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Xiao X, Lu YJ, Tian HY, Zhou HJ, Li JW, Yao YP, Ke M, Chen FE. Organocatalytic atroposelective N-alkylation: divergent synthesis of axially chiral sulfonamides and biaryl amino phenols. Org Chem Front 2022. [DOI: 10.1039/d2qo00219a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Axial chirality exists ubiquitously in numerous natural products and has been extensively recognized for decades in pharmaceuticals and enantioselective transformations. The development of efficient methodologies to obtain enantiopure structures bearing...
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Zi Y, Lange M, Vilotijevic I. Enantioselective Lewis base catalyzed phosphonyldifluoromethylation of allylic fluorides using a C-silyl latent pronucleophile. Chem Commun (Camb) 2020; 56:5689-5692. [DOI: 10.1039/d0cc01815e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The first enantioselective phosphonyldifluoromethylation is enabled by the use of a latent silylated C-centered pronucleophile in the Lewis base catalyzed substitution of allylic fluorides.
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Affiliation(s)
- You Zi
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
| | - Markus Lange
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
| | - Ivan Vilotijevic
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
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Boratyński PJ, Zielińska-Błajet M, Skarżewski J. Cinchona Alkaloids-Derivatives and Applications. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2019; 82:29-145. [PMID: 30850032 DOI: 10.1016/bs.alkal.2018.11.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Major Cinchona alkaloids quinine, quinidine, cinchonine, and cinchonidine are available chiral natural compounds (chiral pool). Unlike many other natural products, these alkaloids are available in multiple diastereomeric forms which are separated on an industrial scale. The introduction discusses in short conformational equilibria, traditional separation scheme, biosynthesis, and de novo chemical syntheses. The second section concerns useful chemical applications of the alkaloids as chiral recognition agents and effective chiral catalysts. Besides the Sharpless ethers and quaternary ammonium salts (chiral PTC), the most successful bifunctional organocatalysts are based on 9-amino derivatives: thioureas and squaramides. The third section reports the main transformations of Cinchona alkaloids. This covers reactions of the 9-hydroxyl group with the retention or inversion of configuration. Specific Cinchona rearrangements enlarging [2.2.2]bicycle of quinuclidine to [3.2.2] products are connected to the 9-OH substitution. The syntheses of numerous esterification and etherification products are described, including many examples of bi-Cinchona alkaloid ethers. Further derivatives comprise 9-N-substituted compounds. The amino group is introduced via an azido function with the inversion of configuration at the stereogenic center C9. The 9-epi-amino-alkaloids provide imines, amides, imides, thioureas, and squaramides. The syntheses of 9-carbon-, 9-sulfur-, and 9-selenium-substituted derivatives are discussed. Oxidation of the hydroxyl group of any alkaloid gives ketones, which can be selectively reduced, reacted with Grignard reagents, or subjected to the Corey-Chaykovsky reaction. The alkaloids were also partially degraded by splitting C4'-C9 or N1-C8 bonds. In order to immobilize Cinchona alkaloids the transformations of the 3-vinyl group were often exploited. Finally, miscellaneous functionalizations of quinuclidine, quinoline, and examples of various metal complexes of the alkaloids are considered.
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Affiliation(s)
| | | | - Jacek Skarżewski
- Department of Organic Chemistry, Wrocław University of Technology, Wrocław, Poland.
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Dočekal V, Šimek M, Dračínský M, Veselý J. Decarboxylative Organocatalytic Allylic Amination of Morita-Baylis-Hillman Carbamates. Chemistry 2018; 24:13441-13445. [DOI: 10.1002/chem.201803677] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Indexed: 01/03/2023]
Affiliation(s)
- Vojtěch Dočekal
- Department of Organic Chemistry; Charles University; Hlavova 8 12843 Prague Czech Republic
| | - Michal Šimek
- Department of Organic Chemistry; Charles University; Hlavova 8 12843 Prague Czech Republic
| | - Martin Dračínský
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nám. 2 16610 Prague Czech Republic
| | - Jan Veselý
- Department of Organic Chemistry; Charles University; Hlavova 8 12843 Prague Czech Republic
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Ma H, Sui F, Zhao QH, Zhang N, Sun Y, Xian J, Jiao MJ, Liu YL, Wang ZM. Lewis base-catalyzed cyanation of Morita-Baylis-Hillman carbonates. Synthesis of allylamine derivatives. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.07.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Raji Reddy C, Ranjan R, Prajapti SK, Warudikar K. One-Pot Consecutive Sulfonamidation/ipso-Cyclization Strategy for the Construction of Azaspirocyclohexadienones. J Org Chem 2017. [PMID: 28621132 DOI: 10.1021/acs.joc.7b01285] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Harnessing of Morita-Baylis-Hillman (MBH) carbonates of acetylenic aldehydes as handy synthons has allowed a facile synthesis of azaspirocyclohexadienones by sequential DABCO-promoted sulfonamidation/ICl-mediated ipso-iodocyclization reactions. A variety of MBH-carbonates having aryl or heteroaryl groups on the alkyne functionality fruitfully participated in the one-pot ipso-annulation reaction to provide the corresponding 3-iodo spirocyclohexadienones. The sulphonamide functionality was further utilized to construct the tricyclic fused-sultam framework.
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Affiliation(s)
- Chada Raji Reddy
- Division of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology , Hyderabad 500007, India.,Academy of Scientific and Innovative Research , New Delhi 600113, India
| | - Ravi Ranjan
- Division of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology , Hyderabad 500007, India.,Academy of Scientific and Innovative Research , New Delhi 600113, India
| | - Santosh Kumar Prajapti
- Division of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology , Hyderabad 500007, India
| | - Kamalkishor Warudikar
- Division of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology , Hyderabad 500007, India.,Academy of Scientific and Innovative Research , New Delhi 600113, India
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Pellissier H. Recent developments in the asymmetric organocatalytic Morita−Baylis−Hillman reaction. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.04.008] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Du F, Yin L, Ning Y, Peng Y. Catalytic Asymmetric Synthesis of Phosphoryl-1,4-dihydropyridazinesviaan Enantioselective Allylic Alkylation/1,3-Dipolar Cycloaddition/Rearrangement Reaction Sequence. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600353] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Zhang CB, Zhang J, Hu WQ, Cui YS, Liu Y, Fu JY, Ding T. Regioselective addition–elimination of Morita–Baylis–Hillman adducts with 2-naphthol or phenol catalyzed by functionalized ionic liquids: a direct strategy to construct functional alkenes. CAN J CHEM 2016. [DOI: 10.1139/cjc-2015-0358] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A highly regioselective addition–elimination of Morita–Baylis–Hillman adducts promoted by base ionic liquids (0.5 mol%) was reported to afford a variety of functional alkenes in excellent yields (up to 99%). This protocol provides a new method to access functional alkenes directly. Recycled base ionic liquids could be reused at least five times and the isolated yield of the product was almost consistent after five runs.
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Affiliation(s)
- Chuan-Bao Zhang
- College of Chemistry and Chemical Engineering, Henan University, Institute of Fine Chemistry and Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, Kaifeng, Henan 475004, P. R. China
- College of Chemistry and Chemical Engineering, Henan University, Institute of Fine Chemistry and Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, Kaifeng, Henan 475004, P. R. China
| | - Jun Zhang
- College of Chemistry and Chemical Engineering, Henan University, Institute of Fine Chemistry and Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, Kaifeng, Henan 475004, P. R. China
- College of Chemistry and Chemical Engineering, Henan University, Institute of Fine Chemistry and Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, Kaifeng, Henan 475004, P. R. China
| | - Wei-Qiang Hu
- College of Chemistry and Chemical Engineering, Henan University, Institute of Fine Chemistry and Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, Kaifeng, Henan 475004, P. R. China
- College of Chemistry and Chemical Engineering, Henan University, Institute of Fine Chemistry and Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, Kaifeng, Henan 475004, P. R. China
| | - Yan-Su Cui
- College of Chemistry and Chemical Engineering, Henan University, Institute of Fine Chemistry and Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, Kaifeng, Henan 475004, P. R. China
- College of Chemistry and Chemical Engineering, Henan University, Institute of Fine Chemistry and Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, Kaifeng, Henan 475004, P. R. China
| | - Yong Liu
- College of Chemistry and Chemical Engineering, Henan University, Institute of Fine Chemistry and Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, Kaifeng, Henan 475004, P. R. China
- College of Chemistry and Chemical Engineering, Henan University, Institute of Fine Chemistry and Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, Kaifeng, Henan 475004, P. R. China
| | - Ji-Ya Fu
- College of Chemistry and Chemical Engineering, Henan University, Institute of Fine Chemistry and Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, Kaifeng, Henan 475004, P. R. China
- College of Chemistry and Chemical Engineering, Henan University, Institute of Fine Chemistry and Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, Kaifeng, Henan 475004, P. R. China
| | - Tao Ding
- College of Chemistry and Chemical Engineering, Henan University, Institute of Fine Chemistry and Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, Kaifeng, Henan 475004, P. R. China
- College of Chemistry and Chemical Engineering, Henan University, Institute of Fine Chemistry and Engineering, Henan Engineering Laboratory of Flame-Retardant and Functional Materials, Kaifeng, Henan 475004, P. R. China
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Ni X, Li X, Cheng JP. Equilibrium acidities of cinchona alkaloid organocatalysts bearing 6′-hydrogen bonding donors in DMSO. Org Chem Front 2016. [DOI: 10.1039/c5qo00305a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The pKa values of 18 cinchona alkaloid based organocatalysts bearing 6′-hydrogen bonding donors were determined by the overlapping indicator method in DMSO via UV spectrophotometric titrations. The pKa values are in the range of 6.76–20.24.
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Affiliation(s)
- Xiang Ni
- State Key Laboratory of Elemento-Organic Chemistry
- Department of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Xin Li
- State Key Laboratory of Elemento-Organic Chemistry
- Department of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Jin-Pei Cheng
- Collaborative Innovation Center of Chemical Science and Engineering
- Tianjin 300071
- China
- Center of Basic Molecular Science
- Department of Chemistry
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Zhao X, Kang T, Shen J, Sha F, Wu X. Enantioselective Allylic Amination of Morita-Baylis-Hillman Acetates Catalyzed by Chiral Thiourea-Phosphine. CHINESE J CHEM 2015. [DOI: 10.1002/cjoc.201500697] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Yao L, Wang CJ. AsymmetricN-Allylic Alkylation of Hydrazones with Morita-Baylis-Hillman Carbonates. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400790] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Wei Y, Shi M. Recent advances in organocatalytic asymmetric Morita-Baylis-Hillman/aza-Morita-Baylis-Hillman reactions. Chem Rev 2013; 113:6659-90. [PMID: 23679920 DOI: 10.1021/cr300192h] [Citation(s) in RCA: 568] [Impact Index Per Article: 51.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yin Wei
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
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Nakada M, Tomizawa T, Namera Y, Orimoto K, Oyama H, Niwa T. PREPARATION OF IMIDES vIA THE PALLADIUM-CATALYZED COUPLING REACTION OF ORGANOSTANNANES WITH METHYL N-[METHOXY(METHYLTHIO)METHYLENE]CARBAMATE. HETEROCYCLES 2013. [DOI: 10.3987/com-13-12662] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Wang Y, Zhang T, Liu L. Enantioselective andα-Regioselective Allylic Amination of Morita-Baylis-Hillman Acetates with Simple Aromatic Amines Catalyzed by Planarly Chiral Ligand/Palladium Catalyst. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201200771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Wu JW, Li F, Zheng Y, Nie J. DABCO-mediated one-pot sequential transformation: convenient access to fluorinated 1H-pyrazol-5(4H)-ones. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.06.110] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Zhang H, Zhang SJ, Zhou QQ, Dong L, Chen YC. Organocatalytic asymmetric allylic amination of Morita-Baylis-Hillman carbonates of isatins. Beilstein J Org Chem 2012; 8:1241-5. [PMID: 23019454 PMCID: PMC3458744 DOI: 10.3762/bjoc.8.139] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Accepted: 07/09/2012] [Indexed: 11/23/2022] Open
Abstract
The investigation of a Lewis base catalyzed asymmetric allylic amination of Morita–Baylis–Hillman carbonates derived from isatins afforded an electrophilic pathway to access multifunctional oxindoles bearing a C3-quaternary stereocenter, provided with good to excellent enantioselectivity (up to 94% ee) and in high yields (up to 97%).
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Affiliation(s)
- Hang Zhang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
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Zhao QY, Huang L, Wei Y, Shi M. Catalytic Asymmetric Synthesis of 2-Alkyleneoxetanes through [2+2] Annulation of Allenoates with Trifluoromethyl Ketones. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200237] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Zhao MX, Chen MX, Tang WH, Wei DK, Dai TL, Shi M. Cinchona Alkaloid Catalyzed Regio- and Enantioselective Allylic Amination of Morita-Baylis-Hillman Carbonates with Isatins. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200376] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Huang L, Wei Y, Shi M. Asymmetric substitutions of O-Boc-protected Morita–Baylis–Hillman adducts with pyrrole and indole derivatives. Org Biomol Chem 2012; 10:1396-405. [DOI: 10.1039/c1ob06671d] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Huang L, Shi M. A cascade reaction of pyrrole-2-carbaldehyde substituted Morita–Baylis–Hillman adducts in the presence of tetrabutylammonium hydroxide or acetate to construct aza-heterocycles. Chem Commun (Camb) 2012; 48:4501-3. [DOI: 10.1039/c2cc31358h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Long Huang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, and 130 MeiLong Road, Shanghai 200237, PR China
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Pei CK, Jiang Y, Shi M. Synthesis of optically active dihydropyrans from asymmetric [4 + 2] cycloaddition of β,γ-unsaturated α-ketoesters with allenic esters. Org Biomol Chem 2012; 10:4355-61. [DOI: 10.1039/c2ob25475a] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Pei CK, Shi M. Quinidine derived organocatalysts for the nucleophile promoted asymmetric [4+2] cycloaddition reaction of salicyl N-tosylimine with allenic esters. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.06.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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