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Shu S, Yu M, Yu W, Wang T, Zhang Z. Selective N-functionalization of Arylhydrazines with Primary Alcohols and Acids under PPh 3/DDQ System. J Org Chem 2024; 89:10054-10065. [PMID: 38946235 DOI: 10.1021/acs.joc.4c00915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
We present a PPh3/DDQ-mediated regiospecific selective N-functionalization of arylhydrazines with primary benzylic alcohols and aryl carboxylic acids for the synthesis of N1-benzyl arylhydrazines and N2-acyl arylhydrazines, respectively. This metal- and base-free approach features very short reaction times (about 10 min), broad substrate scope, good functional group tolerance, and mild reaction conditions. Furthermore, N1-benzlated products have also been successfully applied to the concise synthesis of N-substituted indoles and anticancer drug MDM2 inhibitor.
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Affiliation(s)
- Shubing Shu
- Jiangxi Province Key Laboratory of Natural and Biomimetic Drugs Research, College of Chemistry and Materials, Jiangxi Normal University, Nanchang 330022, PR China
| | - Meng Yu
- Jiangxi Province Key Laboratory of Natural and Biomimetic Drugs Research, College of Chemistry and Materials, Jiangxi Normal University, Nanchang 330022, PR China
| | - Wenxin Yu
- Jiangxi Province Key Laboratory of Natural and Biomimetic Drugs Research, College of Chemistry and Materials, Jiangxi Normal University, Nanchang 330022, PR China
| | - Tao Wang
- Jiangxi Province Key Laboratory of Natural and Biomimetic Drugs Research, College of Chemistry and Materials, Jiangxi Normal University, Nanchang 330022, PR China
| | - Zhenming Zhang
- Jiangxi Province Key Laboratory of Natural and Biomimetic Drugs Research, College of Chemistry and Materials, Jiangxi Normal University, Nanchang 330022, PR China
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2
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Li Q, Chen J, Luo Y, Xia Y. Photoredox-Catalyzed Hydroacylation of Azobenzenes with Carboxylic Acids. Org Lett 2024; 26:1517-1521. [PMID: 38346172 DOI: 10.1021/acs.orglett.4c00238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Acyl hydrazides are widely found in bioactive compounds and have important applications as versatile synthetic intermediates. In the current report, a photoredox-catalyzed hydroacylation of azobenzenes was disclosed with carboxylic acids as the acylation reagent, affording a variety of N,N'-disubstituted hydrazides. The process possesses the advantages of mild reaction conditions, broad substrate scope, and high efficiency. Preliminary mechanistic investigation indicated that the addition of an acyl radical to the azo compound should be involved.
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Affiliation(s)
- Qiao Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Jianhui Chen
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yanshu Luo
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yuanzhi Xia
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
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3
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Zhu P, Zheng J, Yan J, Li Z, Li X, Geng H. Design, Synthesis, and Biological Evaluation of N'-Phenylhydrazides as Potential Antifungal Agents. Int J Mol Sci 2023; 24:15120. [PMID: 37894800 PMCID: PMC10606473 DOI: 10.3390/ijms242015120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/19/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Fifty-two kinds of N'-phenylhydrazides were successfully designed and synthesized. Their antifungal activity in vitro against five strains of C. albicans (Candida albicans) was evaluated. All prepared compounds showed varying degrees of antifungal activity against C. albicans and their MIC80 (the concentration of tested compounds when their inhibition rate was at 80%), TAI (total activity index), and TSI (total susceptibility index) were calculated. The inhibitory activities of 27/52 compounds against fluconazole-resistant fungi C. albicans 4395 and 5272 were much better than those of fluconazole. The MIC80 values of 14/52 compounds against fluconazole-resistant fungus C. albicans 5122 were less than 4 μg/mL, so it was the most sensitive fungus (TSIB = 12.0). A11 showed the best inhibitory activity against C. albicans SC5314, 4395, and 5272 (MIC80 = 1.9, 4.0, and 3.7 μg/mL). The antifungal activities of B14 and D5 against four strains of fluconazole-resistant fungi were better than those of fluconazole. The TAI values of A11 (2.71), B14 (2.13), and D5 (2.25) are the highest. Further exploration of antifungal mechanisms revealed that the fungus treated with compound A11 produced free radicals and reactive oxygen species, and their mycelium morphology was damaged. In conclusion, the N'-phenylhydrazide scaffold showed potential in the development of antifungal lead compounds. Among them, A11, B14, and D5 demonstrated particularly promising antifungal activity and held potential as novel antifungal agents.
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Affiliation(s)
- Panpan Zhu
- College of Chemistry & Pharmacy, Northwest A & F University, Yangling 712100, China
- Key Laboratory of Botanical Pesticide R & D in Shaanxi Province, Northwest A & F University, Yangling 712100, China
| | - Jinshuo Zheng
- College of Chemistry & Pharmacy, Northwest A & F University, Yangling 712100, China
| | - Jin Yan
- College of Chemistry & Pharmacy, Northwest A & F University, Yangling 712100, China
| | - Zhaoxia Li
- College of Chemistry & Pharmacy, Northwest A & F University, Yangling 712100, China
| | - Xinyi Li
- College of Chemistry & Pharmacy, Northwest A & F University, Yangling 712100, China
| | - Huiling Geng
- College of Chemistry & Pharmacy, Northwest A & F University, Yangling 712100, China
- Key Laboratory of Botanical Pesticide R & D in Shaanxi Province, Northwest A & F University, Yangling 712100, China
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4
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Liu R, Li Z, Liu S, Zheng J, Zhu P, Cheng B, Yu R, Geng H. Synthesis, Structure-Activity Relationship, and Mechanism of a Series of Diarylhydrazide Compounds as Potential Antifungal Agents. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:6803-6817. [PMID: 37104678 DOI: 10.1021/acs.jafc.2c08027] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
A series of simple diarylhydrazide derivatives (45 examples) were well-designed, prepared, and screened for their antifungal activities both in vitro and in vivo. Bioassay results suggested that all designed compounds had significant activity against Alternaria brassicae (EC50 = 0.30-8.35 μg/mL). Among of them, 2c, as the highest activity compound, could effectively inhibit the growth of plant pathogens Pyricularia oryza, Fusarium solani, Alternaria solani, Alternaria brassicae, and Alternaria alternate and was more potent than carbendazim and thiabendazole. 2c showed almost 100% protection at 200 μg/mL in vivo activity against A. solani in tomato. Moreover, 2c did not affect the germination of cowpea seed and the growth of normal human hepatocytes. The preliminary mechanistic exploration documented that 2c could result in the abnormal morphology and irregular structure of the cell membrane, destroy the function of mitochondria, increase the reactive oxygen species, and inhibit the proliferation of hypha cell. The above results manifested that target compound 2c could be a potential fungicidal candidate against phytopathogenic diseases for its excellent fungicidal activities.
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Affiliation(s)
- Ruiyuan Liu
- College of Chemistry & Pharmacy, Northwest A&F University, 22# Xi'nong Road, Yangling 712100, Shaanxi, China
| | - Zhuangzhuang Li
- College of Chemistry & Pharmacy, Northwest A&F University, 22# Xi'nong Road, Yangling 712100, Shaanxi, China
| | - Sifan Liu
- College of Chemistry & Pharmacy, Northwest A&F University, 22# Xi'nong Road, Yangling 712100, Shaanxi, China
| | - Jinshuo Zheng
- College of Chemistry & Pharmacy, Northwest A&F University, 22# Xi'nong Road, Yangling 712100, Shaanxi, China
| | - PanPan Zhu
- College of Chemistry & Pharmacy, Northwest A&F University, 22# Xi'nong Road, Yangling 712100, Shaanxi, China
| | - Bin Cheng
- College of Chemistry & Pharmacy, Northwest A&F University, 22# Xi'nong Road, Yangling 712100, Shaanxi, China
| | - Ruijin Yu
- College of Chemistry & Pharmacy, Northwest A&F University, 22# Xi'nong Road, Yangling 712100, Shaanxi, China
| | - Huiling Geng
- College of Chemistry & Pharmacy, Northwest A&F University, 22# Xi'nong Road, Yangling 712100, Shaanxi, China
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5
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Regioselective Synthesis of 5-Trifluoromethyl 1,2,4-Triazoles via [3 + 2]-Cycloaddition of Nitrile Imines with CF 3CN. Molecules 2022; 27:molecules27196568. [PMID: 36235104 PMCID: PMC9572902 DOI: 10.3390/molecules27196568] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 09/27/2022] [Accepted: 09/28/2022] [Indexed: 01/29/2023] Open
Abstract
We herein describe a general approach to 5-trifluoromethyl 1,2,4-triazoles via the [3 + 2]-cycloaddition of nitrile imines generated in situ from hydrazonyl chloride with CF3CN, utilizing 2,2,2-trifluoroacetaldehyde O-(aryl)oxime as the precursor of trifluoroacetonitrile. Various functional groups, including alkyl-substituted hydrazonyl chloride, were tolerated during cycloaddition. Furthermore, the gram-scale synthesis and common downstream transformations proved the potential synthetic relevance of this developed methodology.
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6
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Zheng L, Zhuo X, Wang Y, Zou X, Zhong Y, Guo W. Photocatalytic cross-dehydrogenative coupling reaction toward the synthesis of N, N-disubstituted hydrazides and their bromides. Org Chem Front 2022. [DOI: 10.1039/d2qo00253a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An efficient strategy for the divergent synthesis of N,N-disubstituted hydrazides and their bromides is reported through photoredox-catalytic cross-dehydrogenative coupling of N,N-disubstituted hydrazines and aldehydes.
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Affiliation(s)
- Lvyin Zheng
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Xiaoya Zhuo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Yihan Wang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Xiaoying Zou
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Yumei Zhong
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Wei Guo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
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7
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Affiliation(s)
- Adrian Saal
- Laboratory of Organic and Macromolecular Chemistry (IOMC) Friedrich Schiller University Jena Humboldtstraße 10 Jena 07743 Germany
- Center for Energy and Environmental Chemistry Jena (CEEC Jena) Friedrich Schiller University Jena Philosophenweg 7a Jena 07743 Germany
| | - Christian Friebe
- Laboratory of Organic and Macromolecular Chemistry (IOMC) Friedrich Schiller University Jena Humboldtstraße 10 Jena 07743 Germany
- Center for Energy and Environmental Chemistry Jena (CEEC Jena) Friedrich Schiller University Jena Philosophenweg 7a Jena 07743 Germany
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC) Friedrich Schiller University Jena Humboldtstraße 10 Jena 07743 Germany
- Center for Energy and Environmental Chemistry Jena (CEEC Jena) Friedrich Schiller University Jena Philosophenweg 7a Jena 07743 Germany
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8
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Muñoz-Ramírez A, Mascayano-Collado C, Barriga A, Echeverría J, Urzúa A. Inhibition of Soybean 15-Lipoxygenase and Human 5-Lipoxygenase by Extracts of Leaves, Stem Bark, Phenols and Catechols Isolated From Lithraea caustica (Anacardiaceae). Front Pharmacol 2020; 11:594257. [PMID: 33390977 PMCID: PMC7774326 DOI: 10.3389/fphar.2020.594257] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 10/09/2020] [Indexed: 01/20/2023] Open
Abstract
Lithraea caustica (Molina) Hook. and Arn. (Anacardiaceae), common name Litre, is an evergreen endemic plant used in the Mapuche Chilean folk medicine. The stem juice of L. caustica mixed with Rubus ulmifolius (blackberry) is used to treat cough and the infusion of leaves is used in baths to treat joint inflammations. In this study, the activities of 3-n-alk(en)yl-catechols, obtained from the dichloromethane extract of the epicuticular compounds of fresh leaves (DCME), stem bark petroleum ether extract (PEE), fractions of phenols and phenol-acid compounds obtained from the methanolic extract (methanolic extract) of defatted leaves and aqueous infusion (AE) from fresh leaves, were evaluated as in vitro inhibitors of soybean 15-lipoxygenase (15-sLOX) and human 5-lipoxygenase (5-hLOX), one of the inflammation pathways. The 3-n-alk(en)yl-catechols were characterized by gas chromatography-mass spectrometry and 1D and 2D nuclear magnetic resonance analysis as mixtures of 3-[(10E)-pentadec-10′-en-1-yl]-catechol, 3-[(10Z)-pentadec-10′-en-1-yl]-catechol and 3-n-pentadecylcatechol. In addition, two fractions, obtained from MeOHE, were characterized by liquid chromatography electrospray ionization tandem mass spectrometric as complex mixtures of known acids and phenolic compounds. DCME, MeOHE and ethyl acetate extract (AcOEtE) extracts showed inhibition against 15-sLOX, and the AE of fresh leaves, showed the best inhibition against 5-hLOX. The mixture of 3-n-alk(en)yl-catechols showed inhibition of 15-sLOX and 5-hLOX. The compounds 3-[(10Z)-pentadec-10′-en-1-yl]-catechol (IC50 2.09 µM) and 3-n-pentadecylcatechol (IC50 2.74 µM) showed inhibition against 5-hLOX. The inhibition values obtained for the 3-n-alk(en)yl-catechols are in the range of well-known inhibitors of 5-hLOX. Acetylation of the 3-n-alk(en)yl-catechols blocks the inhibitory activity, indicating that the free catechol function is necessary for the enzyme inhibition. In addition, the fractions of phenols and phenol-acid compounds showed inhibitory activity against 15-sLOX and the AE, showed a good inhibition against 5-hLOX. These results would be in agreement with the use of L. caustica, as an anti-inflammatory in Mapuche ethnomedicine.
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Affiliation(s)
- Alejandra Muñoz-Ramírez
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago, Santiago, Chile
| | - Carolina Mascayano-Collado
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago, Santiago, Chile
| | - Andrés Barriga
- Unidad de Espectrometría de Masas-CEPEDEQ Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Javier Echeverría
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago, Santiago, Chile
| | - Alejandro Urzúa
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago, Santiago, Chile
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9
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Canale V, Frisi V, Bantreil X, Lamaty F, Zajdel P. Sustainable Synthesis of a Potent and Selective 5-HT 7 Receptor Antagonist Using a Mechanochemical Approach. J Org Chem 2020; 85:10958-10965. [PMID: 32706254 PMCID: PMC7458427 DOI: 10.1021/acs.joc.0c01044] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
![]()
A mechanochemical
procedure was developed to obtain PZ-1361, a potent and
selective 5-HT7 receptor antagonist, with
antidepressant properties in rodents. The elaborated protocol offered
several advantages over classical batch synthesis, including improvement
of the overall yield (from 34% to 64%), reduction of reaction time
(from 60 to 5.5 h), limitation of the use of toxic solvents, and the
formation of byproducts. This approach represents a rare example of
the synthesis of biologically active compounds exclusively performed
using mechanochemical reactions.
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Affiliation(s)
- Vittorio Canale
- Jagiellonian University Medical College, Faculty of Pharmacy, Department of Medicinal Chemistry, Kraków 30-688, Poland
| | - Valeria Frisi
- Jagiellonian University Medical College, Faculty of Pharmacy, Department of Medicinal Chemistry, Kraków 30-688, Poland
| | - Xavier Bantreil
- IBMM, Univ Montpellier, CNRS, ENSCM, Montpellier 34095, France
| | - Frédéric Lamaty
- IBMM, Univ Montpellier, CNRS, ENSCM, Montpellier 34095, France
| | - Paweł Zajdel
- Jagiellonian University Medical College, Faculty of Pharmacy, Department of Medicinal Chemistry, Kraków 30-688, Poland
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Ye Z, Zhang H, Chen N, Wu Y, Zhang F. PIDA-Mediated Rearrangement for the Synthesis of Enantiopure Triazolopyridinones. Org Lett 2020; 22:6464-6467. [PMID: 32806197 DOI: 10.1021/acs.orglett.0c02278] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A tandem oxidative cyclization/1,2-carbon migration of hydrazides for the synthesis of otherwise inaccessible hindered or enantiopure triazolopyridinones has been developed. This protocol exhibits broad substrate scope and can be easily scaled up by continuous flow synthesis under mild conditions. Most importantly, this method demonstrates a rearrangement with retention of configuration and can be readily applied for the late-stage modification of carboxylic-acid-containing pharmaceuticals, amino acids, and natural products to access enantiopure triazolopyridinones.
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Affiliation(s)
- Zenghui Ye
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P.R. China.,Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Hong Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Na Chen
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Yanqi Wu
- Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Fengzhi Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P.R. China.,Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P.R. China
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Beillard A, Quintin F, Gatignol J, Retailleau P, Renaud JL, Gaillard S, Métro TX, Lamaty F, Bantreil X. Solving the challenging synthesis of highly cytotoxic silver complexes bearing sterically hindered NHC ligands with mechanochemistry. Dalton Trans 2020; 49:12592-12598. [DOI: 10.1039/d0dt00410c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Challenging silver(i) NHC complexes displaying cytotoxicity 256 times higher than cisplatin were synthesized by ball-milling.
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Affiliation(s)
| | | | | | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles
- CNRS UPR 2301
- Université Paris-Saclay
- 91198 Gif-sur-Yvette
- France
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