208644-75-1

Basic information

• Product Name: phenyl 2,3-di-O-benzoyl-4,6-di-O-benzylidene-1-thio-β-D-galactopyranoside
• Synonyms: phenyl 2,3-di-O-benzoyl-4,6-di-O-benzylidene-1-thio-β-D-galactopyranoside
• CAS NO: 208644-75-1
• Molecular Weight: 568.647
• Mol File: 208644-75-1.mol
• Article Data: 6

Chemical Properties

• Melting Point: 162-167 °C
• CAS DataBase Reference: phenyl 2,3-di-O-benzoyl-4,6-di-O-benzylidene-1-thio-β-D-galactopyranoside(CAS DataBase Reference)
• NIST Chemistry Reference: phenyl 2,3-di-O-benzoyl-4,6-di-O-benzylidene-1-thio-β-D-galactopyranoside(208644-75-1)
• EPA Substance Registry System: phenyl 2,3-di-O-benzoyl-4,6-di-O-benzylidene-1-thio-β-D-galactopyranoside(208644-75-1)

Safety Data

• Hazardous Substances Data: 208644-75-1(Hazardous Substances Data)

Usage

Description

Phenyl 2,3-di-O-benzoyl-4,6-di-O-benzylidene-1-thio-β-D-galactopyranoside is a protected galactopyranoside derivative with various functional groups that play a crucial role in its chemical properties and applications. It features a β-phenylthio group, 2 and 3 benzoyl groups, and 4,6-benzylidine protecting groups, which contribute to its stability and reactivity in chemical reactions.

Uses

Used in Pharmaceutical Industry:
Phenyl 2,3-di-O-benzoyl-4,6-di-O-benzylidene-1-thio-β-D-galactopyranoside is used as a building block for the synthesis of complex carbohydrates. Its unique structure and functional groups make it a valuable component in the development of novel pharmaceutical compounds, particularly those targeting carbohydrate-based drug delivery systems and therapeutic agents.
Used in Chemical Synthesis:
In the field of organic chemistry, phenyl 2,3-di-O-benzoyl-4,6-di-O-benzylidene-1-thio-β-D-galactopyranoside serves as an essential intermediate for the synthesis of various complex carbohydrate structures. Its protecting groups facilitate controlled deprotection and functionalization reactions, enabling the creation of diverse carbohydrate derivatives with specific properties and applications.
Used in Research and Development:
Phenyl 2,3-di-O-benzoyl-4,6-di-O-benzylidene-1-thio-β-D-galactopyranoside is also utilized in research and development for studying the structure, properties, and reactivity of complex carbohydrates. Its unique functional groups provide insights into the interactions between carbohydrates and other biomolecules, which can be crucial for understanding carbohydrate-based biological processes and developing new therapeutic strategies.

Upstream product

• 16758-34-2 1-thiophenyl-β-D-galactopyranoside 
• 1125-88-8 benzaldehyde dimethyl acetal 
• 108-98-5 thiophenol 
• 25878-60-8 D-galactose pentaacetate 
• 13992-16-0 1-deoxy-1-(phenylthio)-2,3,4,6-tetra-O-acetyl-β-D-galactopyranose 
• 71676-30-7 phenyl 4,6-di-O-benzylidene-1-thio-β-D-galactopyranoside 
• 98-88-4 benzoyl chloride 

Downstream Products

• 246513-03-1 phenyl 2,3-di-O-benzoyl-6-O-benzyl-1-thio-β-D-galactopyranoside 
• 208644-74-0 methyl 2,3-di-O-benzoyl-4,6-O-((R)-1-methoxycarbonylethylidene)-β-D-galactopyranosyl-(1->4)-3,6-di-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl-(1->3) 2,4-di-O-benzyl-β-L-fucopyranoside 
• 138857-83-7 phenyl 4,6-O-[1-(R)-(methoxycarbonyl)ethylidene]-2,3-di-O-benzoyl-1-thio-β-D-galactopyranoside 
• 138857-53-1 phenyl 2,3-di-O-benzoyl-1-thio-β-D-galactoypyranoside 

Relevant articles and documents

Towards a Synthetic Strategy for the Ten Canonical Carrageenan Oligosaccharides – Synthesis of a Protected γ-Carrageenan Tetrasaccharide

Herein, we report a synthetic strategy aiming at synthesizing the ten canonical carrageenan oligosaccharides from one single precursor. The key β-(1→4)-linked disaccharide was synthesized from commercially available galactose pentaacetate. The notoriously difficult formation of β-(1→4)-d-galactan linkages was successfully optimized on the differentially substituted monosaccharides to afford the desired disaccharide in 55 % yield. Following a convergent strategy, two disaccharides were then glycosylated to form the fully protected α-(1→4)-linked tetrasaccharide backbone of the carrageenans. The careful selection of protecting groups provides the opportunity to access all ten carrageenan substructures identified in polysaccharides isolated from red algae. Here, we demonstrate how one such target oligosaccharide can be obtained in a protected form.

Total synthesis of LewisX using a late-stage crystalline intermediate

Abstract Herein, we report on a highly efficient synthesis of a crystalline protected LewisX trisaccharide that was converted to LewisX following global deprotection. The trisaccharide was prepared in a highly convergent synthesis (seven steps, longest linear sequence) and in a 38% overall yield using a strategy that involved the regioselective glycosylation of a GlcNAc acceptor with a galactose thioglycoside donor, followed by fucosylation of the remaining free GlcNAc hydroxyl as key steps. The core trisaccharide also has the potential to be converted to other members of the Type-2 Lewis family of antigens due to the orthogonal nature of the protecting groups employed.

Nickel(II) chloride-mediated regioselective benzylation and benzoylation of diequatorial vicinal diols

Ni(II)-chelates of monosaccharide vicinal diols were found to be useful intermediates in regioselective monobenzylation and monobenzoylation. It was observed that the substitution occurs exclusively at the position adjacent to the axially oriented substit