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Shen K, Logan AWJ, Colell JFP, Bae J, Ortiz GX, Theis T, Warren WS, Malcolmson SJ, Wang Q. Diazirines as Potential Molecular Imaging Tags: Probing the Requirements for Efficient and Long‐Lived SABRE‐Induced Hyperpolarization. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704970] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kun Shen
- Department of Chemistry Duke University French Family Science Center 124 Science Drive Durham NC 27708 USA
| | - Angus W. J. Logan
- Department of Chemistry Duke University French Family Science Center 124 Science Drive Durham NC 27708 USA
| | - Johannes F. P. Colell
- Department of Chemistry Duke University French Family Science Center 124 Science Drive Durham NC 27708 USA
| | - Junu Bae
- Department of Chemistry Duke University French Family Science Center 124 Science Drive Durham NC 27708 USA
| | - Gerardo X. Ortiz
- Department of Chemistry Duke University French Family Science Center 124 Science Drive Durham NC 27708 USA
| | - Thomas Theis
- Department of Chemistry Duke University French Family Science Center 124 Science Drive Durham NC 27708 USA
| | - Warren S. Warren
- Department of Chemistry Duke University French Family Science Center 124 Science Drive Durham NC 27708 USA
- Department of Physics Duke University USA
- Department of Radiology Duke University USA
| | - Steven J. Malcolmson
- Department of Chemistry Duke University French Family Science Center 124 Science Drive Durham NC 27708 USA
| | - Qiu Wang
- Department of Chemistry Duke University French Family Science Center 124 Science Drive Durham NC 27708 USA
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Shen K, Logan AWJ, Colell JFP, Bae J, Ortiz GX, Theis T, Warren WS, Malcolmson SJ, Wang Q. Diazirines as Potential Molecular Imaging Tags: Probing the Requirements for Efficient and Long-Lived SABRE-Induced Hyperpolarization. Angew Chem Int Ed Engl 2017; 56:12112-12116. [PMID: 28664640 DOI: 10.1002/anie.201704970] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Indexed: 01/06/2023]
Abstract
Diazirines are an attractive class of potential molecular tags for magnetic resonance imaging owing to their biocompatibility and ease of incorporation into a large variety of molecules. As recently reported, 15 N2 -diazirine can be hyperpolarized by the SABRE-SHEATH method, sustaining both singlet and magnetization states, thus offering a path to long-lived polarization storage. Herein, we show the generality of this approach by illustrating that the diazirine tag alone is sufficient for achieving excellent signal enhancements with long-lasting polarization. Our investigations reveal the critical role of Lewis basic additives, including water, on achieving SABRE-promoted hyperpolarization. The application of this strategy to a 15 N2 -diazirine-containing choline derivative demonstrates the potential of 15 N2 -diazirines as molecular imaging tags for biomedical applications.
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Affiliation(s)
- Kun Shen
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC, 27708, USA
| | - Angus W J Logan
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC, 27708, USA
| | - Johannes F P Colell
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC, 27708, USA
| | - Junu Bae
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC, 27708, USA
| | - Gerardo X Ortiz
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC, 27708, USA
| | - Thomas Theis
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC, 27708, USA
| | - Warren S Warren
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC, 27708, USA.,Department of Physics, Duke University, USA.,Department of Radiology, Duke University, USA
| | - Steven J Malcolmson
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC, 27708, USA
| | - Qiu Wang
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC, 27708, USA
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Donovan-Merkert BT, Rieger PH, Geiger WE. Reactions of Odd-Electron Cobaltacycles: Characterization of a Persistent 17-Electron Anionic Intermediate in Electron-Transfer-Catalyzed (ETC) Substitution Reactions. Organometallics 1999. [DOI: 10.1021/om990246g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bernadette T. Donovan-Merkert
- Departments of Chemistry, University of Vermont, Burlington, Vermont 05405, and Brown University, Providence, Rhode Island 02912
| | - Philip H. Rieger
- Departments of Chemistry, University of Vermont, Burlington, Vermont 05405, and Brown University, Providence, Rhode Island 02912
| | - William E. Geiger
- Departments of Chemistry, University of Vermont, Burlington, Vermont 05405, and Brown University, Providence, Rhode Island 02912
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Fu, Kisch H, van Eldik R. Competing Thermal and Photochemical Ligand Substitution Reactions of the Dimetallacycle (CO)4Mo(μ-PMD)2Mo(CO)4 (PMD = Pentamethylenediazirine). Mechanistic Information from Entering Nucleophile and Pressure Dependences. Organometallics 1997. [DOI: 10.1021/om961047p] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fu
- Institute for Inorganic Chemistry, University of Erlangen-Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Horst Kisch
- Institute for Inorganic Chemistry, University of Erlangen-Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Rudi van Eldik
- Institute for Inorganic Chemistry, University of Erlangen-Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany
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Kisch H, Rei ßer P, Knoch F. Übergangsmetallkomplexe von Diazenen, XXVII. Eisencarbonyl-induzierteo-Semidin-Umlagerung von 1-Alkyl-2-aryldiazenen. ACTA ACUST UNITED AC 1991. [DOI: 10.1002/cber.19911240525] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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