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1. (Article ID: 3912)
Olsson JD, Oscarson S
Synthesis of phosphorylated 3,4-branched trisaccharides corresponding to LPS inner core structures of Neisseria meningitidis and Haemophilus influenzae
Carbohydrate Research 345(10) (2010)
1331-1338
2-(N-Benzyloxycarbonyl)aminoethyl 7-O-acetyl-6-O-allyl-2-O-benzoyl-4-O-benzyl-3-O-chloroacetyl-l-glycero-alp ha-d-manno-heptopyranosyl-(1→3)-[2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl-(1→4)]-6,7-di-O-acetyl-2-O-benzyl-l-glycero-α-D-manno-heptopy ranoside, a spacer-equipped protected derivative of the common 3,4-branched diheptoside trisaccharide structure of the lipopolysaccharide core of Neisseria meningitidis and Haemophilus influenzae has been synthesized. The protecting group pattern installed allows regioselective introduction of phosphoethanolamine residues in the 3- and 6-position of the second heptose unit in accordance with native structures. From this intermediate the 3-and 6-monophosphoethanolamine as well as the non-phosphorylated deprotected trisaccharides have been synthesized to be used in evaluation of antibody binding specificity and in investigation of the substrate specificity of glycosyl transferases involved in the biosynthesis of LPS core structures.
lipopolysaccharides, oligosaccharide synthesis, phosphoethanolamine, Thioglycosides
NCBI PubMed ID: 20347067Publication DOI: 10.1016/j.carres.2010.03.006Journal NLM ID: 0043535Publisher: Elsevier
Correspondence: stefan.oscarson
ucd.ie
Institutions: Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, Stockholm, Sweden, Centre for Synthesis and Chemical Biology, UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
Methods: NMR, chemical synthesis
The publication contains the following compound(s):
- Compound ID: 9132
|
L-gro-a-D-manHepp-(1-2)-+ b-D-Glcp-(1-4)-+ EtN-(1---P---P---4)-+
| | |
EtN-(1--P--6)--L-gro-a-D-manHepp-(1-3)-L-gro-a-D-manHepp-(1-5)-a-Kdop-(2--/lipid A/ |
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Structure type: oligomer
Aglycon: lipid A
Compound class: core oligosaccharide
Reference(s) to other database(s): GTC:G98200IF
- Compound ID: 9133
|
b-D-Glcp-(1-4)-+
|
C1tBu-(1-2)-EtN-(1--P--3)--L-gro-a-D-manHepp-(1-3)-L-gro-a-D-manHepp-(1-1)-EtN |
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Structure type: oligomer
Compound class: core oligosaccharide
- Compound ID: 9134
|
b-D-Glcp-(1-4)-+
|
C1tBu-(1-2)-EtN-(1--P--6)--L-gro-a-D-manHepp-(1-3)-L-gro-a-D-manHepp-(1-1)-EtN |
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Structure type: oligomer
Compound class: core oligosaccharide
- Compound ID: 9135
|
b-D-Glcp-(1-4)-+
|
L-gro-a-D-manHepp-(1-3)-L-gro-a-D-manHepp-(1-1)-EtN |
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Structure type: oligomer
Compound class: core oligosaccharide
Reference(s) to other database(s): GlycomeDB:
9511
- Compound ID: 9131
|
a-D-GlcpNAc-(1-2)-+ b-D-Glcp-(1-4)-+ a-Kdop-(2-4)-+
| | |
/Variants 0/-L-gro-a-D-manHepp-(1-3)-L-gro-a-D-manHepp-(1-5)-a-Kdop-(2--/lipid A/
/Variants 0/ is:
EtN-(1--P--6)--
OR (exclusively)
EtN-(1--P--3)-- |
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Structure type: oligomer
Aglycon: lipid A
Compound class: core oligosaccharide
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