1
|
Beswick L, Dimitriou E, Ahmadipour S, Zafar A, Rejzek M, Reynisson J, Field RA, Miller GJ. Inhibition of the GDP-d-Mannose Dehydrogenase from Pseudomonas aeruginosa Using Targeted Sugar Nucleotide Probes. ACS Chem Biol 2020; 15:3086-3092. [PMID: 33237714 DOI: 10.1021/acschembio.0c00426] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Sufferers of cystic fibrosis are at extremely high risk for contracting chronic lung infections. Over their lifetime, one bacterial strain in particular, Pseudomonas aeruginosa, becomes the dominant pathogen. Bacterial strains incur loss-of-function mutations in the mucA gene that lead to a mucoid conversion, resulting in copious secretion of the exopolysaccharide alginate. Strategies that stop the production of alginate in mucoid Pseudomonas aeruginosa infections are therefore of paramount importance. To aid in this, a series of sugar nucleotide tools to probe an enzyme critical to alginate biosynthesis, guanosine diphosphate mannose dehydrogenase (GMD), have been developed. GMD catalyzes the irreversible formation of the alginate building block, guanosine diphosphate mannuronic acid. Using a chemoenzymatic strategy, we accessed a series of modified sugar nucleotides, identifying a C6-amide derivative of guanosine diphosphate mannose as a micromolar inhibitor of GMD. This discovery provides a framework for wider inhibition strategies against GMD to be developed.
Collapse
Affiliation(s)
- Laura Beswick
- Lennard-Jones Laboratory, School of Chemical and Physical Sciences, Keele University, Keele, Staffordshire ST5 5BG, United Kingdom
| | - Eleni Dimitriou
- Lennard-Jones Laboratory, School of Chemical and Physical Sciences, Keele University, Keele, Staffordshire ST5 5BG, United Kingdom
| | - Sanaz Ahmadipour
- Department of Chemistry and Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Ayesha Zafar
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, 1142 Auckland, New Zealand
| | - Martin Rejzek
- Department of Molecular Microbiology, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdom
| | - Jóhannes Reynisson
- Hornbeam Building, School of Pharmacy and Bioengineering, Keele University, Keele, Staffordshire ST5 5BG, United Kingdom
| | - Robert A Field
- Department of Chemistry and Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Gavin J Miller
- Lennard-Jones Laboratory, School of Chemical and Physical Sciences, Keele University, Keele, Staffordshire ST5 5BG, United Kingdom
| |
Collapse
|
2
|
Sheerin K, Guazzelli L, Oscarson S. Large scale synthesis and regioselective protection schemes of ethyl 2-azido-2-deoxy-1-thio-α-d-cellobioside for preparation of heparin thiodisaccharide building blocks. Carbohydr Res 2017; 440-441:16-31. [PMID: 28167367 DOI: 10.1016/j.carres.2017.01.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 01/10/2017] [Accepted: 01/10/2017] [Indexed: 02/04/2023]
Abstract
Crystalline acetylated ethyl 2-azido-2-deoxy-1-thio-α-d-cellobioside has been prepared on a multigram scale from cellobiose in an overall yield of 23% with no chromatography required and converted after deacetylation into the 4',6'-O-benzylidene and 4',6'-O-benzylidene-6-O-TBDMS protected derivatives. Applying a number of regioselective benzylation methods on these gave access to a variety of regioselectively protected derivatives, both mono-ols (2'- and 3-OH), diols (2',6-, 2',3-, and 3,6-di-OH), and triols (2',3,6- and 2',3',3-tri-OH). A number of these derivatives were further processed by benzoylation followed by removal or opening of the benzylidene acetal and selective oxidation of the exposed primary alcohol to give heparin building block intermediates comprising a range of possible sulfation patterns.
Collapse
Affiliation(s)
- Kevin Sheerin
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Lorenzo Guazzelli
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Stefan Oscarson
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland.
| |
Collapse
|
3
|
Buda S, Nawój M, Gołębiowska P, Dyduch K, Michalak A, Mlynarski J. Application of 2-Substituted Benzyl Groups in Stereoselective Glycosylation. J Org Chem 2015; 80:770-80. [DOI: 10.1021/jo502186f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Szymon Buda
- Faculty
of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Krakow, Poland
| | - Mirosław Nawój
- Faculty
of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Krakow, Poland
| | - Patrycja Gołębiowska
- Faculty
of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Krakow, Poland
| | - Karol Dyduch
- Faculty
of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Krakow, Poland
| | - Artur Michalak
- Faculty
of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Krakow, Poland
| | - Jacek Mlynarski
- Faculty
of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Krakow, Poland
| |
Collapse
|
4
|
An improved method for the synthesis of protected glycosyl fluorides from thioglycosides using N,N-diethylaminosulfur trifluoride (DAST). Carbohydr Res 2012; 359:81-91. [DOI: 10.1016/j.carres.2012.07.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2012] [Revised: 07/01/2012] [Accepted: 07/04/2012] [Indexed: 11/22/2022]
|
5
|
Crich D, Hu T, Cai F. Does neighboring group participation by non-vicinal esters play a role in glycosylation reactions? Effective probes for the detection of bridging intermediates. J Org Chem 2008; 73:8942-53. [PMID: 18939876 PMCID: PMC2669227 DOI: 10.1021/jo801630m] [Citation(s) in RCA: 108] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Neighboring group participation in glycopyranosylation reactions is probed for esters at the 3-O-axial and -equatorial, 4-O-axial and -equatorial, and 6-O-sites of a range of donors through the use tert-butoxycarbonyl esters. The anticipated intermediate cyclic dioxanyl cation is interrupted for the axial 3-O-derivative, leading to the formation of a 1,3-O-cyclic carbonate ester, with loss of a tert-butyl cation, providing convincing evidence of participation by esters at that position. However, no evidence was found for such a fragmentation of carbonate esters at the 3-O-equatorial, 4-O-axial and -equatorial, and 6-O positions, indicating that neighboring group participation from those sites does not occur under typical glycosylation conditions. Further probes employing a 4-O-(2-carboxy)benzoate ester and a 4-O-(4-methoxybenzoate) ester, the latter in conjunction with an (18)O quench designed to detect bridging intermediates, also failed to provide evidence for participation by 4-O-esters in galactopyranosylation.
Collapse
Affiliation(s)
- David Crich
- Chemistry Department, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, USA.
| | | | | |
Collapse
|
6
|
Shioiri Y, Suzuki K, Kanie O. Mechanism of a gas-phase dissociation reaction of 4-aminobutyl glycosides under CID MS/MS conditions. JOURNAL OF MASS SPECTROMETRY : JMS 2008; 43:1132-1139. [PMID: 18324614 DOI: 10.1002/jms.1397] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The assembly of monosaccharides during the synthetic process of glycan structures is responsible for the diversity of this family of molecules. Because of the complexity of the glycan structure, synthesis of oligosaccharides and structural analysis have been difficult tasks. During efforts to develop glycosides carrying an aglycon that can be used in both functional and structural investigations, we found that 4-aminobutyl glycosides fulfill these criteria. We also observed that the glycosidic linkage underwent an interesting dissociation reaction under collision-induced MS/MS, and that the reaction product is very useful in structural investigation based on mass spectrometry, especially since it provides information regarding anomeric configurations. Despite its importance, the reaction mechanism of the dissociation is not fully understood. For this reason, we studied the mechanism by synthesizing possible products and used them in detailed analyses based on energy-resolved mass spectrometry where the energy dependence of the dissociation reaction was analyzed under collision-induced dissociation conditions. As a result of spectral match with one of synthesized reference compounds, it was suggested that the dissociation reaction to generate a C-ion species and a pyrrolidine took place through a five-membered transition state in two-step reaction sequence.
Collapse
Affiliation(s)
- Yuki Shioiri
- Tokyo Institute of Technology, Graduate School of Bioscience and Biotechnology, 4529 Nagatsuta-cho, Midori-ku, Yokohama, Japan
| | | | | |
Collapse
|
7
|
Li Z, Gildersleeve JC. An armed-disarmed approach for blocking aglycon transfer of thioglycosides. Tetrahedron Lett 2007; 48:559-562. [PMID: 19043616 DOI: 10.1016/j.tetlet.2006.11.126] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Thioglycosides are used frequently as glycosyl donors and as mimetics of O-glycosides. While being very useful, thioglycosides are prone to a detrimental side reaction referred to as aglycon transfer. In this paper, it is shown that aglycon transfer can be blocked by matching thioglycoside-containing acceptors with more armed glycosyl donors.
Collapse
Affiliation(s)
- Zhitao Li
- Laboratory of Medicinal Chemistry, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702 USA
| | | |
Collapse
|
8
|
Ako T, Daikoku S, Ohtsuka I, Kato R, Kanie O. A Method of Orthogonal Oligosaccharide Synthesis Leading to a Combinatorial Library Based on Stationary Solid-Phase Reaction. Chem Asian J 2006; 1:798-813. [PMID: 17441123 DOI: 10.1002/asia.200600210] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A new, efficient synthesis of oligosaccharides, which involves solid-phase reactions without mixing in combination with an orthogonal-glycosylation strategy, is described. Despite a great deal of biological interest, the combinatorial chemistry of oligosaccharides is an extremely difficult subject. The problems include 1) lengthy synthetic protocols required for the synthesis and 2) the variety of glycosylation conditions necessary for individual reactions. These issues were addressed and solved by using the orthogonal-coupling protocol and the application of a temperature gradient to provide appropriate conditions for individual reactions. Furthermore, we succeeded in carrying out solid-phase reactions with neither mechanical mixing nor flow. In this report, the synthesis of a series of trisaccharides, namely, alpha/beta-L-Fuc-(1-->6)-alpha/beta-D-Gal-(1-->2/3/4/6)-alpha/beta-D-Glc-octyl, is reported to demonstrate the eligibility of the synthetic method in combinatorial chemistry.
Collapse
Affiliation(s)
- Takuro Ako
- Mitsubishi Kagaku Institute of Life Sciences, 11 Minamiooya, Machida-shi, Tokyo 194-8511, Japan
| | | | | | | | | |
Collapse
|
9
|
Ohtsuka I, Ako T, Kato R, Daikoku S, Koroghi S, Kanemitsu T, Kanie O. Synthesis of a library of fucopyranosyl-galactopyranosides consisting of a complete set of anomeric configurations and linkage positions. Carbohydr Res 2006; 341:1476-87. [PMID: 16643870 DOI: 10.1016/j.carres.2006.03.040] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2006] [Revised: 03/13/2006] [Accepted: 03/27/2006] [Indexed: 10/24/2022]
Abstract
A library composed of a complete set of fucopyranosyl-galactopyranosides was synthesized. A perbenzylated phenylthio fucopyranoside and a series of tri-O-benzyl-galactopyranosyl fluorides having single hydroxyl groups at the 2-, 3-, 4-, and 6-positions were used as the glycosyl donor and glycosyl acceptors, respectively. The chosen set of functionalities at the anomeric centers enabled rapid access to the oligosaccharides based on chemoselective activation. The first coupling reaction was achieved by the action of dimethyl(methylthio)sulfonium trifluoromethanesulfonate (DMTST). The resulting disaccharide fluoride was readily activated by hafnocene bistrifluoromethanesulfonate [Cp2Hf(OTf)2] and glycosidated with n-octanol.
Collapse
Affiliation(s)
- Isao Ohtsuka
- Mitsubishi Kagaku Institute of Life Sciences (MITILS), 11 Minamiooya, Machida-shi, Tokyo 194-8511, Japan
| | | | | | | | | | | | | |
Collapse
|
10
|
Kanie O, Ohtsuka I, Ako T, Daikoku S, Kanie Y, Kato R. Orthogonal Glycosylation Reactions on Solid Phase and Synthesis of a Library Consisting of a Complete Set of Fucosyl Galactose Isomers. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200600433] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
11
|
Kanie O, Ohtsuka I, Ako T, Daikoku S, Kanie Y, Kato R. Orthogonal Glycosylation Reactions on Solid Phase and Synthesis of a Library Consisting of a Complete Set of Fucosyl Galactose Isomers. Angew Chem Int Ed Engl 2006; 45:3851-4. [PMID: 16646100 DOI: 10.1002/anie.200600433] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Osamu Kanie
- Mitsubishi Kagaku Institute of Life Sciences (MITILS), 11 Minamiooya, Machida-shi, Tokyo 194-8511, Japan.
| | | | | | | | | | | |
Collapse
|