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Javorská Ž, Rimpelová S, Labíková M, Perlíková P. Synthesis of cytochalasan analogues with aryl substituents at position 10. Org Biomol Chem 2024; 22:4536-4549. [PMID: 38758050 DOI: 10.1039/d4ob00634h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Cytochalasans are fungal metabolites that are known to inhibit actin polymerization. Despite their remarkable bioactivity, there are few studies on the structure-activity relationship (SAR) of the cytochalasan scaffold. The full potential of structural modifications remains largely unexplored. The substituent at position 10 of the cytochalasan scaffold is derived from an amino acid incorporated into the cytochalasan core, thus limiting the structural variability at this position in natural products. Additionally, modifications at this position have only been achieved through semisynthetic or mutasynthetic approaches using modified amino acids. This paper introduces a modular approach for late-stage modifications at position 10 of the cytochalasan scaffold. Iron-mediated cross-coupling reactions with corresponding Grignard reagents were used to introduce aryl or benzyl groups in position 10, resulting in the synthesis of six new cytochalasan analogues bearing non-natural aromatic residues. This methodology enables further exploration of modifications at this position and SAR studies among cytochalasan analogues.
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Affiliation(s)
- Žaneta Javorská
- Department of Organic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague, Czech Republic.
| | - Silvie Rimpelová
- Department of Biochemistry and Microbiology, Faculty of Food and Biochemical Technology, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech Republic
| | - Magdaléna Labíková
- Department of Organic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague, Czech Republic.
| | - Pavla Perlíková
- Department of Organic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague, Czech Republic.
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám. 2, 160 00 Prague, Czech Republic
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2
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Spitzer S, Wloka J, Pietruszka J, Kayser O. Generation of Cannabigerolic Acid Derivatives and Their Precursors by Using the Promiscuity of the Aromatic Prenyltransferase NphB. Chembiochem 2023; 24:e202300441. [PMID: 37690998 DOI: 10.1002/cbic.202300441] [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: 06/13/2023] [Revised: 09/01/2023] [Accepted: 09/07/2023] [Indexed: 09/12/2023]
Abstract
NphB is an aromatic prenyltransferase with high promiscuity for phenolics including flavonoids, isoflavonoids, and plant polyketides. It has been demonstrated that cannabigerolic acid is successfully formed by the reaction catalysed by NphB using geranyl diphosphate and olivetolic acid as substrates. In this study, the substrate specificity of NphB was further determined by using olivetolic acid derivatives as potential substrates for the formation of new synthetic cannabinoids. The derivatives differ in the hydrocarbon chain attached to C6 of the core structure. We performed in silico experiments, including docking of olivetolic acid derivatives, to identify differences in their binding modes. Substrate acceptance was predicted. Based on these results, a library of olivetolic acid derivatives was constructed and synthesized by using different organic synthetic routes. Conversion was monitored in in vitro assays with purified NphB versions. For the substrates leading to a high conversion olivetolic acid-C8, olivetolic acid-C2 and 2-benzyl-4,6-dihydroxybenzoic acid, the products were further elucidated and identified as cannbigerolic acid derivatives. Therefore, these substrates show potential to be adapted in cannabinoid biosynthesis.
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Affiliation(s)
- Saskia Spitzer
- Technical Biochemistry Laboratory, Technical University Dortmund, 44227, Dortmund, Germany
| | - Jasmin Wloka
- Institute of Bioorganic Chemistry, Heinrich-Heine University Düsseldorf, 52426, Jülich, Germany
| | - Jörg Pietruszka
- Institute of Bioorganic Chemistry, Heinrich-Heine University Düsseldorf, 52426, Jülich, Germany
| | - Oliver Kayser
- Technical Biochemistry Laboratory, Technical University Dortmund, 44227, Dortmund, Germany
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3
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Lokolkar MS, Kolekar YA, Jagtap PA, Bhanage BM. Cu-Catalyzed C-C Coupling Reactions. TOP ORGANOMETAL CHEM 2023. [DOI: 10.1007/3418_2022_81] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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4
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Park JY, Ko JH, Lee HJ, Park JH, Lee J, Sa S, Shin EJ, Lee BY. Up-Scale Synthesis of p-(CH 2=CH)C 6H 4CH 2CH 2CH 2Cl and p-ClC 6H 4SiR 3 by CuCN-Catalyzed Coupling Reactions of Grignard Reagents with Organic Halides. ACS OMEGA 2022; 7:46849-46858. [PMID: 36570214 PMCID: PMC9773938 DOI: 10.1021/acsomega.2c05951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 12/01/2022] [Indexed: 06/17/2023]
Abstract
Grignard reagents featuring carbanion characteristics are mostly unreactive toward alkyl halides and require a catalyst for the coupling reaction. With the need to prepare p-(CH2=CH)C6H4CH2CH2CH2Cl on a large scale, the coupling reaction of p-(CH2=CH)C6H4MgCl with BrCH2CH2CH2Cl was attempted to screen the catalysts, and CuCN was determined to be the best catalyst affording the desired compound in 80% yield with no formation of Wurtz coupling side product CH2=CHC6H4-C6H4CH=CH2. The p-(CH2=CH)C6H4Cu(CN)MgCl species was proposed as an intermediate based on the X-ray structure of PhCu(CN)Mg(THF)4Cl. p-ClC6H4MgCl did not react with sterically encumbered R3SiCl (R = n-Bu or n-octyl). However, the reaction took place with the addition of 3 mol % CuCN catalyst, affording the desired compound p-ClC6H4SiR3. The structures of p-(CH2=CH)C6H4CH2CH2CH2MgCl and p-ClC6H4MgCl were also elucidated, which existed as an aggregate with MgCl2, suggesting that some portion of the Grignard reagents were possibly lost in the coupling reaction due to coprecipitation with the byproduct MgCl2. R3SiCl (R = n-Bu or n-octyl) was also prepared easily and economically with no formation of R4Si when SiCl4 was reacted with 4 equiv of RMgCl. Using the developed syntheses, [p-(CH2=CH)C6H4CH2CH2CH2]2Zn and iPrN[P(C6H4-p-SiR3)2]2, which are potentially useful compounds for the production of PS-block-PO-block-PS and 1-octene, respectively, were efficiently synthesized with substantial cost reductions.
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Affiliation(s)
- Ju Yong Park
- Department
of Molecular Science and Technology, Ajou
University, Suwon16499, South Korea
| | - Ji Hyeong Ko
- Department
of Molecular Science and Technology, Ajou
University, Suwon16499, South Korea
| | - Hyun Ju Lee
- Department
of Molecular Science and Technology, Ajou
University, Suwon16499, South Korea
| | - Jun Hyeong Park
- Department
of Molecular Science and Technology, Ajou
University, Suwon16499, South Korea
| | - Junseong Lee
- Department
of Chemistry, Chonnam National University, Gwangju61186, South Korea
| | | | | | - Bun Yeoul Lee
- Department
of Molecular Science and Technology, Ajou
University, Suwon16499, South Korea
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5
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Lee J, Ju X, Lee M, Jiang Q, Jang H, Kim WS, Wu L, Williams S, Wang XJ, Zeng X, Payne J, Han ZS. Copper Catalyzed Regioselective and Stereospecific Aziridine Opening with Pyridyl Grignard Nucleophiles. Org Lett 2022; 24:2655-2659. [PMID: 35377668 DOI: 10.1021/acs.orglett.2c00703] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Copper catalyzed regioselective and stereospecific coupling between aziridines and in situ generated pyridine Grignard reagents is reported. This method provides β-pyridylethylamines with diverse structures and functionalities from aziridines and iodopyridines. β-Pyridylethylamines are potential scaffolds for the synthesis of biologically active compounds often found in pharmaceuticals. The synthesis of challenging chiral dihydroazaindoles was also achieved through mild one-pot reaction conditions via aziridine opening followed by nucleophilic cyclization.
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Affiliation(s)
- Jaehee Lee
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Xuan Ju
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Miseon Lee
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Qi Jiang
- Department of Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Hwanjong Jang
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Wan Shin Kim
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Linglin Wu
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Suja Williams
- Department of Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Xiao-Jun Wang
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Xingzhong Zeng
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Jenna Payne
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Zhengxu S Han
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
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Battula S, Desai AA, Soni JY, Mehta DP. Accessing Grignard Reluctant Aldehyde in 2-Oxoaldehyde by Organocuprates to Give [1,2] Addition and Oxidative Coupling Reactions. ACS OMEGA 2022; 7:5069-5078. [PMID: 35187323 PMCID: PMC8851654 DOI: 10.1021/acsomega.1c06031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 01/20/2022] [Indexed: 06/14/2023]
Abstract
Novel finding of aldehyde in 2-oxoaldehyde (2OA) is presented as it unprecedentedly disinclines to react with Grignard reagents but reacts with moderate organocuprate reagents in anaerobic condition to give [1,2] addition (α-hydroxyketones) reaction. In the presence of air, the reaction produces an efficient protocol for the synthesis of 1,2-diones through a copper-catalyzed oxidative cross-coupling reaction at room temperature. Mechanistic studies indicate that α-hydroxy ketone perhaps is generated before the hydrolysis step/acid work-up process. The α-keto group of 2OA causes to exhibit this peculiar aldehyde behavior toward these organometallic reagents.
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Affiliation(s)
- Satyanarayana Battula
- Tarsadia
Institute of Chemical Sciences, Uka Tarsadia
University, Bardoli, Gujarat 394350, India
| | - Aman A. Desai
- Aether
Industries Pvt. Ltd., Sachin, Surat, Gujarat 394230, India
| | - Jigar Y. Soni
- Department
of Chemistry, Madhav University, Abu Road, Sirohi, Rajasthan 307026, India
| | - Dhruv P. Mehta
- Aether
Industries Pvt. Ltd., Sachin, Surat, Gujarat 394230, India
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Petruncio G, Elahi-Mohassel S, Girgis M, Paige M. Copper-catalyzed sp3-sp3 cross-coupling of turbo grignards with benzyl halides. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Huang S, Ou W, Li W, Xiao H, Pang Y, Zhou Y, Wang X, Yang X, Wang L. A total synthesis of (+)-brazilin. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152052] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Kobayashi Y. Alkyl Pyridinesulfonates and Allylic Pyridinecarboxylates, New Boosters for the Substitution at Secondary Carbons. HETEROCYCLES 2020. [DOI: 10.3987/rev-19-919] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Cheng LJ, Mankad NP. C–C and C–X coupling reactions of unactivated alkyl electrophiles using copper catalysis. Chem Soc Rev 2020; 49:8036-8064. [DOI: 10.1039/d0cs00316f] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Copper catalysts enable cross-coupling reactions of unactivated alkyl electrophiles to generate C–C and C–X bonds.
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Affiliation(s)
- Li-Jie Cheng
- Department of Chemistry
- University of Illinois at Chicago
- Chicago
- USA
| | - Neal P. Mankad
- Department of Chemistry
- University of Illinois at Chicago
- Chicago
- USA
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11
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5-Hydroxy-2,3-dihydrobenzofuran-derived polyfunctional antioxidants 3. Synthesis and antioxidant activity of 2-dodecylthiomethyland 2-dodecylselenomethyl-5-hydroxy-4,6,7-trimethyl-2,3-dihydrobenzofurans. Russ Chem Bull 2018. [DOI: 10.1007/s11172-018-2239-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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12
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Smrček J, Pohl R, Jahn U. Total syntheses of all tri-oxygenated 16-phytoprostane classes via a common precursor constructed by oxidative cyclization and alkyl-alkyl coupling reactions as the key steps. Org Biomol Chem 2017; 15:9408-9414. [PMID: 29095476 DOI: 10.1039/c7ob02505j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A unified strategy for the total synthesis of the methyl esters of all phytoprostane (PhytoP) classes bearing two ring-oxygen atoms based on an orthogonally protected common precursor is described. Racemic 16-F1t-, 16-E1-PhytoP and their C-16 epimers, which also occur as racemates in Nature, were successfully obtained. The first total synthesis of very sensitive 16-D1t-PhytoP succeeded, however, it quickly isomerized to more stable, but so far also unknown Δ13-16-D1t-PhytoP, which may serve as a more reliable biomarker for D-type PhytoP. The dioxygenated cyclopentane ring carrying the ω-chain with the oxygen functionality in the 16-position was approached by a radical oxidative cyclization mediated by ferrocenium hexafluorophosphate and TEMPO. The α-chain was introduced by a new copper-catalyzed alkyl-alkyl coupling of a 6-heptenyl Grignard reagent with a functionalized cyclopentylmethyl triflate.
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Affiliation(s)
- Jakub Smrček
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo náměstí 2, 16610 Prague 6, Czech Republic.
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13
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Kobayashi Y. Allylic Substitution of Allylic Picolinates with Various Copper Reagents and Synthetic Applications. J SYN ORG CHEM JPN 2017. [DOI: 10.5059/yukigoseikyokaishi.75.14] [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)
- Yuichi Kobayashi
- School of Life Science and Technology, Tokyo Institute of Technology
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14
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Peshkov RY, Wang C, Panteleeva EV, Tretyakov EV, Shteingarts VD. Synthesis of 4-(ω-X-alkyl)benzonitriles (X = 1,3-dioxan-2-yl, CN, CO2Et) by the reaction of terephthalonitrile dianion with ω-X-alkyl bromides in liquid ammonia. Russ Chem Bull 2016. [DOI: 10.1007/s11172-016-1602-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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16
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Jeong EJ, Lee ISH. Effects of Substituents on NMR Chemical Shifts and Mass Fragmentation Patterns of 1-Aryl-3-phenylpropanes. B KOREAN CHEM SOC 2016. [DOI: 10.1002/bkcs.10720] [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)
- Eun Jeong Jeong
- Department of Science Education; Kangwon National University; Chuncheon 24341 South Korea
| | - In-Sook Han Lee
- Department of Science Education; Kangwon National University; Chuncheon 24341 South Korea
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Ramesh P, Raju A, Fadnavis NW. An Efficient Stereoselective Total Synthesis of Bioactive (3R,5R)-1-(4-Hydroxyphenyl)-7-phenylheptane-3,5-diolviaAsymmetric Aldol Reaction. Helv Chim Acta 2016. [DOI: 10.1002/hlca.201500189] [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]
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18
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Copper-catalyzed cross-coupling of 1-haloalkyl -o- carboranes with Grignard reagents: an efficient route to monosubstituted o- carborane derivatives. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.11.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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Arigala P, Sadu VS, Hwang IT, Hwang JS, Kim CU, Lee KI. Copper-Catalyzed Regio- and Stereoselective Ring-Opening of Cyclic Sulfamidates with Grignard Reagents assisted by Lithium Chloride. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201400850] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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