1
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Zheng Q, Tang S, Xiong DC, Li Q, Ye XS. Carbocyclic Ring Closure of Aryl C-Glycosides Promoted by Fluoroboric Acid. J Org Chem 2020; 85:9339-9346. [PMID: 32567318 DOI: 10.1021/acs.joc.0c00784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel transformation from rhamnose-type C-glycosides to 2-cyclopentenones is described. With the promotion of fluoroboric acid, C-glycosides underwent ring opening and subsequent Nazarov cyclization to afford 2-cyclopentenones in good to excellent yields. The solvent and the concentration of acid are crucial to the yield of this transformation.
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Affiliation(s)
- Qiannan Zheng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Shengbiao Tang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - De-Cai Xiong
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Qin Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xin-Shan Ye
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
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2
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Ma X, Yan Q, Banwell MG, Ward JS. A Total Synthesis of the Antifungal Deoxyaminocyclitol Nabscessin B from l-(+)-Tartaric Acid. Org Lett 2017; 20:142-145. [DOI: 10.1021/acs.orglett.7b03495] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiang Ma
- Research School of Chemistry,
Institute of Advanced Studies, The Australian National University, Canberra, ACT 2601, Australia
| | - Qiao Yan
- Research School of Chemistry,
Institute of Advanced Studies, The Australian National University, Canberra, ACT 2601, Australia
| | - Martin G. Banwell
- Research School of Chemistry,
Institute of Advanced Studies, The Australian National University, Canberra, ACT 2601, Australia
| | - Jas S. Ward
- Research School of Chemistry,
Institute of Advanced Studies, The Australian National University, Canberra, ACT 2601, Australia
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3
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Giralt E, Lo Re D. The Therapeutic Potential of Migrastatin-Core Analogs for the Treatment of Metastatic Cancer. Molecules 2017; 22:molecules22020198. [PMID: 28208778 PMCID: PMC6155687 DOI: 10.3390/molecules22020198] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 01/25/2017] [Accepted: 02/02/2017] [Indexed: 01/30/2023] Open
Abstract
Tumor metastasis is a complex process in which cells detach from the primary tumor and colonize a distant organ. Metastasis is also the main process responsible for cancer-related death. Despite the enormous efforts made to unravel the metastatic process, there is no effective therapy, and patients with metastatic tumors have poor prognosis. In this regard, there is an urgent need for new therapeutic tools for the treatment of this disease. Small molecules with the capacity to reduce cell migration could be used to treat metastasis. Migrastatin-core analogs are naturally inspired macrocycles that inhibit pathological cell migration and are able to reduce metastasis in animal models. Migrastatin analogs can be synthesized from a common advanced intermediate. Herein we present a review of the synthetic approaches that can be used to prepare this key intermediate, together with a review of the biological activity of migrastatin-core analogs and current hypotheses concerning their mechanism of action.
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Affiliation(s)
- Ernest Giralt
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, C/Baldiri Reixac 10, Barcelona E-08028, Spain.
- Department of Organic Chemistry, University of Barcelona, Marti i Franques 1-11, Barcelona E-08028, Spain.
| | - Daniele Lo Re
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, C/Baldiri Reixac 10, Barcelona E-08028, Spain.
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4
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Chung CY, Angamuthu V, Li LS, Hou DR. Palladium-Catalyzed Allylic Substitution for the Synthesis of Pericosines. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600355] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Cheng-Yu Chung
- Department of Chemistry; National Central University; 300 Jhong-Da Rd Jhong-Li Taoyuan 32001 Taiwan
| | - Venkatachalam Angamuthu
- Department of Chemistry; National Central University; 300 Jhong-Da Rd Jhong-Li Taoyuan 32001 Taiwan
| | - Long-Shiang Li
- Department of Chemistry; National Central University; 300 Jhong-Da Rd Jhong-Li Taoyuan 32001 Taiwan
| | - Duen-Ren Hou
- Department of Chemistry; National Central University; 300 Jhong-Da Rd Jhong-Li Taoyuan 32001 Taiwan
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5
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Panda A, Biswas RG, Pal S. A unified and common intermediate strategy for the asymmetric total synthesis of 3-deoxy-neo-inositol and conduritol E. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.06.127] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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6
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Panda A, Das S, Pal S. Highly regio- and diastereoselective, acidic clay supported intramolecular nitrile oxide–alkene cycloaddition on d-ribose derived nitriles: an efficient synthetic route to isoxazoline fused five and six membered carbocycles. Carbohydr Res 2014; 398:13-8. [DOI: 10.1016/j.carres.2014.06.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 06/02/2014] [Accepted: 06/06/2014] [Indexed: 12/19/2022]
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7
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Ananthan B, Chang WC, Lin JS, Li PH, Yan TH. A C2-Symmetric Chiral Pool-Based Flexible Strategy: Synthesis of (+)- and (−)-Shikimic Acids, (+)- and (−)-4-epi-Shikimic Acids, and (+)- and (−)-Pinitol. J Org Chem 2014; 79:2898-905. [DOI: 10.1021/jo402764v] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Bakthavachalam Ananthan
- Department
of Chemistry, National Chung-Hsing University, Taichung 400, Taiwan, Republic of China
| | - Wan-Chun Chang
- Department
of Chemistry, National Chung-Hsing University, Taichung 400, Taiwan, Republic of China
| | - Jhe-Sain Lin
- Department
of Chemistry, National Chung-Hsing University, Taichung 400, Taiwan, Republic of China
| | - Pin-Hui Li
- Department
of Chemistry, National Chung-Hsing University, Taichung 400, Taiwan, Republic of China
| | - Tu-Hsin Yan
- Department
of Chemistry, National Chung-Hsing University, Taichung 400, Taiwan, Republic of China
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8
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Yang F, Feng L, Wang N, Liu X, Li J, Shen Y. Practical synthesis of C1–8 fragment of autolytimycin via a chelation-controlled diastereoselective addition of diisopropenylzinc to α-methoxy aldehyde. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.08.067] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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9
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Chang YK, Lo HJ, Yan TH. Efficient Synthesis of Optically Pure (+)-Bezene Diol Epoxide and (+)-Conduramine A-1. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.201000004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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10
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Lo HJ, Chen CY, Zheng WL, Yeh SM, Yan TH. A C2-Symmetric Pool Based Flexible Strategy: An Enantioconvergent Synthesis of (+)-Valiolamine and (+)-Valienamine. European J Org Chem 2012. [DOI: 10.1002/ejoc.201101845] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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11
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Wender PA, Buschmann N, Cardin NB, Jones LR, Kan C, Kee JM, Kowalski JA, Longcore KE. Gateway synthesis of daphnane congeners and their protein kinase C affinities and cell-growth activities. Nat Chem 2011; 3:615-9. [PMID: 21778981 PMCID: PMC3144521 DOI: 10.1038/nchem.1074] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2011] [Accepted: 05/18/2011] [Indexed: 11/09/2022]
Abstract
The daphnane diterpene orthoesters constitute a structurally fascinating family of natural products that exhibit a remarkable range of potent biological activities. Although partial activity information is available for some natural daphnanes, little information exists for non-natural congeners or on how changes in structure affect mode of action, function, potency or selectivity. A gateway strategy designed to provide general synthetic access to natural and non-natural daphnanes is described and utilized in the synthesis of two novel members of this class. In this study, a commercially available tartrate derivative was elaborated through a key late-stage diversification intermediate into B-ring yuanhuapin analogues to initiate exploration of the structure-function relationships of this class. Protein kinase C was identified as a cellular target for these agents, and their activity against human lung and leukaemia cell lines was evaluated. The natural product and a novel non-natural analogue exhibited significant potency, but the epimeric epoxide was essentially inactive.
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Affiliation(s)
- Paul A Wender
- Department of Chemistry, Stanford University, Stanford, California 94305, USA.
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12
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Wong LSM, Turner KA, White JM, Holmes AB, Ryan JH. Asymmetric Synthesis of a Hydroxylated Nine-membered Lactone from Tartaric Acid using the Claisen Rearrangement. Aust J Chem 2010. [DOI: 10.1071/ch09637] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The synthesis of a hydroxylated vinyl-appended lactone, in five synthetic steps from tartaric acid, is reported. The C2-symmetrical bis-vinyl diol 12 was converted into the ketene acetal 14 via methylenation of the cyclic carbonate 13 or thermal elimination of benzeneselenenic acid from the selenoxide 17. In both cases, the in situ generated ketene acetal 14 underwent spontaneous Claisen rearrangement to give the nine-membered lactone (+)-15. Lactones of this type are potentially advanced precursors to simplified eleutherobin analogues or other medium-ring lactone natural products.
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13
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Chang YK, Lo HJ, Yan TH. A flexible strategy based on a C2-symmetric pool of chiral substrates: concise synthesis of (+)-valienamine, key intermediate of (+)- pancratistatin, and conduramines A-1 and E. Org Lett 2009; 11:4278-81. [PMID: 19711969 DOI: 10.1021/ol9016194] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new strategy invoking a new application of the [3,3] sigmatropic rearrangement of allylic azides and the presence of a C(2) symmetry element within a pool of chiral substrates was evolved. Not only does this simple flexible strategy provide a concise approach to (+)-valienamine, but it also can readily be adopted for the synthesis of conduramines A-1 and E and the enantiopure azido carbonate 4, a key intermediate of (+)-pancratistatin.
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Affiliation(s)
- Yuan-Kang Chang
- Department of Chemistry, National Chung-Hsing University, Taichung 400, Taiwan, Republic of China
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14
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Wang Y, Gang S, Bierstedt A, Gruner M, Fröhlich R, Metz P. A Symmetry-Based Approach to the Heterobicyclic Core of the Zaragozic Acids – Model Studies in the PseudoC2-Symmetric Series. Adv Synth Catal 2007. [DOI: 10.1002/adsc.200700122] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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Madsen R. Synthetic Strategies for Converting Carbohydrates into Carbocycles by the Use of Olefin Metathesis. European J Org Chem 2007. [DOI: 10.1002/ejoc.200600614] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Robert Madsen
- Center for Sustainable and Green Chemistry, Department of Chemistry, Building 201, Technical University of Denmark, 2800 Lyngby, Denmark, Fax: +45‐4593‐3968
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16
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Lauterwasser F, Gall J, Höfener S, Bräse S. Second-Generation N,O-[2.2]Paracyclophane Ketimine Ligands for the Alkenylzinc Addition to Aliphatic and Aromatic Aldehydes: Scope and Limitations. Adv Synth Catal 2006. [DOI: 10.1002/adsc.200606193] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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17
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Abstract
[reaction: see text] A new synthesis of (+)-cyclophellitol, a potent beta-glucosidase inhibitor, has been completed in nine steps from D-xylose. The key transformations involve a zinc-mediated fragmentation of benzyl-protected methyl 5-deoxy-5-iodo-xylofuranoside followed by a highly diastereoselective indium-mediated coupling with ethyl 4-bromocrotonate. Subsequent ring-closing olefin metathesis, ester reduction, olefin epoxidation, and deprotection then afford the natural product. This constitutes the shortest synthesis of (+)-cyclophellitol reported to date.
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Affiliation(s)
- Flemming Gundorph Hansen
- Center for Sustainable and Green Chemistry, Building 201, Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark
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18
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Lee YJ, Lee K, Jung SI, Jeon HB, Kim KS. Synthesis of enantiopure cyclitols from (±)-3-bromocyclohexene mediated by intramolecular oxyselenenylation employing (S,S)-hydrobenzoin and (S)-mandelic acid as chiral sources. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.01.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Abstract
A short synthetic strategy for preparation of the conduritols is described. The key step employs a zinc-mediated fragmentation of protected methyl 5-deoxy-5-iodo-d-pentofuranosides followed by an allylation of the intermediate aldehyde in the same pot. The allylation is performed with 3-bromopropenyl benzoate and occurs with good diastereoselectivity. An amino group can be introduced in the product by trapping the intermediate aldehyde as the imine prior to the allylation. The functionalised 1,7-octadienes, thus obtained, are converted into protected conduritols by ring-closing olefin metathesis.
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Affiliation(s)
- Lise Keinicke
- Center for Sustainable and Green Chemistry, Department of Chemistry, Building 201, Technical University of Denmark, DK-2800, Lyngby, Denmark
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20
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21
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Verhelst SH, Wennekes T, van der Marel GA, Overkleeft HS, van Boeckel CA, van Boom JH. Synthesis of orthogonally protected 2-deoxystreptamine stereoisomers. Tetrahedron 2004. [DOI: 10.1016/j.tet.2004.01.063] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Abstract
The first total synthesis of (+)-migrastatin, a macrolide natural product with interesting antimetastatic properties, has been accomplished. Our concise and flexible approach utilizes a Lewis acid-catalyzed diene aldehyde condensation to install the three contiguous stereocenters and the trisubstituted (Z)-alkene of migrastatin. Construction of the two remaining stereocenters and incorporation of the glutarimide-containing side chain have been achieved via an anti-selective aldol reaction, followed by a Horner-Wadsworth-Emmons olefination. Finally, the assembly of the macrocycle has been realized by a highly (E)-selective ring-closing metathesis.
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Affiliation(s)
- Christoph Gaul
- Laboratory for Bioorganic Chemistry, Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10021, USA
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23
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Heo JN, Holson EB, Roush WR. Common-intermediate strategy for synthesis of conduritols and inositols via beta-hydroxy cyclohexenylsilanes. Org Lett 2003; 5:1697-700. [PMID: 12735755 DOI: 10.1021/ol034349d] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] Syntheses of conduritols B-D and F and d-(+)-chiro- and neo-inositols from cyclohexenylsilane intermediates are described. The key cyclohexylsilane intermediates 5 and 14 were synthesized by stereoselective olefin dihydroxylation of the corresponding cyclohexenylsilanes. Selective Peterson elimination reactions and Fleming-Tamao oxidations of 5 and 14 then delivered the targeted cyclitol derivatives.
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Affiliation(s)
- Jung-Nyoung Heo
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, USA
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Cerè V, Pollicino S, Ricci A. New synthetic approach to enantiopure bicyclic sulfonium salts: swainsonine analogues. J Org Chem 2003; 68:3311-4. [PMID: 12688809 DOI: 10.1021/jo020511z] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The enantioselective synthesis of bicyclic sulfonium salts 8 or 9, thioanalogues of swainsonine derivatives, is described. The synthetic strategy is based on a stereo- and regiospecific transannular cyclization reaction of nine-membered cyclic sulfides, mediated by Me(3)SiI or carried out under acidic catalysis.
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Affiliation(s)
- Vanda Cerè
- Department of Organic Chemistry, A. Mangini University of Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy.
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25
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Poulsen CS, Madsen R. Carbohydrate carbocyclization by a zinc-mediated tandem reaction and ring-closing enyne metathesis. J Org Chem 2002; 67:4441-9. [PMID: 12076140 DOI: 10.1021/jo0200062] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Methyl 5-deoxy-5-iodo-pentofuranosides are reductively ring-opened and propargylated in a tandem fashion in the presence of zinc. The 1,7-enynes thus obtained are subjected to ring-closing enyne metathesis with catalyst B to produce functionalized 1-vinyl cyclohexenes. By adding BnNH(2) to the tandem reaction, an amino group can be introduced in the 1,7-enyne products. Addition of 2-TMS-ethynylcerium(III) chloride after the reductive ring-opening produces the corresponding 1,6-enynes. Further annulation of the product 1,3-dienes can be achieved through a Diels-Alder reaction with good control of stereochemistry. These procedures constitute efficient methods for rapid carbocyclization and annulation of carbohydrates to produce a variety of functionalized five- and six-membered ring systems.
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Affiliation(s)
- Carina Storm Poulsen
- Department of Chemistry, Building 201, Technical University of Denmark, DK-2800 Lyngby, Denmark
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26
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de Sousa SE, O'Brien P, Pilgram CD. Optimisation of enantioselectivity for the chiral base-mediated rearrangement of bis-protected meso-4,5-dihydroxycyclohexene oxides: asymmetric synthesis of 4-deoxyconduritols and conduritol F. Tetrahedron 2002. [DOI: 10.1016/s0040-4020(02)00370-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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27
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Nishikawa A, Saito S, Hashimoto Y, Koga K, Shirai R. Synthesis of l-α-phosphatidyl-d-myo-inositol 3,5-bisphosphate from d-glucose. Tetrahedron Lett 2001. [DOI: 10.1016/s0040-4039(01)01946-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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28
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de Sousa SE, O'Brien P, Pilgram CD. Chiral base route to cyclic polyols: asymmetric synthesis of aminodeoxyconduritols and conduritol F. Tetrahedron Lett 2001. [DOI: 10.1016/s0040-4039(01)01706-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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