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Carroll-Poehls M, Jakeman DL. Synthesis of a novel fluorinated phosphonyl C-glycoside, (3-deoxy-3-fluoro-β-d-glucopyranosyl)methylphosphonate, a potential inhibitor of β-phosphoglucomutase. Carbohydr Res 2023; 534:108979. [PMID: 37931349 DOI: 10.1016/j.carres.2023.108979] [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: 08/25/2023] [Revised: 10/17/2023] [Accepted: 11/01/2023] [Indexed: 11/08/2023]
Abstract
β-phosphoglucomutase (βPGM) catalyzes the conversion of β-glucose 1-phosphate (βG1P) to glucose-6-phosphate (G6P), a universal source of cellular energy, in a two-step process. Transition state analogue (TSA) complexes formed from substrate analogues and a metal fluoride (MgF3- and AlF4-) enable analysis of each of these enzymatic steps independently. Novel substrate analogues incorporating fluorine offer opportunities to interrogate the enzyme mechanism using 19F NMR spectroscopy. Herein, the synthesis of a novel fluorinated phosphonyl C-glycoside (3-deoxy-3-fluoro-β-d-glucopyranosyl)methylphosphonate (1), in 12 steps (0.85 % overall yield) is disclosed. A four-stage synthetic strategy was employed, involving: 1) fluorine addition to the monosaccharide, 2) selective anomeric deprotection, 3) phosphonylation of the anomeric centre, and 4) global deprotection. Analysis of βPGM and 1 will be reported in due course.
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Affiliation(s)
| | - David L Jakeman
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, B3H 4R2, Canada; College of Pharmacy, Dalhousie University, Halifax, Nova Scotia, B3H 4R2, Canada.
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Zhu JS, Stiers KM, Winter SM, Garcia AD, Versini AF, Beamer LJ, Jakeman DL. Synthesis, Derivatization, and Structural Analysis of Phosphorylated Mono-, Di-, and Trifluorinated d-Gluco-heptuloses by Glucokinase: Tunable Phosphoglucomutase Inhibition. ACS OMEGA 2019; 4:7029-7037. [PMID: 31179410 PMCID: PMC6547622 DOI: 10.1021/acsomega.9b00008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 04/08/2019] [Indexed: 05/16/2023]
Abstract
Glucokinase phosphorylated a series of C-1 fluorinated α-d-gluco-heptuloses. These phosphorylated products were discovered to be inhibitors of α-phosphomannomutase/phosphoglucomutase (αPMM/PGM) and β-phosphoglucomutase (βPGM). Inhibition potency with both mutases inversely correlated to the degree of fluorination. Structural analysis with αPMM demonstrated the inhibitor binding to the active site, with the phosphate in the phosphate binding site and the anomeric hydroxyl directed to the catalytic site.
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Affiliation(s)
- Jian-She Zhu
- College
of Pharmacy, Dalhousie University, 5968 College Street, Halifax, Nova Scotia B3H 4R2, Canada
| | - Kyle M. Stiers
- Biochemistry
Department, University of Missouri, 117 Schweitzer Hall, Columbia, Missouri 65211, United States
| | - Sherany M. Winter
- College
of Pharmacy, Dalhousie University, 5968 College Street, Halifax, Nova Scotia B3H 4R2, Canada
- Department
of Chemistry, Hogeschool Leiden (UAS Leiden), Zernikedreef 11, CK Leiden 2333, The Netherlands
| | - Anthony D. Garcia
- College
of Pharmacy, Dalhousie University, 5968 College Street, Halifax, Nova Scotia B3H 4R2, Canada
- École
Nationale Supérieure de Chimie de Rennes, 11 Allée de Beaulieu, CS 50837, Rennes Cedex 7 35708, France
| | - Antoine F. Versini
- College
of Pharmacy, Dalhousie University, 5968 College Street, Halifax, Nova Scotia B3H 4R2, Canada
- École
Supérieure de Physique et de Chimie Industrielles de la Ville
de Paris, 10 rue Vauquelin, Paris 75005, France
| | - Lesa J. Beamer
- College
of Pharmacy, Dalhousie University, 5968 College Street, Halifax, Nova Scotia B3H 4R2, Canada
- E-mail: (L.J.B.)
| | - David L. Jakeman
- College
of Pharmacy, Dalhousie University, 5968 College Street, Halifax, Nova Scotia B3H 4R2, Canada
- Department
of Chemistry, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
- E-mail: (D.L.J.)
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