1
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Winfrey L, Yun L, Passeri G, Suntharalingam K, Pulis AP. H 2 O ⋅ B(C 6 F 5 ) 3 -Catalyzed para-Alkylation of Anilines with Alkenes Applied to Late-Stage Functionalization of Non-Steroidal Anti-Inflammatory Drugs. Chemistry 2024; 30:e202303130. [PMID: 38224207 DOI: 10.1002/chem.202303130] [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: 09/26/2023] [Indexed: 01/16/2024]
Abstract
Anilines are core motifs in a variety of important molecules including medicines, materials and agrochemicals. We report a straightforward procedure that allows access to new chemical space of anilines via their para-C-H alkylation. The method utilizes commercially available catalytic H2 O ⋅ B(C6 F5 )3 and is highly selective for para-C-alkylation (over N-alkylation and ortho-C-alkylation) of anilines, with a wide scope in both the aniline substrates and alkene coupling partners. Readily available alkenes are used, and include new classes of alkene for the first time. The mild reaction conditions have allowed the procedure to be applied to the late-stage-functionalization of non-steroidal anti-inflammatory drugs (NSAIDs), including fenamic acids and diclofenac. The formed novel NSAID derivatives display improved anti-inflammatory properties over the parent NSAID structure.
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Affiliation(s)
- Laura Winfrey
- School of Chemistry, University of Leicester, Leicester, LE1 7RH, United Kingdom
| | - Lei Yun
- School of Chemistry, University of Leicester, Leicester, LE1 7RH, United Kingdom
| | - Ginevra Passeri
- School of Chemistry, University of Leicester, Leicester, LE1 7RH, United Kingdom
| | | | - Alexander P Pulis
- School of Chemistry, University of Leicester, Leicester, LE1 7RH, United Kingdom
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2
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Mondal K, Patra S, Halder P, Mukhopadhyay N, Das P. CuF 2/DMAP-Catalyzed N-Vinylation: Scope and Mechanistic Study. Org Lett 2023. [PMID: 36546851 DOI: 10.1021/acs.orglett.2c03856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
CuF2/DMAP has been established as an excellent catalytic system for vinylsilane-promoted N-vinylation of amides and azoles at room temperature without an external fluoride source. A mechanism has been proposed on the basis of the isolation of reactive intermediate [Cu(DMAP)4Cl2], fluoride ion-assisted transmetalation, and ultraviolet-visible spectroscopic studies. The catalytic efficiency of the synthesized and structurally characterized [Cu(DMAP)4Cl2] complex has been demonstrated. The valuable monomers for water-soluble polymers, viz., NVP, NVC, and NVIBA, were synthesized on a gram scale.
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Affiliation(s)
- Krishanu Mondal
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (Indian School of Mines), Dhanbad 826004, India
| | - Susanta Patra
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (Indian School of Mines), Dhanbad 826004, India
| | - Pallabi Halder
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (Indian School of Mines), Dhanbad 826004, India
| | - Narottam Mukhopadhyay
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal 741 246, India
| | - Parthasarathi Das
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (Indian School of Mines), Dhanbad 826004, India
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3
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Ghosh T, Bhakta S. Advancements in Gold-Catalyzed Cascade Reactions to Access Carbocycles and Heterocycles: An Overview. CHEM REC 2023; 23:e202200225. [PMID: 36543388 DOI: 10.1002/tcr.202200225] [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: 09/30/2022] [Revised: 12/03/2022] [Indexed: 12/24/2022]
Abstract
This review summarizes recent developments (from 2006 to 2022) in numerous important and efficient carbo- and heterocycle generations using gold-catalyzed cascade protocols. Herein, methodologies involve selectivity, cost-effectiveness, and ease of product formation being controlled by the ligand as well as the counter anion, catalyst, substrate, and reaction conditions. Gold-catalyzed cascade reactions covered different strategies through the compilation of various approaches such as cyclization, hydroarylation, intermolecular and intramolecular cascade reactions, etc. This entitled reaction is also useful for the synthesis of spiro, fused, bridged carbo- and heterocycles.
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Affiliation(s)
- T Ghosh
- Department of Chemistry, Jadavpur University, Kolkata, 700 032, West Bengal, India.,Department of Applied Chemistry, Maulana Abul Kalam Azad University of Technology, West Bengal, Haringhata-741249, Nadia, West Bengal, India
| | - S Bhakta
- Department of Applied Chemistry, Maulana Abul Kalam Azad University of Technology, West Bengal, Haringhata-741249, Nadia, West Bengal, India
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4
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Motornov V, Beier P. Synthesis of N-vinyl isothiocyanates and carbamates by the cleavage of NH-1,2,3-triazoles with one-carbon electrophiles. Org Biomol Chem 2023; 21:1143-1147. [PMID: 36647812 DOI: 10.1039/d2ob02115c] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Metal-free cascade reaction of NH-1,2,3-triazoles with one-carbon electrophiles, such as thiophosgene and triphosgene, led to N-vinylated ring cleavage products. Using this approach the synthesis of N-vinylisothiocyanates from NH-triazoles and thiophosgene was achieved. A variety of multifunctional compounds, such as N-vinylcarbamates, unsymmetrical vinylureas, carbamothioates, etc. was prepared by a one-pot method from NH-triazoles, triphosgene and nucleophiles.
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Affiliation(s)
- Vladimir Motornov
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10 Prague, Czech Republic.
| | - Petr Beier
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10 Prague, Czech Republic.
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5
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Wang H, Wang H, Li L, Wang X, Sun R, Zhou M. Ruthenium(II)‐Catalyzed Hydroamination of Allenoates: A Regioselective Synthesis of Allylamines. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hua Wang
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun 113001 People's Republic of China
| | - He Wang
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun 113001 People's Republic of China
| | - Lei Li
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun 113001 People's Republic of China
| | - Xin Wang
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun 113001 People's Republic of China
| | - Ran Sun
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun 113001 People's Republic of China
| | - Ming‐Dong Zhou
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun 113001 People's Republic of China
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6
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Shen SJ, Wang LM, Gong GM, Wang YJ, Liang JY, Wang JW. Construction of sulfur-containing N-vinylimides: N-addition of imides to propargyl sulfonium salts. RSC Adv 2022; 12:12663-12671. [PMID: 35480347 PMCID: PMC9039989 DOI: 10.1039/d2ra01117d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 04/08/2022] [Indexed: 11/25/2022] Open
Abstract
An N-addition reaction between imides and propargyl sulfonium salts was developed to afford sulfur-containing N-vinylimides with moderate to excellent yields. Under the activation of NaOAc·3H2O, imides could undergo deprotonation and propargyl sulfonium salts could isomerize to allenic sulfonium salts. The N-nucleophilic attack initiates the reaction and gives the desired products. Various imides, including arylimides, aliphatic imides and N-(arylsulfonyl) alkyl acylamides, and even bioactive saccharin, thalidomide and pomalidomide could provide organosulfur N-vinylimides compounds. The simple, mild and metal-free reaction conditions, the broad scope of substrates, gram-scale synthesis and convenient transformation embody the synthetic superiority of this process.
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Affiliation(s)
- Shou-Jie Shen
- Key Laboratory of Magnetic Molecules, Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University Linfen 041004 China
| | - Le-Mei Wang
- Key Laboratory of Magnetic Molecules, Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University Linfen 041004 China
| | - Guo-Mei Gong
- Key Laboratory of Magnetic Molecules, Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University Linfen 041004 China
| | - Yan-Jiao Wang
- Key Laboratory of Magnetic Molecules, Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University Linfen 041004 China
| | - Jin-Yan Liang
- College of Life Science, Shanxi Normal University Linfen 041004 China
| | - Jun-Wen Wang
- Key Laboratory of Magnetic Molecules, Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University Linfen 041004 China
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7
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Liu J, Zuo S, Huang J, Zhang F, Zuo A. Synthesis of unsymmetrical 1,3-substituted-1,3-dihydro-benzimidazolones via copper-catalyzed C–N coupling under visible light. NEW J CHEM 2022. [DOI: 10.1039/d2nj02054h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Although photoinduced copper catalysis for carbon–nitrogen (C–N) amine bond formation with alkyl/aryl halides has been developed, the potential of copper photocatalysis for the synthesis of 1,3-substituted benzimidazolones remains mostly unexplored.
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Affiliation(s)
- Jianjun Liu
- State Key Laboratory of Chemical Resource Engineering, Department of Applied Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100124, China
| | - Shengli Zuo
- State Key Laboratory of Chemical Resource Engineering, Department of Applied Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100124, China
| | - Jieying Huang
- State Key Laboratory of Chemical Resource Engineering, Department of Applied Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100124, China
| | - Fan Zhang
- State Key Laboratory of Chemical Resource Engineering, Department of Applied Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100124, China
| | - Ang Zuo
- Department of Pharmaceutical Sciences, College of Pharmacy and UICentre (Drug Discovery at UIC), University of Illinois at Chicago, Chicago, Illinois 60612, USA
- SynChem, Inc., 1400 Chase Avenue, Elk Grove Village, Illinois 60007, USA
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8
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Ghosh T, Chatterjee J, Bhakta S. Gold-Catalyzed Hydroarylation Reactions: A Comprehensive Overview. Org Biomol Chem 2022; 20:7151-7187. [DOI: 10.1039/d2ob00960a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The hydroarylation of alkynes, alkene, and, allene is a cost-effective and efficient way to incorporate unsaturated moieties into aromatic substrates. This review focuses on gold-catalyzed hydroarylation, which produces aromatic alkenes,...
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9
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Berntsen LN, Solvi TN, Sørnes K, Wragg DS, Sandtorv AH. Cu-catalyzed C(sp 2)-N-bond coupling of boronic acids and cyclic imides. Chem Commun (Camb) 2021; 57:11851-11854. [PMID: 34698731 DOI: 10.1039/d1cc04356k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A general Cu-catalyzed strategy for coupling cyclic imides and alkenylboronic acids by forming C(sp2)-N-bonds is reported. The method enables the practical and mild preparation of (E)-enimides. A large range of cyclic imides are allowed, and di- and tri-substituted alkenylboronic acids can be used. Full retention was observed in the configuration of the alkene double bond in the coupled products. The method is also applicable for preparing N-arylimides, using arylboronic acids as coupling partners. The usefulness of this strategy is exemplified by the convenient derivatization of the chemotherapy medication 5-flurouracil, the nucleoside uridine and the anti-epileptic drug phenytoin.
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Affiliation(s)
| | | | - Kristian Sørnes
- Department of Chemistry, University of Oslo, Oslo N-0315, Norway.
| | - David S Wragg
- Department of Chemistry, University of Oslo, Oslo N-0315, Norway.
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10
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Sitte NA, Menche M, Tužina P, Bienewald F, Schäfer A, Comba P, Rominger F, Hashmi ASK, Schaub T. Phosphine-Catalyzed Vinylation at Low Acetylene Pressure. J Org Chem 2021; 86:13041-13055. [PMID: 34469141 DOI: 10.1021/acs.joc.1c01807] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The vinylation of various nucleophiles with acetylene at a maximum pressure of 1.5 bar is achieved by organocatalysis with easily accessible phosphines like tri-n-butylphosphine. A detailed mechanistic investigation by quantum-chemical and experimental methods supports a nucleophilic activation of acetylene by the phosphine catalyst. At 140 °C and typically 5 mol % catalyst loading, cyclic amides, oxazolidinones, ureas, unsaturated cyclic amines, and alcohols were successfully vinylated. Furthermore, the in situ generation of a vinyl phosphonium species can also be utilized in Wittig-type functionalization of aldehydes.
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Affiliation(s)
- Nikolai A Sitte
- Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, D-69120 Heidelberg, Germany
| | - Maximilian Menche
- Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, D-69120 Heidelberg, Germany.,BASF SE, Quantum Chemistry, Carl-Bosch-Straße 38, D-67056 Ludwigshafen, Germany
| | - Pavel Tužina
- BASF SE, Chemical Synthesis Research, Carl-Bosch-Straße 38, D-67056 Ludwigshafen, Germany
| | - Frank Bienewald
- BASF SE, Chemical Synthesis Research, Carl-Bosch-Straße 38, D-67056 Ludwigshafen, Germany
| | - Ansgar Schäfer
- BASF SE, Quantum Chemistry, Carl-Bosch-Straße 38, D-67056 Ludwigshafen, Germany
| | - Peter Comba
- Institute of Inorganic Chemistry & Interdisciplinary Center for Scientific Computing, Heidelberg University, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Frank Rominger
- Institute of Organic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - A Stephen K Hashmi
- Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, D-69120 Heidelberg, Germany.,Institute of Organic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Thomas Schaub
- Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, D-69120 Heidelberg, Germany.,BASF SE, Chemical Synthesis Research, Carl-Bosch-Straße 38, D-67056 Ludwigshafen, Germany
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11
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Erokhin KS, Gordeev EG, Samoylenko DE, Rodygin KS, Ananikov VP. 3D Printing to Increase the Flexibility of the Chemical Synthesis of Biologically Active Molecules: Design of On-Demand Gas Generation Reactors. Int J Mol Sci 2021; 22:9919. [PMID: 34576082 PMCID: PMC8472564 DOI: 10.3390/ijms22189919] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 11/16/2022] Open
Abstract
The development of new drugs is accelerated by rapid access to functionalized and D-labeled molecules with improved activity and pharmacokinetic profiles. Diverse synthetic procedures often involve the usage of gaseous reagents, which can be a difficult task due to the requirement of a dedicated laboratory setup. Here, we developed a special reactor for the on-demand production of gases actively utilized in organic synthesis (C2H2, H2, C2D2, D2, and CO2) that completely eliminates the need for high-pressure equipment and allows for integrating gas generation into advanced laboratory practice. The reactor was developed by computer-aided design and manufactured using a conventional 3D printer with polypropylene and nylon filled with carbon fibers as materials. The implementation of the reactor was demonstrated in representative reactions with acetylene, such as atom-economic nucleophilic addition (conversions of 19-99%) and nickel-catalyzed S-functionalization (yields 74-99%). One of the most important advantages of the reactor is the ability to generate deuterated acetylene (C2D2) and deuterium gas (D2), which was used for highly significant, atom-economic and cost-efficient deuterium labeling of S,O-vinyl derivatives (yield 68-94%). Successful examples of their use in organic synthesis are provided to synthesize building blocks of heteroatom-functionalized and D-labeled biologically active organic molecules.
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Affiliation(s)
- Kirill S. Erokhin
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russia; (K.S.E.); (E.G.G.); (K.S.R.)
| | - Evgeniy G. Gordeev
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russia; (K.S.E.); (E.G.G.); (K.S.R.)
| | - Dmitriy E. Samoylenko
- Institute of Chemistry, Saint Petersburg State University, Universitetsky Prospect 26, 198504 Peterhof, Russia;
| | - Konstantin S. Rodygin
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russia; (K.S.E.); (E.G.G.); (K.S.R.)
- Institute of Chemistry, Saint Petersburg State University, Universitetsky Prospect 26, 198504 Peterhof, Russia;
| | - Valentine P. Ananikov
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russia; (K.S.E.); (E.G.G.); (K.S.R.)
- Institute of Chemistry, Saint Petersburg State University, Universitetsky Prospect 26, 198504 Peterhof, Russia;
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12
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Li D, Qiu S, Chen Y, Wu L. K
2
CO
3
‐Promoted Pyrazoles Synthesis from 1,3‐Dipolar Cycloaddition of
N
‐Tosylhydrazones with Acetylene Gas. ChemistrySelect 2020. [DOI: 10.1002/slct.202003067] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Dongying Li
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan Normal University No.99, Longkun South Road Haikou 571158 P. R. China
| | - Shanguang Qiu
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan Normal University No.99, Longkun South Road Haikou 571158 P. R. China
| | - Yuxue Chen
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan Normal University No.99, Longkun South Road Haikou 571158 P. R. China
| | - Luyong Wu
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan Normal University No.99, Longkun South Road Haikou 571158 P. R. China
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