect and Mechanisms of the Novel Monosulfactam 0073. Antimicrob Agents Chemother 2020; 64:AAC.00529-20. [PMID: 32718961 DOI: 10.1128/aac.00529-20] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 07/08/2020] [Indexed: 02/05/2023] Open
Abstract
This study aimed to evaluate the antimicrobial activity of the novel monosulfactam 0073 against multidrug-resistant Gram-negative bacteria in vitro and in vivo and to characterize the mechanisms underlying 0073 activity. The in vitro activities of 0073, aztreonam, and the combination with avibactam were assessed by MIC and time-kill assays. The safety of 0073 was evaluated using 3-(4,5-dimethylthizol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and acute toxicity assays. Murine thigh infection and pneumonia models were employed to define in vivo efficacy. A penicillin-binding protein (PBP) competition assay and confocal microscopy were conducted. The inhibitory action of 0073 against β-lactamases was evaluated by the half-maximal inhibitory concentration (IC50), and resistance development was evaluated via serial passage. The monosulfactam 0073 showed promising antimicrobial activity against Enterobacteriaceae, Pseudomonas aeruginosa, and Acinetobacter baumannii isolates producing metallo-β-lactamases (MBLs) and serine β-lactamases. In preliminary experiments, compound 0073 exhibited safety both in vitro and in vivo In the murine thigh infection model and the pneumonia models in which infection was induced by P. aeruginosa and Klebsiella pneumoniae, 0073 significantly reduced the bacterial burden. Compound 0073 targeted several PBPs and exerted inhibitory effects against some serine β-lactamases. Finally, 0073 showed a reduced propensity for resistance selection compared with that of aztreonam. The novel monosulfactam 0073 exhibited increased activity against β-lactamase-producing Gram-negative organisms compared with the activity of aztreonam and showed good safety profiles both in vitro and in vivo The underlying mechanisms may be attributed to the affinity of 0073 for several PBPs and its inhibitory activity against some serine β-lactamases. These data indicate that 0073 represents a potential treatment for infections caused by β-lactamase-producing multidrug-resistant bacteria.
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El-Shorbagi AN, Chaudhary S. Monobactams: A Unique Natural Scaffold of Four-Membered Ring Skeleton, Recent Development to Clinically Overcome Infections by Multidrug- Resistant Microbes. LETT DRUG DES DISCOV 2019. [DOI: 10.2174/1570180816666190516113202] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Background:
Monobactam antibiotics have been testified to demonstrate significant antibacterial
activity especially the treatment of infections by superbug microbes. Recently, research has
been focused on the structural modifications, and new generation of this privileged natural scaffold.
Objective:
Efforts have been made to discover the structure-antibacterial relationship of monbactams
in order to avoid the aimless work involving the ongoing generated analogues. This review aims to
summarize the current knowledge and development of monobactams as a broad-spectrum antibacterial
scaffolds. The recent structural modifications that expand the activity, especially in the infections
by resistant-strains, combinational therapies and dosing, as well as the possibility of crosshypersensitivity/
reactivity/tolerability with penicillins and cephalosporins will also be summarized
and inferred. Different approaches will be covered with emphasis on chemical methods and Structure-
Activity Relationship (SAR), in addition to the proposed mechanisms of action. Clinical investigation
of monobactams tackling various aspects will not be missed in this review.
Conclusion:
The conclusion includes the novels approaches, that could be followed to design new
research projects and reduce the pitfalls in the future development of monobactams.
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Affiliation(s)
- Abdel Nasser El-Shorbagi
- Department of Medicinal Chemistry, College of Pharmacy, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Sachin Chaudhary
- Department of Medicinal Chemistry, College of Pharmacy, University of Sharjah, Sharjah 27272, United Arab Emirates
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Cho I, Jia ZJ, Arnold FH. RETRACTED: Site-selective enzymatic C‒H amidation for synthesis of diverse lactams. Science 2019; 364:575-578. [PMID: 31073063 DOI: 10.1126/science.aaw9068] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 03/28/2019] [Indexed: 02/23/2024]
Abstract
A major challenge in carbon‒hydrogen (C‒H) bond functionalization is to have the catalyst control precisely where a reaction takes place. In this study, we report engineered cytochrome P450 enzymes that perform unprecedented enantioselective C‒H amidation reactions and control the site selectivity to divergently construct β-, γ-, and δ-lactams, completely overruling the inherent reactivities of the C‒H bonds. The enzymes, expressed in Escherichia coli cells, accomplish this abiological carbon‒nitrogen bond formation via reactive iron-bound carbonyl nitrenes generated from nature-inspired acyl-protected hydroxamate precursors. This transformation is exceptionally efficient (up to 1,020,000 total turnovers) and selective (up to 25:1 regioselectivity and 97%, please refer to compound 2v enantiomeric excess), and can be performed easily on preparative scale.
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Affiliation(s)
- Inha Cho
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Zhi-Jun Jia
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Frances H Arnold
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA.
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Kildahl-Andersen G, Schnaars C, Prandina A, Radix S, Le Borgne M, Jordheim LP, Gjøen T, Andresen AMS, Lauksund S, Fröhlich C, Samuelsen Ø, Rongved P, Åstrand OAH. Synthesis and biological evaluation of zinc chelating compounds as metallo-β-lactamase inhibitors. MEDCHEMCOMM 2019; 10:528-537. [PMID: 31057732 DOI: 10.1039/c8md00578h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 03/06/2019] [Indexed: 12/24/2022]
Abstract
The syntheses of metallo-β-lactamase inhibitors comprising chelating moieties, with varying zinc affinities, and peptides partly inspired from bacterial peptide sequences, have been undertaken. The zinc chelator strength was varied using the following chelators, arranged in order of ascending binding affinity: dipicolylamine (DPA, tridentate), dipicolyl-1,2,3-triazolylmethylamine (DPTA, tetradentate) dipicolyl ethylenediamine (DPED, tetradentate) and trispicolyl ethylenediamine (TPED, pentadentate). The chosen peptides were mainly based on the known sequence of the C-terminus of the bacterial peptidoglycan precursors. Biological evaluation on clinical bacterial isolates, harbouring either the NDM-1 or VIM-2 metallo-β-lactamase, showed a clear relationship between the zinc chelator strength and restoration of meropenem activity. However, evaluation of toxicity on different cancer cell lines demonstrated a similar trend, and thus inclusion of the bacterial peptides did possess rather high toxicity towards eukaryotic cells.
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Affiliation(s)
- Geir Kildahl-Andersen
- Department of Pharmaceutical Chemistry , School of Pharmacy , University of Oslo , PO Box 1068 Blindern , 0316 Oslo , Norway . ; Tel: +47 22854478
| | - Christian Schnaars
- Department of Pharmaceutical Chemistry , School of Pharmacy , University of Oslo , PO Box 1068 Blindern , 0316 Oslo , Norway . ; Tel: +47 22854478
| | - Anthony Prandina
- Department of Pharmaceutical Chemistry , School of Pharmacy , University of Oslo , PO Box 1068 Blindern , 0316 Oslo , Norway . ; Tel: +47 22854478
| | - Sylvie Radix
- EA 4446 Bioactive Molecules and Medicinal Chemistry , Faculté de Pharmacie - ISPB , Université de Lyon , Université Lyon 1 , SFR Santé Lyon-Est CNRS UMS3453 - INSERM US7 , F-69373 , Lyon cedex 08 , France
| | - Marc Le Borgne
- EA 4446 Bioactive Molecules and Medicinal Chemistry , Faculté de Pharmacie - ISPB , Université de Lyon , Université Lyon 1 , SFR Santé Lyon-Est CNRS UMS3453 - INSERM US7 , F-69373 , Lyon cedex 08 , France
| | - Lars Petter Jordheim
- Université de Lyon , Université Claude Bernard Lyon 1 , INSERM 1052 , CNRS UMR5286 , Centre Léon Bérard , Centre de Recherche en Cancérologie de Lyon , 69008 Lyon , France
| | - Tor Gjøen
- Centre for Integrative Microbial Evolution (CIME) , Faculty of Mathematics and Natural Sciences , University of Oslo , Blindern , Oslo , Norway
| | - Adriana Magalhães Santos Andresen
- Centre for Integrative Microbial Evolution (CIME) , Faculty of Mathematics and Natural Sciences , University of Oslo , Blindern , Oslo , Norway
| | - Silje Lauksund
- Norwegian National Advisory Unit on Detection of Antimicrobial Resistance , Department of Microbiology and Infection Control , University Hospital of North Norway , 9038 Tromsø , Norway.,Department of Pharmacy , UiT - The Arctic University of Norway , 9037 Tromsø , Norway
| | - Christopher Fröhlich
- Norwegian National Advisory Unit on Detection of Antimicrobial Resistance , Department of Microbiology and Infection Control , University Hospital of North Norway , 9038 Tromsø , Norway.,The Norwegian Structural Biology Centre (NorStruct) , Department of Chemistry , UiT The Arctic University of Norway , 9037 Tromsø , Norway
| | - Ørjan Samuelsen
- Norwegian National Advisory Unit on Detection of Antimicrobial Resistance , Department of Microbiology and Infection Control , University Hospital of North Norway , 9038 Tromsø , Norway.,Department of Pharmacy , UiT - The Arctic University of Norway , 9037 Tromsø , Norway
| | - Pål Rongved
- Department of Pharmaceutical Chemistry , School of Pharmacy , University of Oslo , PO Box 1068 Blindern , 0316 Oslo , Norway . ; Tel: +47 22854478
| | - Ove Alexander Høgmoen Åstrand
- Department of Pharmaceutical Chemistry , School of Pharmacy , University of Oslo , PO Box 1068 Blindern , 0316 Oslo , Norway . ; Tel: +47 22854478
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8
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Konaklieva MI. Addressing Antimicrobial Resistance through New Medicinal and Synthetic Chemistry Strategies. SLAS DISCOVERY 2018; 24:419-439. [PMID: 30523713 DOI: 10.1177/2472555218812657] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Over the past century, a multitude of derivatives of structural scaffolds with established antimicrobial potential have been prepared and tested, and a variety of new scaffolds have emerged. The effectiveness of antibiotics, however, is in sharp decline because of the emergence of drug-resistant microorganisms. The prevalence of drug resistance, both in clinical and community settings, is a consequence of bacterial ingenuity in altering pathways and/or cell morphology, making it a persistent threat to human health. The fundamental ability of pathogens to survive in a multitude of habitats can be triggered by recognition of chemical signals that warn organisms of exposure to a potentially harmful environment. Host immune defenses, including reactive oxygen intermediates and antibacterial substances, are among the multitude of chemical signals that can subsequently trigger expression of phenotypes better adapted for survival in that hostile environment. Thus, resistance development appears to be unavoidable, which leads to the conclusion that developing an alternative perspective for treatment options is vital. This review will discuss emerging medicinal chemistry approaches for addressing the global multidrug resistance in the 21st century.
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Decuyper L, Jukič M, Sosič I, Žula A, D'hooghe M, Gobec S. Antibacterial and β-Lactamase Inhibitory Activity of Monocyclic β-Lactams. Med Res Rev 2017; 38:426-503. [DOI: 10.1002/med.21443] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 01/16/2017] [Accepted: 02/08/2017] [Indexed: 01/06/2023]
Affiliation(s)
- Lena Decuyper
- SynBioC Research Group, Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering; Ghent University; Ghent Belgium
| | - Marko Jukič
- Faculty of Pharmacy; University of Ljubljana; Ljubljana Slovenia
| | - Izidor Sosič
- Faculty of Pharmacy; University of Ljubljana; Ljubljana Slovenia
| | - Aleš Žula
- Faculty of Pharmacy; University of Ljubljana; Ljubljana Slovenia
| | - Matthias D'hooghe
- SynBioC Research Group, Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering; Ghent University; Ghent Belgium
| | - Stanislav Gobec
- Faculty of Pharmacy; University of Ljubljana; Ljubljana Slovenia
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Deketelaere S, Van Nguyen T, Stevens CV, D'hooghe M. Synthetic Approaches toward Monocyclic 3-Amino-β-lactams. ChemistryOpen 2017; 6:301-319. [PMID: 28638759 PMCID: PMC5474669 DOI: 10.1002/open.201700051] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Indexed: 01/17/2023] Open
Abstract
Due to the emerging resistance against classical β-lactam-based antibiotics, a growing number of bacterial infections has become harder to treat. This alarming tendency necessitates continued research on novel antibacterial agents. Many classes of β-lactam antibiotics are characterized by the presence of the 3-aminoazetidin-2-one core, which resembles the natural substrate of the target penicillin-binding proteins. In that respect, this Review summarizes the different synthetic pathways toward this key structure for the development of new antibacterial agents. The most extensively applied methods for 3-amino-β-lactam ring formation are discussed, in addition to a few less common strategies. Moreover, approaches to introduce the 3-amino substituent after ring formation are also covered.
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Affiliation(s)
- Sari Deketelaere
- SynBioC Research Group, Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience EngineeringGhent UniversityCoupure Links 6539000GhentBelgium
| | - Tuyen Van Nguyen
- Institute of ChemistryGraduate University of Science and Technology, Vietnam Academy of Science and Technology18-Hoang Quoc Viet, Cau GiayHanoiVietnam
| | - Christian V. Stevens
- SynBioC Research Group, Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience EngineeringGhent UniversityCoupure Links 6539000GhentBelgium
| | - Matthias D'hooghe
- SynBioC Research Group, Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience EngineeringGhent UniversityCoupure Links 6539000GhentBelgium
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Majewski MW, Miller PA, Oliver AG, Miller MJ. Alternate “Drug” Delivery Utilizing β-Lactam Cores: Syntheses and Biological Evaluation of β-Lactams Bearing Isocyanate Precursors. J Org Chem 2016; 82:737-744. [DOI: 10.1021/acs.joc.6b02272] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mark W. Majewski
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Patricia A. Miller
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Allen G. Oliver
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Marvin J. Miller
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
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12
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Du Y, Yu A, Zhang Y, Jia J, Meng X. Cs2CO3-Promoted Michael Addition-[2,3]-Sigmatropic Rearrangement Domino Reaction: Facile Synthesis of a 3-Substituted Indoles Bearing a Homoallyl Sulfide Moiety. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600343] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yanlong Du
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion; School of Chemistry & Chemical Engineering; Tianjin University of Technology; Tianjin 300384 P. R. China
| | - Aimin Yu
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion; School of Chemistry & Chemical Engineering; Tianjin University of Technology; Tianjin 300384 P. R. China
| | - Youquan Zhang
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion; School of Chemistry & Chemical Engineering; Tianjin University of Technology; Tianjin 300384 P. R. China
| | - Jiru Jia
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion; School of Chemistry & Chemical Engineering; Tianjin University of Technology; Tianjin 300384 P. R. China
| | - Xiangtai Meng
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion; School of Chemistry & Chemical Engineering; Tianjin University of Technology; Tianjin 300384 P. R. China
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