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Liu D, Zhang Y, Niu D. Preparing glycosyl benzothiazoles from 2-isocyanoaryl thioethers and glycosyl radicals under thermal conditions. Chem Commun (Camb) 2024; 60:5498-5501. [PMID: 38696183 DOI: 10.1039/d4cc00648h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Herein, we report a method for preparing glycosyl benzothiazoles via radical cascade cyclization, in which glycosyl radicals are generated from readily available and bench-stable allyl glycosyl sulfones. This cascade reaction proceeds under simple conditions and tolerates a broad substrate scope in high yield with excellent stereoselectivity. Mechanistic studies support that the reactions proceed via the intermediacy of imidoyl radicals, which attack the appended sulfide unit by a SH2 process to forge the thiazole ring.
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Affiliation(s)
- Daqi Liu
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering, Sichuan University, Chengdu 610041, China.
| | - Yang Zhang
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering, Sichuan University, Chengdu 610041, China.
| | - Dawen Niu
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering, Sichuan University, Chengdu 610041, China.
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2
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Xu S, Zhang W, Li C, Li Y, Zeng H, Wang Y, Zhang Y, Niu D. Generation and Use of Glycosyl Radicals under Acidic Conditions: Glycosyl Sulfinates as Precursors. Angew Chem Int Ed Engl 2023; 62:e202218303. [PMID: 36760072 DOI: 10.1002/anie.202218303] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 02/06/2023] [Accepted: 02/07/2023] [Indexed: 02/11/2023]
Abstract
We herein report a method that enables the generation of glycosyl radicals under highly acidic conditions. Key to the success is the design and use of glycosyl sulfinates as radical precursors, which are bench-stable solids and can be readily prepared from commercial starting materials. This development allows the installation of glycosyl units onto pyridine rings directly by the Minisci reaction. We further demonstrate the utility of this method in the late-stage modification of complex drug molecules, including the anticancer agent camptothecin. Experimental studies provide insight into the reaction mechanism.
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Affiliation(s)
- Shiyang Xu
- Department of Emergency, State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering, Sichuan University, No. 17 Renmin Nan Road, Chengdu, 610041, China
| | - Wei Zhang
- Department of Emergency, State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering, Sichuan University, No. 17 Renmin Nan Road, Chengdu, 610041, China
| | - Caiyi Li
- Department of Emergency, State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering, Sichuan University, No. 17 Renmin Nan Road, Chengdu, 610041, China
| | - Yanjing Li
- Department of Emergency, State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering, Sichuan University, No. 17 Renmin Nan Road, Chengdu, 610041, China
| | - Hongxin Zeng
- Department of Emergency, State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering, Sichuan University, No. 17 Renmin Nan Road, Chengdu, 610041, China
| | - Yingwei Wang
- Laboratory of Clinical Nuclear Medicine, Department of Nuclear Medicine, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Yang Zhang
- Department of Emergency, State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering, Sichuan University, No. 17 Renmin Nan Road, Chengdu, 610041, China
| | - Dawen Niu
- Department of Emergency, State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering, Sichuan University, No. 17 Renmin Nan Road, Chengdu, 610041, China
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3
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Ghosh T, Nokami T. Recent development of stereoselective C-glycosylation via generation of glycosyl radical. Carbohydr Res 2022; 522:108677. [DOI: 10.1016/j.carres.2022.108677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 08/31/2022] [Accepted: 09/07/2022] [Indexed: 11/27/2022]
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4
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Shang W, Su SN, Shi R, Mou ZD, Yu GQ, Zhang X, Niu D. Generation of Glycosyl Radicals from Glycosyl Sulfoxides and Its Use in the Synthesis of C-linked Glycoconjugates. Angew Chem Int Ed Engl 2020; 60:385-390. [PMID: 32935426 DOI: 10.1002/anie.202009828] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/08/2020] [Indexed: 02/05/2023]
Abstract
We here report glycosyl sulfoxides appended with an aryl iodide moiety as readily available, air and moisture stable precursors to glycosyl radicals. These glycosyl sulfoxides could be converted to glycosyl radicals by way of a rapid and efficient intramolecular radical substitution event. The use of this type of precursors enabled the synthesis of various complex C-linked glycoconjugates under mild conditions. This reaction could be performed in aqueous media and is amenable to the synthesis of glycopeptidomimetics and carbohydrate-DNA conjugates.
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Affiliation(s)
- Weidong Shang
- Department of Emergency, State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering, Sichuan University, No. 17 Renmin Nan Road, Chengdu, 610041, China
| | - Sheng-Nan Su
- Department of Emergency, State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering, Sichuan University, No. 17 Renmin Nan Road, Chengdu, 610041, China
| | - Rong Shi
- Department of Emergency, State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering, Sichuan University, No. 17 Renmin Nan Road, Chengdu, 610041, China
| | - Ze-Dong Mou
- Department of Emergency, State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering, Sichuan University, No. 17 Renmin Nan Road, Chengdu, 610041, China
| | - Guo-Qiang Yu
- Discovery Chemistry Unit, HitGen Inc., Building 6, No. Huigu 1st East Road, Tianfu International Bio-Town, Shuangliu District, Chengdu, 610200, China
| | - Xia Zhang
- Department of Emergency, State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering, Sichuan University, No. 17 Renmin Nan Road, Chengdu, 610041, China
| | - Dawen Niu
- Department of Emergency, State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering, Sichuan University, No. 17 Renmin Nan Road, Chengdu, 610041, China
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5
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Shang W, Su S, Shi R, Mou Z, Yu G, Zhang X, Niu D. Generation of Glycosyl Radicals from Glycosyl Sulfoxides and Its Use in the Synthesis of
C
‐linked Glycoconjugates. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009828] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Weidong Shang
- Department of Emergency State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering Sichuan University No. 17 Renmin Nan Road Chengdu 610041 China
| | - Sheng‐Nan Su
- Department of Emergency State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering Sichuan University No. 17 Renmin Nan Road Chengdu 610041 China
| | - Rong Shi
- Department of Emergency State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering Sichuan University No. 17 Renmin Nan Road Chengdu 610041 China
| | - Ze‐Dong Mou
- Department of Emergency State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering Sichuan University No. 17 Renmin Nan Road Chengdu 610041 China
| | - Guo‐Qiang Yu
- Discovery Chemistry Unit HitGen Inc. Building 6, No. Huigu 1st East Road, Tianfu International Bio-Town, Shuangliu District Chengdu 610200 China
| | - Xia Zhang
- Department of Emergency State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering Sichuan University No. 17 Renmin Nan Road Chengdu 610041 China
| | - Dawen Niu
- Department of Emergency State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering Sichuan University No. 17 Renmin Nan Road Chengdu 610041 China
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6
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Xu LY, Fan NL, Hu XG. Recent development in the synthesis of C-glycosides involving glycosyl radicals. Org Biomol Chem 2020; 18:5095-5109. [DOI: 10.1039/d0ob00711k] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
C-Glycosylation involving glycosyl radical intermediates is a particularly effective approach to access C-glycosides, which are core units of a great number of natural products, bioactive compounds and marketed drugs.
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Affiliation(s)
- Lin-Yi Xu
- National Engineering Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang
- China
- Key Laboratory of Small Functional Organic Molecule
| | - Nai-Li Fan
- National Engineering Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang
- China
| | - Xiang-Guo Hu
- National Engineering Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang
- China
- Key Laboratory of Small Functional Organic Molecule
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7
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Burckle AJ, Gál B, Seidl FJ, Vasilev VH, Burns NZ. Enantiospecific Solvolytic Functionalization of Bromochlorides. J Am Chem Soc 2017; 139:13562-13569. [PMID: 28858493 PMCID: PMC5987033 DOI: 10.1021/jacs.7b07792] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Herein, we report that under mild solvolytic conditions, enantioenriched bromochlorides can be ionized, stereospecifically cyclized to an array of complex bromocyclic scaffolds, or intermolecularly trapped by exogenous nucleophiles. Mechanistic investigations support an ionic mechanism wherein the bromochloride serves as an enantioenriched bromonium surrogate. Several natural product-relevant motifs are accessed in enantioenriched form for the first time with high levels of stereocontrol, and this technology is applied to the scalable synthesis of a polycyclic brominated natural product. Arrays of nucleophiles including olefins, alkynes, heterocycles, and epoxides are competent traps in the bromonium-induced cyclizations, leading to the formation of enantioenriched mono-, bi-, and tricyclic products. This strategy is further amenable to intermolecular coupling between cinnamyl bromochlorides and a diverse set of commercially available nucleophiles. Collectively, this work demonstrates that enantioenriched bromonium chlorides are configurationally stable under solvolytic conditions in the presence of a variety of functional groups.
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Affiliation(s)
- Alexander J. Burckle
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Bálint Gál
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Frederick J. Seidl
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Vasil H. Vasilev
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Noah Z. Burns
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
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8
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Affiliation(s)
- You Yang
- Shanghai
Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Biao Yu
- State
Key Laboratory of Bio-organic and Natural Products Chemistry, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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9
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Streuff J, Gansäuer A. Metal-Catalyzed β-Functionalization of Michael Acceptors through Reductive Radical Addition Reactions. Angew Chem Int Ed Engl 2015; 54:14232-42. [PMID: 26471460 DOI: 10.1002/anie.201505231] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Indexed: 01/18/2023]
Abstract
Transition-metal-catalyzed radical reactions are becoming increasingly important in modern organic chemistry. They offer fascinating and unconventional ways for connecting molecular fragments that are often complementary to traditional methods. In particular, reductive radical additions to α,β-unsaturated compounds have recently gained substantial attention as a result of their broad applicability in organic synthesis. This Minireview critically discusses the recent landmark achievements in this field in context with earlier reports that laid the foundation for today's developments.
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Affiliation(s)
- Jan Streuff
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, 79104 Freiburg (Germany).
| | - Andreas Gansäuer
- Kekulé-Institut für Organische Chemie und Biochemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn (Germany).
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10
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Streuff J, Gansäuer A. Metallkatalysierte β-Funktionalisierung von Michael-Akzeptoren über reduktive Radikaladditionen. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505231] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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11
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Levinson AM, Milner PJ, Snyder SA. Studies in selective 6-membered bromoether formation via bromonium and thiiranium-induced cyclizations. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.02.065] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Chenneberg L, Baralle A, Daniel M, Fensterbank L, Goddard JP, Ollivier C. Visible Light Photocatalytic Reduction ofO-Thiocarbamates: Development of a Tin-Free Barton-McCombie Deoxygenation Reaction. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400729] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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13
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Morcillo SP, Miguel D, Campaña AG, Álvarez de Cienfuegos L, Justicia J, Cuerva JM. Recent applications of Cp2TiCl in natural product synthesis. Org Chem Front 2014. [DOI: 10.1039/c3qo00024a] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Titanocene(iii)-based approaches have been demonstrated to be useful in the straightforward syntheses of many natural products from readily available starting materials.
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Affiliation(s)
- Sara P. Morcillo
- Department of Organic Chemistry
- University of Granada
- Granada 18071, Spain
| | - Delia Miguel
- Department of Organic Chemistry
- University of Granada
- Granada 18071, Spain
| | - Araceli G. Campaña
- Department of Organic Chemistry
- University of Granada
- Granada 18071, Spain
| | | | - José Justicia
- Department of Organic Chemistry
- University of Granada
- Granada 18071, Spain
| | - Juan M. Cuerva
- Department of Organic Chemistry
- University of Granada
- Granada 18071, Spain
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14
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Samala R, Gurram V, Patro B, Pottabathini N, Mukkanti K. Concise Total Synthesis of (−)-Erinapyrone B from D-(+)-Malic Acid. SYNTHETIC COMMUN 2013. [DOI: 10.1080/00397911.2013.817017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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16
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Mahdi F, Falkenberg M, Ioannou E, Roussis V, Zhou YD, Nagle DG. Thyrsiferol Inhibits Mitochondrial Respiration and HIF-1 Activation. PHYTOCHEMISTRY LETTERS 2011; 4:75-78. [PMID: 21785662 PMCID: PMC3139250 DOI: 10.1016/j.phytol.2010.09.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The cytotoxic marine red algal metabolite thyrsiferol (1) was found to inhibit hypoxia-induced hypoxia-inducible factor-1 (HIF-1) activation in T47D human breast tumor cells (66% inhibition at 3 μM). Compound 1 also suppressed hypoxic induction of HIF-1 target genes (VEGF, GLUT-1) at the mRNA level, and displayed tumor cell line-selective time-dependent inhibition of cell viability/proliferation. Mechanistic studies revealed that 1 selectively suppressed mitochondrial respiration at Complex I (IC(50) 3 μM). Thyrsiferol represents a prototypical, structurally unique electron transport chain inhibitor. The apparent rotenone-like activity may contribute to the observed cytotoxicity of 1 and play an important role in Laurencia chemical defense.
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Affiliation(s)
- Fakhri Mahdi
- Department of Pharmacognosy, School of Pharmacy, University of Mississippi, University, MS 38677, United States
| | - Miriam Falkenberg
- Department of Pharmacognosy and Chemistry of Natural Products, School of Pharmacy, University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece
- Programa de Pós-graduação em Farmácia, Universidade Federal de Santa Catarina, Campus Trindade, 88040-970 Florianópolis, Brazil
| | - Efstathia Ioannou
- Department of Pharmacognosy and Chemistry of Natural Products, School of Pharmacy, University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece
| | - Vassilios Roussis
- Department of Pharmacognosy and Chemistry of Natural Products, School of Pharmacy, University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece
| | - Yu-Dong Zhou
- Department of Pharmacognosy, School of Pharmacy, University of Mississippi, University, MS 38677, United States
| | - Dale G. Nagle
- Department of Pharmacognosy, School of Pharmacy, University of Mississippi, University, MS 38677, United States
- Research Institute of Pharmaceutical Sciences, University of Mississippi, University, MS 38677, United States
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17
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Staubitz A, Robertson APM, Sloan ME, Manners I. Amine− and Phosphine−Borane Adducts: New Interest in Old Molecules. Chem Rev 2010; 110:4023-78. [DOI: 10.1021/cr100105a] [Citation(s) in RCA: 554] [Impact Index Per Article: 39.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Anne Staubitz
- School of Chemistry, University of Bristol, Bristol, U.K., BS8 1TS
| | | | - Matthew E. Sloan
- School of Chemistry, University of Bristol, Bristol, U.K., BS8 1TS
| | - Ian Manners
- School of Chemistry, University of Bristol, Bristol, U.K., BS8 1TS
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18
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19
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Synthetic Efforts Toward, and Biological Activity of, Thyrsiferol and Structurally-Related Analogues. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/s1572-5995(08)80003-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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20
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Valiulin RA, Halliburton LM, Kutateladze AG. Interrupted oligomerization revisited: simple and efficient one-pot multicomponent approach to versatile synthetic intermediates. Org Lett 2007; 9:4061-3. [PMID: 17727292 DOI: 10.1021/ol701847b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel multicomponent reaction allowing for a one-pot formation of three carbon-carbon bonds has been developed. It is based on in situ generation and anionic dimerization of methylenedithiane and produces a versatile synthetic equivalent of 4-hydroxy-1,3-alkanediones which, among other things, offers expeditious one-pot access to 3(2H)-furanones.
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Affiliation(s)
- Roman A Valiulin
- Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80208, USA
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Nishiguchi GA, Graham J, Bouraoui A, Jacobs RS, Little RD. 7,11-epi-thyrsiferol: completion of its synthesis, evaluation of its antimitotic properties, and the further development of an SAR model. J Org Chem 2007; 71:5936-41. [PMID: 16872175 DOI: 10.1021/jo060519z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We (a) describe the completion of a total synthesis of 7,11-epi-thyrsiferol (4), (b) compare the antimitotic activities of thyrsiferol (2), Delta15,28-dehydrothyrsiferol (3), and 7,11-epi-thyrsiferol (4), (c) evaluate the synergistic behavior of the title compound and colchicine to inhibit cell proliferation, and (d) describe the results of conformational searches that provide additional insight concerning the SAR profile of the thyrsiferol family of natural products.
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Affiliation(s)
- Gisele A Nishiguchi
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106, USA
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22
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Gansäuer A, Justicia J, Fan CA, Worgull D, Piestert F. Reductive C–C Bond Formation after Epoxide Opening via Electron Transfer. Top Curr Chem (Cham) 2007. [DOI: 10.1007/128_2007_130] [Citation(s) in RCA: 122] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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