1
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Kobayakawa T, Tsuji K, Tamamura H. Design, synthesis and evaluation of bioactivity of peptidomimetics based on chloroalkene dipeptide isosteres. Bioorg Med Chem 2024; 110:117811. [PMID: 38959684 DOI: 10.1016/j.bmc.2024.117811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Revised: 06/12/2024] [Accepted: 06/14/2024] [Indexed: 07/05/2024]
Abstract
Ample biologically active peptides have been found, identified and modified for use in drug discovery to date. However, several factors, such as low metabolic stability due to proteolysis and non-specific interactions with multiple off-target molecules, might limit the therapeutic use of peptides. To enhance the stability and/or bioactivity of peptides, the development of "peptidomimetics," which mimick peptide molecules, is considered to be idealistic. Hence, chloroalkene dipeptide isosteres (CADIs) was designed, and their synthetic methods have been developed by us. Briefly, in a CADI an amide bond in peptides is replaced with a chloroalkene structure. CADIs might be superior mimetics of amide bonds because the Van der Waals radii (VDR) and the electronegativity value of a chlorine atom are close to those of the replaced oxygen atom. By a developed method of the "liner synthesis", N-tert-butylsulfonyl protected CADIs can be synthesized via a key reaction involving diastereoselective allylic alkylation using organocopper reagents. On the other hand, by a developed method of the "convergent synthesis", N-fluorenylmethoxycarbonyl (Fmoc)-protected carboxylic acids can be also constructed based on N- and C-terminal analogues from corresponding amino acid starting materials via an Evans syn aldol reaction and the Ichikawa allylcyanate rearrangement reaction involving a [3.3] sigmatropic rearrangement. Notably, CADIs can also be applied for Fmoc-based solid-phase peptide synthesis and therefore introduced into bioactive peptides including as the Arg-Gly-Asp (RGD) peptide and the amyloid β fragment Lys-Leu-Val-Phe-Phe (KLVFF) peptide, which are correlated with cell attachment and Alzheimer's disease (AD), respectively. These CADI-containing peptidomimetics stabilized the conformation and enhanced the potency of the cyclic RGD peptide and the cyclic KLVFF peptide.
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Affiliation(s)
- Takuya Kobayakawa
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Kohei Tsuji
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Hirokazu Tamamura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
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2
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Waser P, Faghtmann J, Gil-Ordóñez M, Kristensen A, Svenningsen EB, Poulsen TB, Jørgensen KA. Enantioselective Synthesis of α-Quaternary Isochromanes by Oxidative Aminocatalysis and Gold Catalysis. Chemistry 2024; 30:e202401354. [PMID: 38629389 DOI: 10.1002/chem.202401354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Indexed: 05/24/2024]
Abstract
A novel strategy that combines oxidative aminocatalysis and gold catalysis allows the preparation of chiral α-quaternary isochromanes, a motif that is prevalent in natural products and synthetic bioactive compounds. In the first step, α-branched aldehydes and propargylic alcohols are transformed into α-quaternary ethers with excellent optical purities (>90 % ee) via oxidative umpolung with DDQ and an amino acid-derived primary amine catalyst. Subsequent gold(I)-catalyzed intramolecular hydroarylation affords the isochromane products with retention of the quaternary stereocenter. A second approach explores the use of allylic alcohols as reaction partners for the oxidative coupling to furnish α-quaternary ethers with generally lower enantiopurities. Stereoretentive cyclization to isochromane products is achieved via intramolecular Friedel-Crafts type alkylation with allylic acetates as a reactive handle. A number of synthetic elaborations and a biological study on these α-quaternary isochromanes highlight the potential applicability of the presented method.
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Affiliation(s)
- Philipp Waser
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | - Jonas Faghtmann
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | - Marta Gil-Ordóñez
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | - Anne Kristensen
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | - Esben B Svenningsen
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | - Thomas B Poulsen
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | - Karl Anker Jørgensen
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
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3
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Zhang Q, Fan Z, Zhang L, You Q, Wang L. Strategies for Targeting Serine/Threonine Protein Phosphatases with Small Molecules in Cancer. J Med Chem 2021; 64:8916-8938. [PMID: 34156850 DOI: 10.1021/acs.jmedchem.1c00631] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Among numerous posttranslational regulation patterns, phosphorylation is reversibly controlled by the balance of kinases and phosphatases. The major form of cellular signaling involves the reversible phosphorylation of proteins on tyrosine, serine, or threonine residues. However, altered phosphorylation levels are found in diverse diseases, including cancer, making kinases and phosphatases ideal drug targets. In contrast to the success of prosperous kinase inhibitors, design of small molecules targeting phosphatase is struggling due to past bias and difficulty. This is especially true for serine/threonine phosphatases, one of the largest phosphatase families. From this perspective, we aim to provide insights into serine/threonine phosphatases and the small molecules targeting these proteins for drug development, especially in cancer. Through highlighting the modulation strategies, we aim to provide basic principles for the design of small molecules and future perspectives for the application of drugs targeting serine/threonine phosphatases.
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Affiliation(s)
- Qiuyue Zhang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China.,Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Zhongjiao Fan
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China.,Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Lianshan Zhang
- Shanghai Hengrui Pharmaceutical Co., Ltd., Shanghai 200245, China
| | - Qidong You
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China.,Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Lei Wang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China.,Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
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4
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Kobayakawa T, Tamamura H. Chloroalkene dipeptide isosteres as peptidomimetics. Methods Enzymol 2021; 656:191-239. [PMID: 34325787 DOI: 10.1016/bs.mie.2021.04.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
To date various biologically active peptides have been discovered, characterized and modified for drug discovery. However, the utilization of peptides as therapeutics involves some limitation due to several factors, including low metabolic stability owing to proteolysis and non-specific interactions with multiple off-target molecules. Hence, the development of "peptidomimetics," in which a part or whole of a molecule is modified, is a desirable strategy to enhance the stability or bioactivity of peptide-based drugs. In this situation, we have designed and developed a synthetic method for chloroalkene dipeptide isosteres (CADIs), which involves replacement of an amide bond in peptides with a chloroalkene structure and are classified as peptidomimetics. By a developed synthetic method, an N-tert-butylsulfonyl protected CADI can be obtained utilizing diastereoselective allylic alkylation with organocopper reagents as a key reaction. This CADI can be transformed into an N-fluorenylmethoxycarbonyl protected CADI in short steps. In addition, CADIs are used in Fmoc-based solid-phase peptide synthesis and introduced into a bioactive peptide. Protocols for practical preparation of some CADIs and peptide mimetics containing a CADI are described as detailed recipes.
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Affiliation(s)
- Takuya Kobayakawa
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hirokazu Tamamura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.
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5
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Abstract
Two formal syntheses and one total synthesis of fostriecin (1) have been achieved, as well as, the synthesis of its related congener dihydro-dephospho-fostriecin. All the routes use the Sharpless dihydroxylation to set the absolute stereochemistry at C-8/9 positions and a Leighton allylation to set the C-5 position of the natural product. In the formal syntheses a Noyori transfer hydrogenation of an ynone was used to set the C-11 position while the total synthesis employed a combination of asymmetric dihydroxylation and Pd-π-allyl reduction to set the C-11 position. Finally in the total synthesis, a trans-hydroboration of the C-12/13 alkyne was used in combination with a Suzuki cross coupling to establish the Z,Z,E-triene of fostriecin (1).
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Affiliation(s)
- Gao Dong
- Department of Chemistry, West Virginia University, Morgantown, WV 26506, US
| | - Bohui Li
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, US
| | - George O'Doherty
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, US
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6
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Mehdi M, Bushnell EAC, Nikoo S, Gauld JW, Green JR. Generation and Reactions of a Benzodehydrotropylium Ion-Co 2(CO) 6 Complex. ACS OMEGA 2019; 4:18600-18608. [PMID: 31737819 PMCID: PMC6854560 DOI: 10.1021/acsomega.9b02390] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 10/15/2019] [Indexed: 05/08/2023]
Abstract
A series of 7-methylenedehydrobenzo[7]annulen-5-ol hexacarbonyldicobalt complexes were generated by Hosomi-Sakurai reactions of allylsilanes containing o-alkynylarylaldehyde-Co2(CO)6 complexes. One of the cyclization products was converted into its corresponding dihydrobenzo[7]annulen-7-ol hexacarbonyldicobalt complex, an immediate precursor to a benzodehydrotropylium-Co2(CO)6. The cation was generated in situ and reacted with four nucleophiles, and its aromatic stabilization was determined by computational methods.
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7
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Gao D, Li B, O’Doherty GA. Synthesis of Dehydro-Dephospho-Fostriecin and Formal Total Synthesis of Fostriecin. Org Lett 2019; 21:8334-8338. [PMID: 31584287 DOI: 10.1021/acs.orglett.9b03120] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dong Gao
- Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Bohui Li
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
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8
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Yamasaki Y, Kumagai T, Kanno S, Kakiuchi F, Kochi T. Selective Long-Distance Isomerization of Terminal Alkenes via Nondissociative Chain Walking. J Org Chem 2018; 83:9322-9333. [DOI: 10.1021/acs.joc.8b01288] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuya Yamasaki
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Takaaki Kumagai
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Shota Kanno
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Fumitoshi Kakiuchi
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Takuya Kochi
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
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9
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Hayashi Y, Saitoh T, Arase H, Kawauchi G, Takeda N, Shimasaki Y, Sato I. Two-Pot Synthesis of Chiral 1,3-syn
-Diols through Asymmetric Organocatalytic Aldol and Wittig Reactions Followed by Domino Hemiacetal/Oxy-Michael Reactions. Chemistry 2018; 24:4909-4915. [DOI: 10.1002/chem.201705930] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Indexed: 11/12/2022]
Affiliation(s)
- Yujiro Hayashi
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki-Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Takanobu Saitoh
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki-Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Hiromu Arase
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki-Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Genki Kawauchi
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki-Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Naohiro Takeda
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki-Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Yasuharu Shimasaki
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki-Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Itaru Sato
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki-Aza Aoba, Aoba-ku Sendai 980-8578 Japan
- Present address: Department of Chemistry; Faculty of Science; Ibaraki University; Ibaraki 310-8512 Japan
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10
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De Rosa M, La Manna P, Soriente A, Gaeta C, Talotta C, Hickey N, Geremia S, Neri P. A Simple Tetraminocalix[4]arene as a Highly Efficient Catalyst under "On-Water" Conditions through Hydrophobic Amplification of Weak Hydrogen Bonds. Chemistry 2017; 23:7142-7151. [PMID: 28346722 DOI: 10.1002/chem.201701247] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Indexed: 01/05/2023]
Abstract
The simple tetraminocalix[4]arene 1, which contains weak H-bond-donor NH2 groups, is reported to be a highly efficient organocatalyst for the Vinylogous Mukaiyama Aldol Reaction (VMAR) of 2-(trimethylsilyloxy)furan 5 with α-ketoesters 6 a-l under "on-water" conditions owing to the hydrophobic amplification of weak H-bond interactions. The catalytic efficiency of calixarene catalyst 1 was shown to be closely related to its recognition abilities towards the reactants 5 and 6 through a multipoint recognition model. The proposed model provided good explanations for the differences on the reaction rate acceleration and on the stereoselectivity observed with different substrates.
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Affiliation(s)
- Margherita De Rosa
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Ponte don Melillo, 84084, Fisciano (SA), Italy
| | - Pellegrino La Manna
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Ponte don Melillo, 84084, Fisciano (SA), Italy
| | - Annunziata Soriente
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Ponte don Melillo, 84084, Fisciano (SA), Italy
| | - Carmine Gaeta
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Ponte don Melillo, 84084, Fisciano (SA), Italy
| | - Carmen Talotta
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Ponte don Melillo, 84084, Fisciano (SA), Italy
| | - Neal Hickey
- Centro di Eccellenza in Biocristallografia, Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, via L. Giorgieri 1, 34127, Trieste, Italy
| | - Silvano Geremia
- Centro di Eccellenza in Biocristallografia, Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, via L. Giorgieri 1, 34127, Trieste, Italy
| | - Placido Neri
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Ponte don Melillo, 84084, Fisciano (SA), Italy
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11
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De Rosa M, La Manna P, Soriente A, Gaeta C, Talotta C, Hickey N, Geremia S, Neri P. Supramolecular synthons in the gamma-hydroxybutenolides. CrystEngComm 2017. [DOI: 10.1039/c7ce00953d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The supramolecular organization in the solid state of five novel gamma-hydroxybutenolides is described.
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Affiliation(s)
- Margherita De Rosa
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Pellegrino La Manna
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Annunziata Soriente
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Carmine Gaeta
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Carmen Talotta
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Neal Hickey
- Centro di Eccellenza in Biocristallografia
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Trieste
- I-34127 Trieste
- Italy
| | - Silvano Geremia
- Centro di Eccellenza in Biocristallografia
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Trieste
- I-34127 Trieste
- Italy
| | - Placido Neri
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
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12
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Trost BM, Knopf JD, Brindle CS. Synthetic Strategies Employed for the Construction of Fostriecin and Related Natural Products. Chem Rev 2016; 116:15035-15088. [PMID: 28027648 PMCID: PMC5720176 DOI: 10.1021/acs.chemrev.6b00488] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Fostriecin and related natural products present a significant challenge for synthetic chemists due to their structural complexity and chemical sensitivity. This review will chronicle the successful efforts of synthetic chemists in the construction of these biologically active molecules. Key carbon-carbon bond forming reactions will be highlighted, as well as the methods used to install the numerous stereocenters present in this class of compounds.
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Affiliation(s)
- Barry M. Trost
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, United States
| | - Joshua D. Knopf
- Department of Chemistry, Trinity College, 300 Summit Street, Hartford, Connecticut 06106, United States
| | - Cheyenne S. Brindle
- Department of Chemistry, Trinity College, 300 Summit Street, Hartford, Connecticut 06106, United States
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13
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Wells SM, Widen JC, Harki DA, Brummond KM. Alkyne Ligation Handles: Propargylation of Hydroxyl, Sulfhydryl, Amino, and Carboxyl Groups via the Nicholas Reaction. Org Lett 2016; 18:4566-9. [PMID: 27570975 DOI: 10.1021/acs.orglett.6b02088] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The Nicholas reaction has been applied to the installation of alkyne ligation handles. Acid-promoted propargylation of hydroxyl, sulfhydryl, amino, and carboxyl groups using dicobalt hexacarbonyl-stabilized propargylium ions is reported. This method is useful for introduction of propargyl groups into base-sensitive molecules, thereby expanding the toolbox of methods for the incorporation of alkynes for bio-orthogonal reactions. High-value molecules are used as the limiting reagent, and various propargylium ion precursors are compared.
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Affiliation(s)
- Sarah M Wells
- Department of Chemistry, University of Pittsburgh , Pittsburgh, Pennsylvania 15206, United States
| | - John C Widen
- Department of Medicinal Chemistry, University of Minnesota , Minneapolis, Minnesota 55455, United States
| | - Daniel A Harki
- Department of Medicinal Chemistry, University of Minnesota , Minneapolis, Minnesota 55455, United States
| | - Kay M Brummond
- Department of Chemistry, University of Pittsburgh , Pittsburgh, Pennsylvania 15206, United States
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14
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Choe H, Pham TT, Lee JY, Latif M, Park H, Kang YK, Lee J. Remote Stereoinductive Intramolecular Nitrile Oxide Cycloaddition: Asymmetric Total Synthesis and Structure Revision of (-)-11β-Hydroxycurvularin. J Org Chem 2016; 81:2612-7. [PMID: 26894643 DOI: 10.1021/acs.joc.5b02760] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The first total synthesis and structure revision of (-)-11β-hydroxycurvularin (1b), a macrolide possessing a β-hydroxyketone moiety, were accomplished. The β-hydroxyketone moiety in this natural product was introduced by cleavage of the N-O bond in an isoxazoline ring that was formed diastereoselectively in a 1,5-remote stereocontrolled fashion by employing intramolecular nitrile oxide cycloaddition.
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Affiliation(s)
- Hyeonjeong Choe
- Drug Discovery Division, Korea Research Institute of Chemical Technology , Yuseong, Daejeon 34114, Republic of Korea
| | - Thuy Trang Pham
- College of Pharmacy, Kangwon National University , 1 Kangwondaehak-gil, Chuncheon, Gangwon-do 24341, Republic of Korea
| | - Joo Yun Lee
- Drug Discovery Division, Korea Research Institute of Chemical Technology , Yuseong, Daejeon 34114, Republic of Korea
| | - Muhammad Latif
- Drug Discovery Division, Korea Research Institute of Chemical Technology , Yuseong, Daejeon 34114, Republic of Korea
| | - Haeil Park
- College of Pharmacy, Kangwon National University , 1 Kangwondaehak-gil, Chuncheon, Gangwon-do 24341, Republic of Korea
| | - Young Kee Kang
- Department of Chemistry, Chungbuk National University , 1 Chungdae-ro, Seowon-gu, Cheongju, Chungbuk 28644, Republic of Korea
| | - Jongkook Lee
- College of Pharmacy, Kangwon National University , 1 Kangwondaehak-gil, Chuncheon, Gangwon-do 24341, Republic of Korea
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15
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Wang T, Yu Z, Hoon DL, Huang KW, Lan Y, Lu Y. Highly enantioselective construction of tertiary thioethers and alcohols via phosphine-catalyzed asymmetric γ-addition reactions of 5 H-thiazol-4-ones and 5 H-oxazol-4-ones: scope and mechanistic understandings. Chem Sci 2015; 6:4912-4922. [PMID: 29142722 PMCID: PMC5664357 DOI: 10.1039/c5sc01614b] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 06/02/2015] [Indexed: 12/11/2022] Open
Abstract
Phosphine-catalyzed highly enantioselective γ-additions of 5H-thiazol-4-ones and 5H-oxazol-4-ones to allenoates have been developed for the first time. With the employment of amino-acid derived bifunctional phosphines, a wide range of substituted 5H-thiazol-4-one and 5H-oxazol-4-one derivatives bearing heteroatom (S or O)-containing tertiary chiral centers were constructed in high yields and excellent enantioselectivities. The reported method provides facile access to enantioenriched tertiary thioethers/alcohols. The mechanism of the γ-addition reaction was investigated by performing DFT calculations, and the hydrogen bonding interactions between the Brønsted acid moiety of the phosphine catalysts and the "C[double bond, length as m-dash]O" unit of the donor molecules were shown to be crucial in asymmetric induction.
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Affiliation(s)
- Tianli Wang
- Department of Chemistry , National University of Singapore , 3 Science Drive 3 , Singapore 117543 , Singapore .
| | - Zhaoyuan Yu
- School of Chemistry and Chemical Engineering , Chongqing University , Chongqing 400030 , P. R. China .
| | - Ding Long Hoon
- Department of Chemistry , National University of Singapore , 3 Science Drive 3 , Singapore 117543 , Singapore .
| | - Kuo-Wei Huang
- Division of Physical Sciences and Engineering , KAUST Catalysis Center , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Saudi Arabia
| | - Yu Lan
- School of Chemistry and Chemical Engineering , Chongqing University , Chongqing 400030 , P. R. China .
| | - Yixin Lu
- Department of Chemistry , National University of Singapore , 3 Science Drive 3 , Singapore 117543 , Singapore .
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16
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Kobayakawa T, Narumi T, Tamamura H. Remote Stereoinduction in the Organocuprate-Mediated Allylic Alkylation of Allylic gem-Dichlorides: Highly Diastereoselective Synthesis of (Z)-Chloroalkene Dipeptide Isosteres. Org Lett 2015; 17:2302-5. [DOI: 10.1021/acs.orglett.5b00611] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takuya Kobayakawa
- Institute
of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Tetsuo Narumi
- Institute
of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan
- Department
of Applied Chemistry and Biochemical Engineering, Faculty of Engineering, Shizuoka University,
Hamamatsu, Shizuoka, 432-8561, Japan
| | - Hirokazu Tamamura
- Institute
of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan
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17
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Hsiao CC, Liao HH, Rueping M. Enantio- and Diastereoselective Access to Distant Stereocenters Embedded within Tetrahydroxanthenes: Utilizingortho-Quinone Methides as Reactive Intermediates in Asymmetric Brønsted Acid Catalysis. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406587] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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18
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Hsiao CC, Liao HH, Rueping M. Enantio- and Diastereoselective Access to Distant Stereocenters Embedded within Tetrahydroxanthenes: Utilizingortho-Quinone Methides as Reactive Intermediates in Asymmetric Brønsted Acid Catalysis. Angew Chem Int Ed Engl 2014; 53:13258-63. [DOI: 10.1002/anie.201406587] [Citation(s) in RCA: 195] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Indexed: 11/10/2022]
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19
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Lobo F, Gómez AM, Miranda S, López JC. A Substrate-Based Approach to Skeletal Diversity from Dicobalt Hexacarbonyl (C1)-Alkynyl Glycals by Exploiting Its Combined Ferrier-Nicholas Reactivity. Chemistry 2014; 20:10492-502. [DOI: 10.1002/chem.201402149] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Indexed: 11/11/2022]
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20
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Huang KH, Isobe M. Highly Regioselective Hydrosilylation of Unsymmetric Alkynes Using a Phenylthio Directing Group. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402577] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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21
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Duan Z, Han J, Qian P, Zhang Z, Wang Y, Pan Y. A convenient enantioselective decarboxylative aldol reaction to access chiral α-hydroxy esters using β-keto acids. Beilstein J Org Chem 2014; 10:969-74. [PMID: 24991246 PMCID: PMC4077541 DOI: 10.3762/bjoc.10.95] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Accepted: 04/10/2014] [Indexed: 12/15/2022] Open
Abstract
We show a convenient decarboxylative aldol process using a scandium catalyst and a PYBOX ligand to generate a series of highly functionalized chiral α-hydroxy esters. The protocol tolerates a broad range of β-keto acids with inactivated aromatic and aliphatic α-keto esters. The possible mechanism is rationalized.
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Affiliation(s)
- Zhiqiang Duan
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Jianlin Han
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China ; Institute for Chemistry & Biomedical Sciences, Nanjing University, Nanjing, 210093, China
| | - Ping Qian
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Zirui Zhang
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Yi Wang
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China ; State of Key Laboratory of Coordination, Nanjing University, Nanjing, 210093, China
| | - Yi Pan
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China ; State of Key Laboratory of Coordination, Nanjing University, Nanjing, 210093, China
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22
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Rossi R, Bellina F, Lessi M, Manzini C. Development and applications of highly selective palladium-catalyzed monocoupling reactions of (cyclo)alkenes and 1,3-alkadienes bearing two or three electrophilic sites and bis(enol triflates) with terminal alkynes. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.06.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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23
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Mao Z, Zhu X, Lin A, Li W, Shi Y, Mao H, Zhu C, Cheng Y. In SituFormed Bifunctional Primary Amine-Imine Catalyst: Application to the Construction of Chiral Tertiary Alcohols through Asymmetric Aldol-Type Reaction. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300108] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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24
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Theobald B, Bonness K, Musiyenko A, Andrews JF, Urban G, Huang X, Dean NM, Honkanen RE. Suppression of Ser/Thr phosphatase 4 (PP4C/PPP4C) mimics a novel post-mitotic action of fostriecin, producing mitotic slippage followed by tetraploid cell death. Mol Cancer Res 2013; 11:845-55. [PMID: 23671329 DOI: 10.1158/1541-7786.mcr-13-0032] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
UNLABELLED Fostriecin is a natural product purified from Sterptomyces extracts with antitumor activity sufficient to warrant human clinical trials. Unfortunately, difficulties associated with supply and stable drug formulation stalled further development. At a molecular level, fostriecin is known to act as a catalytic inhibitor of four PPP-family phosphatases, and reports describing the design of molecules in this class suggest derivatives targeting enzymes within the fostriecin-sensitive subfamily can be successful. However, it is not clear if the tumor-selective cytotoxicity of fostriecin results from the inhibition of a specific phosphatase, multiple phosphatases, or a limited subset of fostriecin sensitive phosphatases. How the inhibition of sensitive phosphatases contributes to tumor-selective cytotoxicity is also not clear. Here, high-content time-lapse imaging of live cells revealed novel insight into the cellular actions of fostriecin, showing that fostriecin-induced apoptosis is not simply induced following a sustained mitotic arrest. Rather, apoptosis occurred in an apparent second interphase produced when tetraploid cells undergo mitotic slippage. Comparison of the actions of fostriecin and antisense-oligonucleotides specifically targeting human fostriecin-sensitive phosphatases revealed that the suppression PP4C alone is sufficient to mimic many actions of fostriecin. Importantly, targeted suppression of PP4C induced apoptosis, with death occurring in tetraploid cells following mitotic slippage. This effect was not observed following the suppression of PP1C, PP2AC, or PP5C. These data clarify PP4C as a fostriecin-sensitive phosphatase and demonstrate that the suppression of PP4C triggers mitotic slippage/apoptosis. IMPLICATIONS Future development of fostriecin class inhibitors should consider PP4C as a potentially important target. Mol Cancer Res; 11(8); 845-55. ©2013 AACR.
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Affiliation(s)
- Benjamin Theobald
- Department of Biochemistry and Molecular Biology, MSB 2362, University of South Alabama, Mobile, AL 36688, USA
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25
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Otsuka Y, Takada H, Yasuda S, Kumagai N, Shibasaki M. Direct Catalytic Asymmetric Addition of Allylic Cyanides to Aldehydes for Expeditious Access to Enantioenriched Unsaturated δ-Valerolactones. Chem Asian J 2012. [DOI: 10.1002/asia.201201021] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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26
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Herndon JW. The chemistry of the carbon–transition metal double and triple bond: Annual survey covering the year 2010. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.02.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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27
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Lichtenberg C, Engel J, Spaniol TP, Englert U, Raabe G, Okuda J. Bis(allyl)zinc revisited: sigma versus pi bonding of allyl coordination. J Am Chem Soc 2012; 134:9805-11. [PMID: 22591244 DOI: 10.1021/ja303480a] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The reinvestigation of two allyl zinc compounds, parent bis(allyl)zinc [Zn(C(3)H(5))(2)] (1) and 2-methallyl chloro zinc [Zn(C(4)H(7))Cl] (2), revealed two new coordination modes in the solid state for the allyl ligand, viz cis- and trans-μ(2)-η(1):η(1). These results call for modification of the conventional interpretation of zinc-allyl interactions. Computational results indicate that the classical η(3)-bonding mode of the allyl ligand is not favored in zinc compounds. A rare case of a zinc-olefin interaction in the dimer of [Zn(η(1)-C(3)H(5))(OC(C(3)H(5))Ph(2))] was found in the monoinsertion product of 1 with benzophenone.
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Affiliation(s)
- Crispin Lichtenberg
- Institute of Inorganic Chemistry, RWTH Aachen, Landoltweg 1, 52056 Aachen, Germany
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28
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Cowper N, Azzi S, Dupont-Gaudet K, Burch JD. 1,4-Induction in aldol reactions of (tertiary α′-alkoxy)methyl ketones: synthesis of the C8–C11 stereotriad of ent-fostriecin. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.01.130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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29
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Liu C, Dou X, Lu Y. Organocatalytic Asymmetric Aldol Reaction of Hydroxyacetone with β,γ-Unsaturated α-Keto Esters: Facile Access to Chiral Tertiary Alcohols. Org Lett 2011; 13:5248-51. [DOI: 10.1021/ol2021274] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chen Liu
- Department of Chemistry & Medicinal Chemistry Program, Life Sciences Institute, National University of Singapore, 3 Science Drive 3, Republic of Singapore, 117543
| | - Xiaowei Dou
- Department of Chemistry & Medicinal Chemistry Program, Life Sciences Institute, National University of Singapore, 3 Science Drive 3, Republic of Singapore, 117543
| | - Yixin Lu
- Department of Chemistry & Medicinal Chemistry Program, Life Sciences Institute, National University of Singapore, 3 Science Drive 3, Republic of Singapore, 117543
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30
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Wang Y, Xing Y, Zhang Q, O'Doherty GA. De novo synthesis of natural products via the asymmetric hydration of polyenes. Chem Commun (Camb) 2011; 47:8493-505. [PMID: 21559534 PMCID: PMC5815319 DOI: 10.1039/c1cc11791b] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
For the last ten years our group has been working toward the development of an asymmetric hydration approach to polyketide natural products based on the regioselective hydration of di- and tri-enoates. Key to the success of this approach is the recognition that both high regiocontrol and asymmetric induction could be obtained by the use of a Sharpless asymmetric dihydroxylation reaction. Herein we describe the development of the method and its application to natural product total synthesis.
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Affiliation(s)
- Yanping Wang
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts, USA
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31
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Luo J, Wang H, Han X, Xu LW, Kwiatkowski J, Huang KW, Lu Y. The Direct Asymmetric Vinylogous Aldol Reaction of Furanones with α-Ketoesters: Access to Chiral γ-Butenolides and Glycerol Derivatives. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201006316] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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32
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Luo J, Wang H, Han X, Xu LW, Kwiatkowski J, Huang KW, Lu Y. The Direct Asymmetric Vinylogous Aldol Reaction of Furanones with α-Ketoesters: Access to Chiral γ-Butenolides and Glycerol Derivatives. Angew Chem Int Ed Engl 2011; 50:1861-4. [DOI: 10.1002/anie.201006316] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2010] [Revised: 12/03/2010] [Indexed: 11/09/2022]
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