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Escorihuela J, Sedgwick DM, Llobat A, Medio-Simón M, Barrio P, Fustero S. Pauson-Khand reaction of fluorinated compounds. Beilstein J Org Chem 2020; 16:1662-1682. [PMID: 32733610 PMCID: PMC7372243 DOI: 10.3762/bjoc.16.138] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 07/02/2020] [Indexed: 12/11/2022] Open
Abstract
The Pauson-Khand reaction (PKR) is one of the key methods for the construction of cyclopentenone derivatives, which can in turn undergo diverse chemical transformations to yield more complex biologically active molecules. Despite the increasing availability of fluorinated building blocks and methodologies to incorporate fluorine in compounds with biological interest, there have been few significant advances focused on the fluoro-Pauson-Khand reaction, both in the inter- and intramolecular versions. Furthermore, the use of vinyl fluorides as olefinic counterparts had been completely overlooked. In this review, we collect the advances both on the stoichiometric and catalytic intermolecular and intramolecular fluoro-Pauson-Khand reaction, with special attention to the PKR of enynes containing a fluoride moiety.
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Affiliation(s)
- Jorge Escorihuela
- Departamento de Química Orgánica, Facultad de Farmacia, Universitat de València, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain
| | - Daniel M Sedgwick
- Departamento de Química Orgánica, Facultad de Farmacia, Universitat de València, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain
| | - Alberto Llobat
- Departamento de Química Orgánica, Facultad de Farmacia, Universitat de València, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain
| | - Mercedes Medio-Simón
- Departamento de Química Orgánica, Facultad de Farmacia, Universitat de València, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain
| | - Pablo Barrio
- Departmento de Química Orgánica e Inorgánica, Facultad de Química, Universidad de Oviedo, Av. Julián Clavería 8, Campus Universitario de El Cristo, 33006 Oviedo, Spain
| | - Santos Fustero
- Departamento de Química Orgánica, Facultad de Farmacia, Universitat de València, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain
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Gallagher AG, Tian H, Torres-Herrera OA, Yin S, Xie A, Lange DM, Wilson JK, Mueller LG, Gau MR, Carroll PJ, Martinez-Solorio D. Access to Highly Functionalized Cyclopentenones via Diastereoselective Pauson-Khand Reaction of Siloxy-Tethered 1,7-Enynes. Org Lett 2019; 21:8646-8651. [PMID: 31613103 DOI: 10.1021/acs.orglett.9b03255] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A diastereoselective Co2(CO)8-mediated Pauson-Khand reaction (PKR) of siloxy-tethered 1,7-enynes for the synthesis of cyclopentaoxasilinones has been developed. This transformation can be performed on a multigram scale and is characterized by a broad substrate scope, functional group compatibility, and high chemo- and diastereoselectivity. Oxidation of the resulting cyclopentaoxasilinones delivers stereoenriched β-alkylated cyclopentenones, which are inaccessible by intermolecular PKRs. This research provides a practical solution to the challenges associated with the classical intermolecular PKR.
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Affiliation(s)
- Austin G Gallagher
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Huan Tian
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Osmar A Torres-Herrera
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Shuai Yin
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Anxin Xie
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Daniel M Lange
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Jerica K Wilson
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Louis G Mueller
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Michael R Gau
- Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104 , United States
| | - Patrick J Carroll
- Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104 , United States
| | - Dionicio Martinez-Solorio
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
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Dunn J, Dobbs AP. Synthesis and reactions of donor cyclopropanes: efficient routes to cis - and trans -tetrahydrofurans. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Rodriguez R, Barrios Steed D, Kawamata Y, Su S, Smith PA, Steed TC, Romesberg FE, Baran PS. Axinellamines as broad-spectrum antibacterial agents: scalable synthesis and biology. J Am Chem Soc 2014; 136:15403-13. [PMID: 25328977 PMCID: PMC4227811 DOI: 10.1021/ja508632y] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Indexed: 01/17/2023]
Abstract
Antibiotic-resistant bacteria present an ongoing challenge to both chemists and biologists as they seek novel compounds and modes of action to out-maneuver continually evolving resistance pathways, especially against Gram-negative strains. The dimeric pyrrole-imidazole alkaloids represent a unique marine natural product class with diverse primary biological activity and chemical architecture. This full account traces the strategy used to develop a second-generation route to key spirocycle 9, culminating in a practical synthesis of the axinellamines and enabling their discovery as broad-spectrum antibacterial agents, with promising activity against both Gram-positive and Gram-negative bacteria. While their detailed mode of antibacterial action remains unclear, the axinellamines appear to cause secondary membrane destabilization and impart an aberrant cellular morphology consistent with the inhibition of normal septum formation. This study serves as a rare example of a natural product initially reported to be devoid of biological activity surfacing as an active antibacterial agent with an intriguing mode of action.
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Affiliation(s)
- Rodrigo
A. Rodriguez
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Danielle Barrios Steed
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Yu Kawamata
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Shun Su
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Peter A. Smith
- RQx
Pharmaceuticals, Inc., 11099 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Tyler C. Steed
- School
of Medicine, University of California, San
Diego, 9500 Gilman Drive, San Diego, California 92093, United States
| | - Floyd E. Romesberg
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Phil S. Baran
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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Bracegirdle S, Anderson EA. Recent advances in the use of temporary silicon tethers in metal-mediated reactions. Chem Soc Rev 2010; 39:4114-29. [DOI: 10.1039/c0cs00007h] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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