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Lee J, Panek JS. Total Synthesis of (+)-Isatisine A: Application of a Silicon-Directed Mukaiyama-Type [3 + 2]-Annulation. J Org Chem 2015; 80:2959-71. [DOI: 10.1021/acs.joc.5b00051] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jihoon Lee
- Department
of Chemistry and
Center for Chemical Methodology and Library Development, Metcalf Center
for Science and Engineering, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - James S. Panek
- Department
of Chemistry and
Center for Chemical Methodology and Library Development, Metcalf Center
for Science and Engineering, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
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2
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Investigation on the oxidation of aryl oxiranylmethanols and the synthesis of 2-aryl-N-thiazolyl-oxirane-2-carboxamides as glucokinase activators. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.06.111] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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3
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Cross-Coupling Reactions of Organosilicon Compounds in the Stereocontrolled Synthesis of Retinoids. Chemistry 2012; 18:4401-10. [DOI: 10.1002/chem.201103360] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2011] [Indexed: 11/07/2022]
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4
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Cheng B, Wu F, Yang X, Zhou Y, Wan X, Zhai H. Efficient total synthesis of marine alkaloid (-)-nakadomarin A. Chemistry 2011; 17:12569-72. [PMID: 21956824 DOI: 10.1002/chem.201102101] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2011] [Indexed: 11/05/2022]
Affiliation(s)
- Bin Cheng
- Hefei National Laboratory for Physical Science at Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, P.R. China
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5
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Mo JT, Hwang H, Lee PH. Palladium-Catalyzed Cross-Coupling Reaction and Gold-Catalyzed Cyclization for Preparation of Ethyl 2-Aryl 2,3-Alkadienoates and α-Aryl γ-Butenolides. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.8.2911] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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6
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Larghi EL, Kaufman TS. Synthesis of Oxacycles Employing the Oxa‐Pictet–Spengler Reaction: Recent Developments and New Prospects. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100271] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Enrique L. Larghi
- Institute of Chemistry of Rosario (IQUIR, CONICET‐UNR)and Department of Organic Chemistry, School of Pharmaceuticaland Biochemical Sciences, National University of Rosario, Suipacha 531 (S2002LRK) Rosario, Argentina, Fax: +54‐341‐4370477, ext. 35
| | - Teodoro S. Kaufman
- Institute of Chemistry of Rosario (IQUIR, CONICET‐UNR)and Department of Organic Chemistry, School of Pharmaceuticaland Biochemical Sciences, National University of Rosario, Suipacha 531 (S2002LRK) Rosario, Argentina, Fax: +54‐341‐4370477, ext. 35
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7
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Lamas MC, Malacria M, Thorimbert S. Enantioselective Synthesis of Deoxymannojirimycin Based on Sharpless Asymmetric Epoxidation of a Highly Functionalized Allylic Alcohol. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100102] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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8
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Denmark SE, Liu JHC, Muhuhi JM. Stereocontrolled total syntheses of isodomoic acids G and H via a unified strategy. J Org Chem 2011; 76:201-15. [PMID: 21121685 PMCID: PMC3076050 DOI: 10.1021/jo101790z] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Marine neuroexcitatory compounds isodomoic acids G and H were efficiently synthesized from a common intermediate using a silicon-based cross-coupling reaction. Dividing each target compound into the core fragment and the side-chain fragment enabled the synthesis to be convergent. The trans-2,3-disubstituted pyrrolidine core fragment was accessed through a diastereoselective rhodium-catalyzed carbonylative silylcarbocyclization reaction of a vinylglycine-derived 1,6-enyne. A stereochemically divergent desilylative iodination reaction was developed to convert the cyclization product to both E- and Z-alkenyl iodides, which would eventually lead to isodomoic acid G and isodomoic acid H, respectively. The late-stage alkenyl-alkenyl silicon-based cross-coupling reaction uniting the core alkenyl iodides and the side-chain alkenylsilanol was achieved under mild conditions. Finally, two mild deprotections afforded the target molecules.
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Affiliation(s)
- Scott E Denmark
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801, USA.
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9
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Abstract
Total synthesis of (+)-isatisine A is described based on the application of a silyl-directed Mukaiyama-type [3 + 2]-annulation for the preparation of a fully substituted furan core. The indole branch forming the quaternary carbon center at C2 was constructed by addition to an intermediate N-acyliminium ion derived from aminal 4. In addition, the fused tetracyclic framework including furan core was built up using modified Buchwald amidation conditions.
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Affiliation(s)
- Jihoon Lee
- Department of Chemistry and Center for Chemical Methodology and Library Development, Metcalf Center for Science and Engineering, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, USA
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10
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Lee PH, Mo J, Kang D, Eom D, Park C, Lee CH, Jung YM, Hwang H. Preparation of Ethyl 2-Aryl 2,3-Alkadienoates via Palladium-Catalyzed Selective Cross-Coupling Reactions. J Org Chem 2010; 76:312-5. [DOI: 10.1021/jo1020085] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Phil Ho Lee
- Department of Chemistry, National Research Laboratory for Catalytic Organic Reactions and Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 200-701, Republic of Korea
| | - Juntae Mo
- Department of Chemistry, National Research Laboratory for Catalytic Organic Reactions and Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 200-701, Republic of Korea
| | - Dongjin Kang
- Department of Chemistry, National Research Laboratory for Catalytic Organic Reactions and Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 200-701, Republic of Korea
| | - Dahan Eom
- Department of Chemistry, National Research Laboratory for Catalytic Organic Reactions and Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 200-701, Republic of Korea
| | - Chansoo Park
- Department of Chemistry, National Research Laboratory for Catalytic Organic Reactions and Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 200-701, Republic of Korea
| | - Chang-Hee Lee
- Department of Chemistry, National Research Laboratory for Catalytic Organic Reactions and Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 200-701, Republic of Korea
| | - Young Mee Jung
- Department of Chemistry, National Research Laboratory for Catalytic Organic Reactions and Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 200-701, Republic of Korea
| | - Hyonseok Hwang
- Department of Chemistry, National Research Laboratory for Catalytic Organic Reactions and Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 200-701, Republic of Korea
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11
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Wrona IE, Lowe JT, Turbyville TJ, Johnson TR, Beignet J, Beutler JA, Panek JS. Synthesis of a 35-member stereoisomer library of bistramide A: evaluation of effects on actin state, cell cycle and tumor cell growth. J Org Chem 2010; 74:1897-916. [PMID: 19191575 DOI: 10.1021/jo802269q] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Synthesis and preliminary biological evaluation of a 35-member library of bistramide A stereoisomers are reported. All eight stereoisomers of the C1-C13 tetrahydropyran fragment of the molecule were prepared utilizing crotylsilane reagents 9 and 10 in our [4+2]-annulation methodology. In addition, the four isomers of the C14-C18 gamma-amino acid unit were accessed via a Lewis acid mediated crotylation reaction with use of both enantiomers of organosilane 11. The spiroketal subunit of bistramide A was modified at the C39-alcohol to give another point of stereochemical diversification. The fragments were coupled by using a standard peptide coupling protocol to provide 35 stereoisomers of the natural product. These stereochemical analogues were screened for their effects on cellular actin and cytotoxicity against cancer cell lines (UO-31 renal and SF-295 CNS). The results of these assays identified one analogue, 1.21, with enhanced potency relative to the natural product, bistramide A.
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Affiliation(s)
- Iwona E Wrona
- Department of Chemistry and Center for Chemical Methodology and Library Development, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, USA
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12
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Sore HF, Blackwell DT, MacDonald SJF, Spring DR. Diversity-Oriented Synthesis of Disubstituted Alkenes Using Masked Silanols. Org Lett 2010; 12:2806-9. [DOI: 10.1021/ol100895d] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hannah F. Sore
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK CB2 1EW
| | - David T. Blackwell
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK CB2 1EW
| | - Simon J. F. MacDonald
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK CB2 1EW
| | - David R. Spring
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK CB2 1EW
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13
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Affiliation(s)
- Jihoon Lee
- Department of Chemistry and Center for Chemical Methodology and Library Development, Metcalf Center for Science and Engineering, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215
| | - James S. Panek
- Department of Chemistry and Center for Chemical Methodology and Library Development, Metcalf Center for Science and Engineering, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215
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14
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De SK. Ruthenium (III) Chloride as a Novel and Efficient Catalyst for the Synthesis of Substituted Pyrroles Under Solvent-Free Conditions. Catal Letters 2008. [DOI: 10.1007/s10562-008-9461-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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15
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Abstract
An asymmetric synthesis of the marine metabolite bistramide A is reported. The synthesis relies on the utility of three different organosilane reagents to construct all principle fragments and 8 of the 11 stereogenic centers of the natural product. [structure: see text].
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Affiliation(s)
- Jason T Lowe
- Department of Chemistry and Center for Chemical Methodology and Library Development, Metcalf Center for Science and Engineering, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, USA
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