160243-08-3

Upstream product

• 138343-56-3 ethyl 2-O-benzyl-1-thio-β-L-fucopyranoside 
• 707-07-3 orthobenzoic acid trimethyl ester 
• 100-39-0 benzyl bromide 

Downstream Products

• 160243-09-4 ethyl 4-O-benzoyl-2-O-benzyl-3-O-chloroacetyl-1-thio-β-L-fucopyranoside 
• 887478-25-3 ethyl 3-O-acetyl-4-O-benzoyl-2-O-benzyl-1-thio-β-L-fucopyranoside 
• 1240385-90-3 ethyl 3-O-acetyl-4-O-benzoyl-2-O-benzyl-α-L-fucopyranosyl-(1->3)-4-O-benzoyl-α-L-fucopyranoside 
• 1290036-18-8 ethyl 4-O-benzoyl-2-O-benzyl-3-O-chloroacetyl-α-L-fucopyranosyl-(1->3)-4-O-benzoyl-2-O-benzyl-1-thio-β-L-fucopyranoside 
• 887478-26-4 2-(trimethylsilyl)ethyl 3-O-acetyl-4-O-benzoyl-2-O-benzyl-α-L-fucopyranolyl-(1->4)-2,3-di-O-benzyl-6-O-tert-butyldiphenylsilyl-β-D-glucopyranoside 
• 887478-27-5 2-(trimethylsilyl)ethyl 2-O-benzyl-α-L-fucopyranolyl-(1->4)-2,3-di-O-benzyl-6-O-tert-butyldiphenylsilyl-β-D-glucopyranoside 

Relevant academic research and scientific papers

Convenient synthesis of sulfated oligofucosides

Two types of sulfated octyl tetra- to octaoligofucosides with different sulfation patterns were synthesized employing a combination of stepwise elongation and convergent strategies in which trichloroacetimidates and thioglycosides were selected as the glycosyl donors.

Synthesis of tetrasaccharide repeating unit of the O-antigen from enterohemorrhagic Escherichia coli O157 in the form of its 2-(trimethylsilyl) ethyl glycoside

Two α-linked disaccharide derivatives, ethyl 3,4,6-tri-O-acetyl-2- azido-2-deoxy-α-D-galactopyranosyl-(1 → 2)-4-azido-3-O-benzyl-4,6- dideoxy-1-thio-α-D-mannopyranoside (10) and 2-(trimethylsilyl)ethyl 3-O-acetyl-4-O-benzoyl-2-O-benzyl-α-L-fucopyranosyl-(

Synthesis of the 5-aminopentyl glycoside of β-D-Galp-(1->4)-β-D-GlcpNAc-(1->3)-L-Fucp and fragments thereof related to glycopeptides of human Christmas factor and the marine sponge Microciona prolifera

The marine sponge Microciona prolifera and human coagulation factor IX (Christmas factor)-related mono- to tri-saccharide 5-aminopentyl glycosides β-D-Galp-R (5), β-D-GlcpNAc-R (16), β-D-Galp-(1->4)-β-D-GlcpNAc-R (26), β-D-GlcpNAc-(1->3)-β-L-Fucp-R (39), β-D-GlcpNAc-(1->3)-α-L-Fucp-R (43), β-D-Galp-(1->4)-β-D-GlcpNAc-(1->3)-β-L-Fucp-R (45), and β-D-Galp-(1->4)-β-D-GlcpNAc-(1->3)-α-L-Fucp-R (47), where R is a 5-aminopentyloxy spacer moiety, which allowed the construction of glycoconjugates, were prepared.Thus 3,4,6-tri-O-acetyl-2-deoxy-2-(2,2,2-trichloroethoxycarbonylamino)-α-D-glucopyranosyl trichloroacetimidate (10) and 1,3,4,6-tetra-O-acetyl-2-chloroacetamido-2-deoxy-β-D-glucopyranose (13) were condensed with N-Z-protected 5-aminopentanol (2) followed by conversion of the coupling products into the corresponding N-acetylglucosamine derivatives, to give compound 16 after deblocking.Similarly, the donors 10 and 13 were coupled to position 3 of suitably protected aminopentyl β- (32) and α- (37) -L-fucopyranosides, to give the disaccharides 39 and 43, respectively.Starting from lactose, O-(2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl)-(1->4)-3,6-di-O-benzoyl-2-deoxy-2-(2,2,2-trichloroethoxycarbonylamino)-α-D-glucopyranosyl trichloroacetimidate (23) was prepared and used as an efficient disaccharide donor for the construction of ligand 26 from 2 and of the trisaccharide ligands 45 and 47 from fucosides 32 and 37, respectively.Key words: Christmas factor, human; Coagulation factor IX; Human marine sponge Microciona prolifera; Aminopentyl glycoside