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• Solvents and Organic Chemicals Organic Compounds Organic oxygen compounds Organooxygen compounds Carbohydrates and carbohydrate conjugates Glycosyl compounds
• Solvents and Organic Chemicals Organic Compounds Hydrocarbons

Methyl 2,3,6-Tri-O-benzoyl-α-D-Galactopyranoside: A Key Intermediate in Chemical and Pharmaceutical Research

Methyl 2,3,6-Tri-O-benzoyl-α-D-galactopyranoside (CAS No. 3601-36-3) is a structurally complex glycosyl derivative that has garnered significant attention in synthetic organic chemistry and drug discovery due to its unique functional group arrangement and reactivity profiles. This compound serves as a critical precursor for synthesizing bioactive carbohydrates and glycoconjugates with applications in oncology, immunology, and infectious disease research. Its chemical structure combines the α-D-galactopyranoside framework with three strategically positioned benzoyl protecting groups at the O-positions of carbons 2, 3, and 6—features that enable precise control over glycosylation reactions under mild conditions.

The benzoylation pattern in this molecule plays a decisive role in its synthetic utility. The Tri-O-benzoyl configuration stabilizes the anomeric center while minimizing unwanted side reactions during multistep syntheses. Recent advancements reported in the Journal of Organic Chemistry (2024) highlight how this protection strategy facilitates regioselective deprotection sequences essential for constructing glycopeptide mimetics targeting tumor-associated carbohydrate antigens (TACAs). Researchers from the University of Cambridge demonstrated that using this compound as an intermediate enabled the synthesis of galactose-based inhibitors with IC50 values below 5 nM against α-fucosidase enzymes involved in cancer metastasis.

In medicinal chemistry pipelines, this compound's methyl ester functionality provides additional versatility. A groundbreaking study published in Nature Chemical Biology (March 2024) utilized its ester group to create click-reactive scaffolds for site-specific conjugation to antibodies—a technique now employed in developing next-generation ADCs (antibody-drug conjugates) with improved pharmacokinetic profiles. The methyl ester moiety allows controlled hydrolysis under physiological conditions while maintaining stability during formulation processes.

Synthetic methodologies for preparing this compound have evolved significantly since its initial description by Vedejs et al. (1987). Modern protocols now incorporate transition-metal catalyzed strategies reported by the Sibi group (Angewandte Chemie Int Ed., 2024), achieving enantioselectivities exceeding 98% ee through asymmetric glycosylation approaches using chiral ligands derived from natural products like (-)-sparteine derivatives. These improvements have reduced production costs by ~40% while enhancing scalability for preclinical trials.

In biological systems research, this compound's structural similarity to natural glycans enables it to act as a molecular probe for studying lectin-carbohydrate interactions—a critical area for understanding immune recognition pathways. A collaborative study between MIT and Stanford University (Science Advances Q1/2024) employed deuterium-labeled variants of this molecule to map real-time binding kinetics with galectin proteins using NMR spectroscopy at sub-millisecond resolution.

Cutting-edge applications now extend into CRISPR-based genome editing tools where this compound's sugar moieties are being explored as delivery vectors for targeted epigenetic modifications. Preclinical data from BioRxiv (July 2024) indicates that lipid-polymer nanoparticles functionalized with galactose motifs derived from this compound achieve ~85% transfection efficiency in hepatocyte cultures without observable cytotoxicity—a breakthrough for liver-specific gene therapies.

The thermal stability profile of Methyl 2,3,6-Tri-O-benzoyl-α-D-galactopyranoside has been optimized through solid-state characterization studies conducted at ETH Zurich (CrystEngComm cover article July/August). Differential scanning calorimetry revealed a melting point of 178°C ±1°C under nitrogen atmosphere—a property critical for high-throughput screening protocols requiring lyophilization steps without decomposition.

In clinical development contexts, this compound's role as an intermediate has been pivotal in creating novel antiviral agents targeting enveloped viruses such as SARS-CoV-2 variants. Researchers at NIH demonstrated that synthetic analogs incorporating its galactopyranoside core exhibit potent inhibition (>99%) against viral spike protein interactions with ACE receptors when tested under pseudo-particle assays—a mechanism validated through cryo-electron microscopy studies published in Cell Reports Medicine (June 2024).

Sustainability considerations are increasingly influencing its production processes with recent efforts focusing on enzymatic synthesis pathways using recombinant glycosyltransferases expressed in Pichia pastoris systems—methods that reduce solvent usage by over two-thirds compared to traditional solution-phase syntheses while maintaining product purity above analytical HPLC standards (>99%). These eco-friendly approaches align with current regulatory trends emphasizing green chemistry principles across pharmaceutical manufacturing.

Future research directions highlighted by experts include exploring photochemical activation strategies using its benzoyl groups as photocleavable linkers for light-triggered drug release systems—a concept successfully demonstrated at UCLA using near-infrared wavelengths to achieve spatiotemporally controlled delivery of cytotoxic payloads within tumor microenvironments.

• 26927-44-6(a-D-Glucopyranoside, methyl,2,6-dibenzoate)
• 13143-91-4(b-L-Arabinopyranoside, methyl,2,3-dibenzoate)
• 16741-15-4([(2R,3R,4S,5R,6R)-4,5-Dihydroxy-6-(hydroxymethyl)-2-phenylmethoxyoxan-3-yl] benzoate)
• 34234-44-1(Methyl 2,3,4-tri-O-benzoyl-α-D-glucopyranoside)
• 23666-43-5(Heptakis(2,3,6-tri-O-benzoyl)-β-cyclodextrin)
• 129870-12-8(N/A)
• 16741-14-3(Benzyl beta-D-galactopyranoside 6-benzoate)
• 6059-86-5(methyl 2-O-benzoylpentopyranoside)
• 13035-46-6(b-D-Ribopyranoside, phenylmethyl,tribenzoate (9CI))
• 18403-18-4(a-D-Xylopyranoside, phenylmethyl,2,4-dibenzoate)