1
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Yang K, Mao Y, Zhang Z, Xu J, Wang H, He Y, Yu P, Song Q. Construction of C-B axial chirality via dynamic kinetic asymmetric cross-coupling mediated by tetracoordinate boron. Nat Commun 2023; 14:4438. [PMID: 37488114 PMCID: PMC10366327 DOI: 10.1038/s41467-023-40164-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 07/14/2023] [Indexed: 07/26/2023] Open
Abstract
Catalytic dynamic kinetic asymmetric transformation (DyKAT) provides a powerful tool to access chiral stereoisomers from racemic substrates. Such transformation has been widely employed on the construction of central chirality, however, the application in axial chirality remains underexplored because its equilibrium of substrate enantiomers is limited to five-membered metalacyclic intermediate. Here we report a tetracoordinate boron-directed dynamic kinetic asymmetric cross-coupling of racemic, configurationally stable 3-bromo-2,1-azaborines with boronic acid derivatives. A series of challenging C-B axially chiral compounds were prepared with generally good to excellent enantioselectivities. Moreover, this transformation can also be extended to prepare atropisomers bearing adjacent C-B and C-C diaxes with excellent diastereo- and enantio-control. The key to the success relies on the rational design of a reversible tetracoordinate boron intermediate, which is supported by theoretical calculations that dramatically reduces the rotational barrier of the original C-B axis and achieves the goal of DyKAT.
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Affiliation(s)
- Kai Yang
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Yanfei Mao
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Zhihan Zhang
- Department of Chemistry and Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Jie Xu
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Hao Wang
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Yong He
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Peiyuan Yu
- Department of Chemistry and Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China.
| | - Qiuling Song
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian, 350108, China.
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, China.
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2
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Ciogli A, Fochetti A, Sorato A, Fabrizi G, Matera N, Mazzanti A, Mancinelli M. Diaryl-Pyrano-Chromenes Atropisomers: Stereodynamics and Conformational Studies. Molecules 2023; 28:4915. [PMID: 37446580 DOI: 10.3390/molecules28134915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 07/15/2023] Open
Abstract
The dynamic scenario of di-aryls-pyrano-chromenes was investigated using DFT calculations. The symmetry of the chromene scaffold and the presence of two ortho-substituted aryls substituents can generate two syn/anti diastereoisomers and conformational enantiomers with different rotational barriers. The relative conformations and configurations were derived using NOESY-1D experiments. Depending on the energies related to the conformational exchange, the experimental energy barriers were determined through Dynamic NMR, Dynamic HPLC or kinetic studies. The atropisomeric pairs were resolved in the latter scenario, and their absolute configuration was assigned using the ECD/TD-DFT method.
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Affiliation(s)
- Alessia Ciogli
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Roma, Italy
| | - Andrea Fochetti
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Roma, Italy
| | - Andrea Sorato
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Roma, Italy
| | - Giancarlo Fabrizi
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Roma, Italy
| | - Nunzio Matera
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale del Risorgimento 4, 40136 Bologna, Italy
| | - Andrea Mazzanti
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale del Risorgimento 4, 40136 Bologna, Italy
| | - Michele Mancinelli
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale del Risorgimento 4, 40136 Bologna, Italy
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3
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Zhang D, Li Y, Li X, Han X, Wang Z, Zhang W, Dou B, Lu Z, Li P, Li G. Neopetrosins A-D and Haliclorensin D, Indole- C-Mannopyranosides and a Diamine Alkaloid Isolated from the South China Sea Marine Sponge Neopetrosia chaliniformis. JOURNAL OF NATURAL PRODUCTS 2022; 85:1626-1633. [PMID: 35650516 DOI: 10.1021/acs.jnatprod.2c00292] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Four new indole-C-mannopyranoside alkaloids, neopetrosins A-D (1-4), together with one new diamine alkaloid, haliclorensin D (6), were isolated from the marine sponge Neopetrosia chaliniformis collected off Xisha Island in the South China Sea. Their structures and absolute configurations were determined by spectroscopic analysis, single-crystal X-ray diffraction, calculated electronic circular dichroism (ECD), and DP4+ probability analyses. Compounds 1, 2, and 4 exhibited in vivo hepatoprotective activity in a zebrafish model at a concentration of 20 μM.
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Affiliation(s)
- Di Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, P. R. China
| | - Yueying Li
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Xiaolei Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, P. R. China
| | - Xiao Han
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, P. R. China
| | - Zhe Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, P. R. China
| | - Wenze Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, P. R. China
| | - Beibei Dou
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, P. R. China
| | - Zhongyu Lu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, P. R. China
| | - Pinglin Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, P. R. China
| | - Guoqiang Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, P. R. China
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4
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Wang Z, Han X, Liu G, Zhang D, Hou H, Xiao L, de Voogd NJ, Tang X, Li P, Li G. Kalihioxepanes
A‐G
: Seven Kalihinene Diterpenoids from Marine Sponge
Acanthella cavernosa
Collected off the South China Sea. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zhe Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy Ocean University of China Qingdao 266003 People's Republic of China
| | - Xiao Han
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy Ocean University of China Qingdao 266003 People's Republic of China
| | - Guoping Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy Ocean University of China Qingdao 266003 People's Republic of China
| | - Di Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy Ocean University of China Qingdao 266003 People's Republic of China
| | - Huiyue Hou
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy Ocean University of China Qingdao 266003 People's Republic of China
| | - Li Xiao
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy Ocean University of China Qingdao 266003 People's Republic of China
| | | | - Xuli Tang
- College of Chemistry and Chemical Engineering Ocean University of China Qingdao 266100 People's Republic of China
| | - Pinglin Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy Ocean University of China Qingdao 266003 People's Republic of China
- Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology Qingdao 266235 People's Republic of China
| | - Guoqiang Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy Ocean University of China Qingdao 266003 People's Republic of China
- Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology Qingdao 266235 People's Republic of China
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5
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Vargas DF, Kaufman TS, Larghi EL. Total Synthesis of Aqabamycin G, a Nitrophenyl Indolylmaleimide Marine Alkaloid from Vibrio sp. WMBA. J Org Chem 2022; 87:13494-13500. [PMID: 35324169 DOI: 10.1021/acs.joc.2c00063] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The first total synthesis of the marine alkaloid aqabamycin G is disclosed. The synthetic sequence involved the stepwise addition to maleimide of an indole motif and a substituted diazo-benzenoid unit derived from acetaminophen. An alternative strategy using a protected phenol is also reported.
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Affiliation(s)
- Didier F Vargas
- Instituto de Química Rosario (IQUIR, CONICET-UNR) and Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, S2002LRK Rosario, Argentina
| | - Teodoro S Kaufman
- Instituto de Química Rosario (IQUIR, CONICET-UNR) and Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, S2002LRK Rosario, Argentina
| | - Enrique L Larghi
- Instituto de Química Rosario (IQUIR, CONICET-UNR) and Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, S2002LRK Rosario, Argentina
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6
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Luo XC, Wang Q, Tang XL, Li PL, Li GQ. One cytotoxic steroid and other two new metabolites from the South China Sea sponge Luffariella variabilis. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2020.152762] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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7
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Khan I, Ibrar A, Zaib S. Alkynoates as Versatile and Powerful Chemical Tools for the Rapid Assembly of Diverse Heterocycles under Transition-Metal Catalysis: Recent Developments and Challenges. Top Curr Chem (Cham) 2021; 379:3. [PMID: 33398642 DOI: 10.1007/s41061-020-00316-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 11/16/2020] [Indexed: 12/15/2022]
Abstract
Heterocycles, heteroaromatics and spirocyclic entities are ubiquitous components of a wide plethora of synthetic drugs, biologically active natural products, marketed pharmaceuticals and agrochemical targets. Recognizing their high proportion in drugs and rich pharmacological potential, these invaluable structural motifs have garnered significant interest, thus enabling the development of efficient catalytic methodologies providing access to architecturally complex and diverse molecules with high atom-economy and low cost. These chemical processes not only allow the formation of diverse heterocycles but also utilize a range of flexible and easily accessible building units in a single operation to discover diversity-oriented synthetic approaches. Alkynoates are significantly important, diverse and powerful building blocks in organic chemistry due to their unique and inherent properties such as the electronic bias on carbon-carbon triple bonds posed by electron-withdrawing groups or the metallic coordination site provided by carbonyl groups. The present review highlights the comprehensive picture of the utility of alkynoates (2007-2019) for the synthesis of various heterocycles (> 50 types) using transition-metal catalysts (Ru, Rh, Pd, Ir, Ag, Au, Pt, Cu, Mn, Fe) in various forms. The valuable function of versatile alkynoates (bearing multifunctional groups) as simple and useful starting materials is explored, thus cyclizing with an array of coupling partners to deliver a broad range of oxygen-, nitrogen-, sulfur-containing heterocycles alongside fused-, and spiro-heterocyclic compounds. In addition, these examples will also focus the scope and reaction limitations, as well as mechanistic investigations into the synthesis of these heterocycles. The biological significance will also be discussed, citing relevant examples of drug molecules highlighting each class of heterocycles. This review summarizes the recent developments in the synthetic methods for the synthesis of various heterocycles using alkynoates as readily available starting materials under transition-metal catalysis.
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Affiliation(s)
- Imtiaz Khan
- Department of Chemistry, School of Natural Sciences, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
- Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK.
| | - Aliya Ibrar
- Department of Chemistry, Faculty of Natural Sciences, The University of Haripur, Haripur, KPK-22620, Pakistan
| | - Sumera Zaib
- Department of Biochemistry, Faculty of Life Sciences, University of Central Punjab, Lahore, 54590, Pakistan
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8
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Abbasnia M, Sheykhan M, Ghaffari T, Safari E. Approach to the Synthesis of Unsymmetrical/Symmetrical Maleimides via Desulfitative Arylation at Different Temperatures. J Org Chem 2020; 85:11688-11698. [DOI: 10.1021/acs.joc.0c01323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Masoumeh Abbasnia
- Chemistry Department, University of Guilan, P.O. Box 41335-1914, 4193833697 Rasht, Iran
| | - Mehdi Sheykhan
- Chemistry Department, University of Guilan, P.O. Box 41335-1914, 4193833697 Rasht, Iran
| | - Tahereh Ghaffari
- Chemistry Department, University of Guilan, P.O. Box 41335-1914, 4193833697 Rasht, Iran
| | - Elham Safari
- Chemistry Department, University of Guilan, P.O. Box 41335-1914, 4193833697 Rasht, Iran
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9
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Khan T, Rajesh P, Praveen D, Jose KVJ, Yaragorla S. Brønsted Acid Promoted Thermal-Ring-Rearrangement of Fluorenopyrans to 2-(1 H
-Inden-3-yl)-9 H
-fluoren-3-ols Bearing Two All-Carbon-Quaternary Centres. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tabassum Khan
- School of Chemistry; University of Hyderabad; P.O. Central University, Gachibowli 500046 Hyderabad Telangana State India
| | - P. Rajesh
- School of Chemistry; University of Hyderabad; P.O. Central University, Gachibowli 500046 Hyderabad Telangana State India
| | - Dudam Praveen
- School of Chemistry; University of Hyderabad; P.O. Central University, Gachibowli 500046 Hyderabad Telangana State India
| | - K. V. Jovan Jose
- School of Chemistry; University of Hyderabad; P.O. Central University, Gachibowli 500046 Hyderabad Telangana State India
| | - Srinivasarao Yaragorla
- School of Chemistry; University of Hyderabad; P.O. Central University, Gachibowli 500046 Hyderabad Telangana State India
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10
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Mancinelli M, Bencivenni G, Pecorari D, Mazzanti A. Stereochemistry and Recent Applications of Axially Chiral Organic Molecules. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901918] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Michele Mancinelli
- Department of Industrial Chemistry “Toso Montanari” University of Bologna Viale Risorgimento 4 40136 Bologna Italy
| | - Giorgio Bencivenni
- Department of Industrial Chemistry “Toso Montanari” University of Bologna Viale Risorgimento 4 40136 Bologna Italy
| | - Daniel Pecorari
- Department of Industrial Chemistry “Toso Montanari” University of Bologna Viale Risorgimento 4 40136 Bologna Italy
| | - Andrea Mazzanti
- Department of Industrial Chemistry “Toso Montanari” University of Bologna Viale Risorgimento 4 40136 Bologna Italy
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11
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Price J, Albright E, Decken A, Eisler S. Thioarylmaleimides: accessible, tunable, and strongly emissive building blocks. Org Biomol Chem 2019; 17:9562-9566. [PMID: 31497835 DOI: 10.1039/c9ob01741k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of thioarylmaleimides was synthesized to investigate how variation of the thioaryl group can be used to control absorption and emission properties in solution and in the solid-state. Fine-tuning of the photochemical properties was found to be possible using this strategy, and a rainbow of colours and emission wavelengths are accessible in a single step from commercially available compounds.
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Affiliation(s)
- Jayden Price
- Department of Chemistry, University of New Brunswick, Fredericton, New Brunswick, CanadaE3B 5A3.
| | - Emily Albright
- Department of Chemistry, University of New Brunswick, Fredericton, New Brunswick, CanadaE3B 5A3.
| | - Andreas Decken
- Department of Chemistry, University of New Brunswick, Fredericton, New Brunswick, CanadaE3B 5A3.
| | - Sara Eisler
- Department of Chemistry, University of New Brunswick, Fredericton, New Brunswick, CanadaE3B 5A3.
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12
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Zhang X, Cao WB, Li HY, Xu XP, Ji SJ. Synthesis of Polysubstituted Maleimides via Metal-Free Cascade Reaction of Isocyanides and α-Diazoketones. J Org Chem 2019; 84:16237-16244. [DOI: 10.1021/acs.joc.9b02830] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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13
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Liang YX, Meng XH, Yang M, Mehfooz H, Zhao YL. Zn(OAc)2-catalyzed tandem cyclization of isocyanides, α-diazoketones, and anhydrides: a general route to polysubstituted maleimides. Chem Commun (Camb) 2019; 55:12519-12522. [DOI: 10.1039/c9cc05802h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A zinc-catalyzed three-component reaction of isocyanides, α-diazoketones, and anhydrides has been realized as a novel and efficient method for the synthesis of polysubstituted maleimides.
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Affiliation(s)
- Yong-Xin Liang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University
- Changchun 130024
- China
| | - Xiang-He Meng
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University
- Changchun 130024
- China
| | - Ming Yang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University
- Changchun 130024
- China
| | - Haroon Mehfooz
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University
- Changchun 130024
- China
| | - Yu-Long Zhao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University
- Changchun 130024
- China
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14
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Hu W, Zheng J, Li J, Liu B, Wu W, Liu H, Jiang H. Assembly of Polysubstituted Maleimides via Palladium-Catalyzed Cyclization Reaction of Alkynes with Isocyanides. J Org Chem 2016; 81:12451-12458. [PMID: 27978748 DOI: 10.1021/acs.joc.6b02227] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
An efficient and convenient palladium-catalyzed cyclization reaction of alkynes with isocyanides is described herein. This protocol allows the practical synthesis of many valuable polysubstituted maleimide derivatives after hydrolysis with a broad scope of substrates and mild reaction conditions. C-C, C═O, and C-N bonds were constructed in this transformation with isocyanide serving as both C and N sources.
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Affiliation(s)
- Weigao Hu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, China
| | - Jia Zheng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, China
| | - Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, China
| | - Bifu Liu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, China
| | - Haiyang Liu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, China
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15
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Zhu F, Li Y, Wang Z, Wu XF. An Efficient Rhodium-Catalyzed Carbonylative Annulation of Internal Alkynes and Anilines To Produce Maleimides. ChemCatChem 2016. [DOI: 10.1002/cctc.201601092] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Fengxiang Zhu
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Yahui Li
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Zechao Wang
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert-Einstein-Strasse 29a 18059 Rostock Germany
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16
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Goel A, Kumar V, Hemberger Y, Singh FV, Nag P, Knauer M, Kant R, Raghunandan R, Maulik PR, Bringmann G. Rotationally Hindered Biphenyls and Terphenyls: Synthesis, Molecular Dynamics, and Configurational Assignment. J Org Chem 2016; 81:10721-10732. [DOI: 10.1021/acs.joc.6b01804] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Atul Goel
- Medicinal
and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh 226031, India
| | - Vijay Kumar
- Medicinal
and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh 226031, India
| | - Yasmin Hemberger
- Institute
of Organic Chemistry, University of Würzburg, Am Hubland, D-97074 Würzburg, Germany
| | - Fateh V. Singh
- Medicinal
and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh 226031, India
| | - Pankaj Nag
- Medicinal
and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh 226031, India
| | - Michael Knauer
- Institute
of Organic Chemistry, University of Würzburg, Am Hubland, D-97074 Würzburg, Germany
| | - Ruchir Kant
- Molecular
and Structural Biology Division, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh 226031, India
| | - Resmi Raghunandan
- Molecular
and Structural Biology Division, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh 226031, India
| | - Prakas Ranjan Maulik
- Molecular
and Structural Biology Division, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh 226031, India
| | - Gerhard Bringmann
- Institute
of Organic Chemistry, University of Würzburg, Am Hubland, D-97074 Würzburg, Germany
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17
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Górecki M, Roszkowski P, Błachut D, Maurin JK, Budzianowski A, Frelek J, Czarnocki Z. Atropoisomerism in Mono- and Diaryl-Substituted 4-Amino-2,6-lutidines. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600456] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Marcin Górecki
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Piotr Roszkowski
- Faculty of Chemistry; University of Warsaw; Pasteura 1 02-093 Warsaw Poland
| | - Dariusz Błachut
- Forensic Laboratory; Internal Security Agency; 1 Sierpnia 30A 02-134 Warsaw Poland
| | - Jan K. Maurin
- National Medicines Institute; Chełmska 30/34 00-725 Warsaw Poland
- National Centre for Nuclear Research; Andrzeja Sołtana 7 05-400 Otwock-Świerk Poland
| | - Armand Budzianowski
- National Centre for Nuclear Research; Andrzeja Sołtana 7 05-400 Otwock-Świerk Poland
| | - Jadwiga Frelek
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Zbigniew Czarnocki
- Faculty of Chemistry; University of Warsaw; Pasteura 1 02-093 Warsaw Poland
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18
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Mazzanti A, Mercanti E, Mancinelli M. Axial Chirality about Boron–Carbon Bond: Atropisomeric Azaborines. Org Lett 2016; 18:2692-5. [DOI: 10.1021/acs.orglett.6b01159] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Andrea Mazzanti
- Department of Industrial
Chemistry “Toso Montanari”, University of Bologna, Viale del Risorgimento 4, I-40136 Bologna, Italy
| | - Elia Mercanti
- Department of Industrial
Chemistry “Toso Montanari”, University of Bologna, Viale del Risorgimento 4, I-40136 Bologna, Italy
| | - Michele Mancinelli
- Department of Industrial
Chemistry “Toso Montanari”, University of Bologna, Viale del Risorgimento 4, I-40136 Bologna, Italy
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19
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Jafarpour F, Shamsianpour M. Palladium-catalyzed cross-dehydrogenative coupling of maleimides with simple arenes: a fast track to highly substituted maleimides. RSC Adv 2016. [DOI: 10.1039/c6ra24420c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A combination of PivOH/TFA, accelerates an unprecedented palladium-catalyzed CDC diarylation of unfunctionalized maleimides with simple arenes.
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Affiliation(s)
- Farnaz Jafarpour
- School of Chemistry
- College of Science
- University of Tehran
- Tehran
- Iran
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20
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Ehn M, Vassilev NG, Pašteka LF, Dangalov M, Putala M. Atropisomerism of 2,2′-Diaryl-1,1′-binaphthalenes Containing Three Stereogenic Axes: Experimental and Computational Study. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500840] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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21
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Investigation of the C–N bond rotation of spirophosphorane carbamates by dynamic NMR and DFT calculation. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.09.052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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22
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Dynamic Behavior of Clobazam on High-Performance Liquid Chromatography Chiral Stationary Phases. Chirality 2015; 28:17-21. [DOI: 10.1002/chir.22542] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 09/03/2015] [Accepted: 09/09/2015] [Indexed: 12/24/2022]
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23
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Bencivenni G, Righi P, Lunazzi L, Ranieri S, Mancinelli M, Mazzanti A. Enantioselective Preparation, Conformational Analysis and Absolute Configuration of Highly Substituted Aziridines. Chirality 2015; 27:875-87. [DOI: 10.1002/chir.22522] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 08/04/2015] [Accepted: 08/04/2015] [Indexed: 12/15/2022]
Affiliation(s)
- Giorgio Bencivenni
- Department of Industrial Chemistry “Toso Montanari”; University of Bologna; Italy
| | - Paolo Righi
- Department of Industrial Chemistry “Toso Montanari”; University of Bologna; Italy
| | - Lodovico Lunazzi
- Department of Industrial Chemistry “Toso Montanari”; University of Bologna; Italy
| | - Silvia Ranieri
- Department of Industrial Chemistry “Toso Montanari”; University of Bologna; Italy
| | - Michele Mancinelli
- Department of Industrial Chemistry “Toso Montanari”; University of Bologna; Italy
| | - Andrea Mazzanti
- Department of Industrial Chemistry “Toso Montanari”; University of Bologna; Italy
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24
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Berardozzi R, Guido CA, Capozzi MAM, Cardellicchio C, Di Bari L, Pescitelli G. Circular Dichroism and TDDFT Investigation of Chiral Fluorinated Aryl Benzyl Sulfoxides. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500648] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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25
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Fuertes P, García-Valverde M, Pascual R, Rodríguez T, Rojo J, García-Calvo J, Calvo P, Cuevas JV, García-Herbosa G, Torroba T. Structural Conformers of (1,3-Dithiol-2-ylidene)ethanethioamides: The Balance between Thioamide Rotation and Preservation of Classical Sulfur-Sulfur Hypervalent Bonds. J Org Chem 2014; 80:30-9. [PMID: 25414966 DOI: 10.1021/jo501473z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The reaction of N-(2-phthalimidoethyl)-N-alkylisopropylamines and S2Cl2 gave 4-N-(2-phthalimidoethyl)-N-alkylamino-5-chloro-1,2-dithiol-3-thiones that quantitatively cycloadded to dimethyl or diethyl acetylenedicarboxylate to give stable thioacid chlorides, which in turn reacted with one equivalent of aniline or a thiole to give thioanilides or a dithioester. Several compounds of this series showed atropisomers that were studied by a combination of dynamic NMR, simulation of the signals, conformational analysis by DFT methods, and single crystal X-ray diffraction, showing a good correlation between the theoretical calculations, the experimental values of energies, and the preferred conformations in the solid state. The steric hindering of the crowded substitution at the central amine group was found to be the reason for the presence of permanent atropisomers in this series of compounds and the cause of a unique disposition of the thioxo group at close-to-right angles with respect to the plane defined by the 1,3-dithiole ring in the dithiafulvene derivatives, thus breaking the sulfur-sulfur hypervalent bond that is always found in this kind of compounds.
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Affiliation(s)
- Pedro Fuertes
- Department of Chemistry, Faculty of Sciences, University of Burgos, 09001 Burgos, Spain
| | - María García-Valverde
- Department of Chemistry, Faculty of Sciences, University of Burgos, 09001 Burgos, Spain
| | - Ricardo Pascual
- Department of Chemistry, Faculty of Sciences, University of Burgos, 09001 Burgos, Spain
| | - Teresa Rodríguez
- Department of Chemistry, Faculty of Sciences, University of Burgos, 09001 Burgos, Spain
| | - Josefa Rojo
- Department of Chemistry, Faculty of Sciences, University of Burgos, 09001 Burgos, Spain
| | - José García-Calvo
- Department of Chemistry, Faculty of Sciences, University of Burgos, 09001 Burgos, Spain
| | - Patricia Calvo
- Department of Chemistry, Faculty of Sciences, University of Burgos, 09001 Burgos, Spain
| | - José V Cuevas
- Department of Chemistry, Faculty of Sciences, University of Burgos, 09001 Burgos, Spain
| | | | - Tomás Torroba
- Department of Chemistry, Faculty of Sciences, University of Burgos, 09001 Burgos, Spain
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26
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Gunasekaran P, Perumal S, Menéndez JC, Mancinelli M, Ranieri S, Mazzanti A. Axial Chirality of 4-Arylpyrazolo[3,4-b]pyridines. Conformational Analysis and Absolute Configuration. J Org Chem 2014; 79:11039-50. [DOI: 10.1021/jo502047n] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Pethaiah Gunasekaran
- Department
of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625 021, Tamil Nadu, India
| | - Subbu Perumal
- Department
of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625 021, Tamil Nadu, India
| | - J. Carlos Menéndez
- Departamento
de Química Orgánica y Farmacéutica, Facultad
de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | - Michele Mancinelli
- Department
of Industrial Chemistry “Toso Montanari”, University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - Silvia Ranieri
- Department
of Industrial Chemistry “Toso Montanari”, University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - Andrea Mazzanti
- Department
of Industrial Chemistry “Toso Montanari”, University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
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27
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Chiarucci M, Ciogli A, Mancinelli M, Ranieri S, Mazzanti A. The Experimental Observation of the Intramolecular NO2/CO Interaction in Solution. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201402366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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28
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Chiarucci M, Ciogli A, Mancinelli M, Ranieri S, Mazzanti A. The Experimental Observation of the Intramolecular NO2/CO Interaction in Solution. Angew Chem Int Ed Engl 2014; 53:5405-9. [DOI: 10.1002/anie.201402366] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 03/11/2014] [Indexed: 11/06/2022]
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29
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Lauer MH, Drekener RL, Correia CRD, Gehlen MH. Fluorescence from bisaryl-substituted maleimide derivatives. Photochem Photobiol Sci 2014; 13:859-66. [DOI: 10.1039/c4pp00001c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A series of bisaryl-substituted fluorescent maleimides was synthesized via the Heck arylation.
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Affiliation(s)
- Milena Helmer Lauer
- Institute of Chemistry of São Carlos
- University of São Paulo
- São Carlos, Brazil
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30
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Najahi E, Vanthuyne N, Nepveu F, Jean M, Alkorta I, Elguero J, Roussel C. Atropisomerization in N-aryl-2(1H)-pyrimidin-(thi)ones: A Ring-Opening/Rotation/Ring-Closure Process in Place of a Classical Rotation around the Pivot Bond. J Org Chem 2013; 78:12577-84. [DOI: 10.1021/jo402149f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ennaji Najahi
- Université de Toulouse, UPS, PHARMA-DEV, UMR 152, 118 Route de Narbonne, 31062 Toulouse cedex 9, France
- IRD, UMR 152, 31062 Toulouse cedex 9, France
| | - Nicolas Vanthuyne
- Aix Marseille Université, Centrale Marseille, CNRS,
iSm2 UMR 7313, 13397, Marseille, France
| | - Françoise Nepveu
- Université de Toulouse, UPS, PHARMA-DEV, UMR 152, 118 Route de Narbonne, 31062 Toulouse cedex 9, France
- IRD, UMR 152, 31062 Toulouse cedex 9, France
| | - Marion Jean
- Aix Marseille Université, Centrale Marseille, CNRS,
iSm2 UMR 7313, 13397, Marseille, France
| | - Ibon Alkorta
- Instituto de Quimica Medica (IQM-CSIC), Juan de
la Cierva, 3, 28006 Madrid, Spain
| | - José Elguero
- Instituto de Quimica Medica (IQM-CSIC), Juan de
la Cierva, 3, 28006 Madrid, Spain
| | - Christian Roussel
- Aix Marseille Université, Centrale Marseille, CNRS,
iSm2 UMR 7313, 13397, Marseille, France
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