113765-22-3

Upstream product

• 74-88-4 methyl iodide 
• 92516-88-6 allyl 4,6-O-isopropylidene-β-D-galactopyranoside 
• 117780-18-4 allyl 2,3-di-O-benzyl-4-O-chloroacetyl-β-D-galactopyranosiduronic acid 
• 117780-16-2 allyl 2,3-di-O-benzyl-4-O-chloroacetyl-β-D-galactopyranoside 
• 117780-15-1 allyl 2,3-di-O-benzyl-4,6-O-isopropylidene-β-D-galactopyranoside 
• 97817-99-7 allyl 2,3-di-Ο-benzyl-β-D-galactopyranoside 
• 100-39-0 benzyl bromide 
• 2595-07-5 allyl β-D-galactopyranoside 
• 30628-07-0 1,2,3,4-tetra-O-acetyl-α-D-galactopyranosiduronic acid, methyl ester 
• 56768-32-2 1-bromo-2,3,4-tri-O-acetyl-α-D-galactopyranuronic acid methyl ester 
• 311797-06-5 methyl (allyl 2-O-benzyl-3,4-O-isopropylidene-β-D-galactopyranosid)uronate 
• 147221-64-5 methyl (allyl 3,4-O-isopropylidene-β-D-galactopyranosid)uronate 
• 95722-13-7 1,2,3,4-tetra-O-acetyl-α-D-galactopyranosiduronic acid 
• 130506-36-4 methyl (allyl 2,3,4-tri-O-acetyl-β-D-galactopyranosid)uronate 

Downstream Products

• 1044740-69-3 methyl (2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl)-(1→4)-(2-O-acetyl-3-O-benzyl-α-L-rhamnopyranosyl)-(1→4)-(allyl 2,3-di-O-benzyl-β-D-galactopyranosid)uronate 
• 311797-26-9 methyl (methyl 4-O-acetyl-2,3-di-O-benzyl-α-D-galactopyranosyluronate)-(1->4)-(allyl 2,3-di-O-benzyl-β-D-galactopyranosid)uronate 
• 406460-74-0 methyl (4-O-benzoyl-3-O-benzyl-2-O-acetyl-α-L-rhamnopyranosyl)-(1->4)-2,3-di-O-benzyl-α-D-galactopyranuronate 
• 311797-25-8 methyl (methyl 2,3-di-O-benzyl-α-D-galactopyranosyluronate)-(1->4)-(allyl 2,3-di-O-benzyl-β-D-galactopyranosid)uronate 
• 311350-24-0 methyl (2-O-acetyl-4-O-benzoyl-3-O-benzyl-α-L-rhamnopyranosyl)-(1->4)-(allyl 2,3-di-O-benzyl-β-D-galactopyranosid)uronate 

Relevant academic research and scientific papers

Synthesis of oligosaccharide fragments of the rhamnogalacturonan of Nerium indicum

Three trisaccharides, one pentasaccharide, and one heptasaccharide, namely α-D-GalA-(1→2)-α-L-Rha-(1→4)-β-D-GalA-OC 3H7 (1), α-L-Rha-(1→4)-α-D-GalA- (1→4)-β-D-GalA-OC3H7 (2), α-D-GalA- (1→4)-α-DGalA-(1→2)-α-L-Rh

Efficient synthesis of building blocks for branched rhamnogalacturonan i fragments

Starting from allyl 2-O-acetyl-3-O-benzyl-α-l-rhamnopyranoside (3), allyl (2,3,4,6-tetra-O-benzoyl-β-d-galactopyranosyl)-(1→4)-2-O-acetyl- 3-O-benzyl-α-l-rhamnopyranoside (5) was synthesized under Helferich conditions. Module 5 was converted to 2,3,4,6-te

Synthesis of homogalacturonan fragments

Glycosylation of the D-galacturonic acid ester derivatives 15 and 17, which are prepared directly from D-galacturonic acid, with the thioglycosides 28 and 32, derived from the same sugar, provides α(1→4)-linked dimers. The formation of the glycosidic linkage between the galacturonic acid moieties is best achieved by iodonium di-sym-collidine perchlorate promotion. Thus, the 4'-O-p-methoxybenzyl dimer 38 can be obtained in 64% yield. Partial deprotection of the 4'-O-position provided the glycosyl acceptor 36, which was coupled with the donor 32 to yield the a(1''→4')-linked trimer 39 (48%). Approximately 8% of the β(1''→4')-coupled isomer was observed in the 13C NMR spectrum of the reaction mixture.