604-68-2

Usage

Uses

Used in Pharmaceutical Industry:
Glucose pentaacetate is used as a pharmaceutical agent for its ability to stimulate insulin release in rat pancreatic islets. Specifically, the α-D-glucose pentaacetate isomer has been found to cause an immediate increase in insulin output, which can be beneficial for the treatment and management of diabetes.
Additionally, the β-anomer of D-glucose pentaacetate initially transiently inhibits insulin release, followed by a secondary rise in the secretory rate. This dual action could potentially be utilized in the development of novel therapies for diabetes, where precise control of insulin release is crucial.
Used in Chemical Research:
As a modified form of glucose, glucose pentaacetate can be used in chemical research for studying the effects of structural modifications on the properties and reactivity of carbohydrates. This can lead to the development of new compounds and materials with specific applications in various industries.
Used in Drug Delivery Systems:
Similar to gallotannin, glucose pentaacetate could potentially be employed in the development of drug delivery systems. Its unique chemical properties may allow for the design of novel carriers or enhancers for the delivery of therapeutic agents, improving their bioavailability and efficacy.

Purification Methods

Crystallise it from MeOH, EtOH or three recrystallisations from 95% EtOH. [Wolfrom & Thompson Methods in Carbohydrate Chemistry II 212 1963, Academic Press, Beilstein 17/7 V 318.]

InChI:InChI=1/C16H22O11/c1-7(17)22-6-12-13(23-8(2)18)14(24-9(3)19)15(25-10(4)20)16(27-12)26-11(5)21/h12-16H,6H2,1-5H3/t12?,13-,14+,15+,16+/m1/s1

Upstream product

• 7322-31-8 β-D-mannose 
• 108-24-7 acetic anhydride 
• 3458-28-4 D-Mannose 
• 530-26-7 D-Mannose 
• 5019-25-0 methyl 2,3,4,6-tetra-O-acetyl-β-D-mannopyranoside 
• 75474-03-2 p-nitrobenzoic acetic anhydride 
• 81342-44-1 (2R,3R,4S,5R,6R)-2-(acetoxymethyl)-6-(2-(trimethylsilyl)ethoxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate 
• 78416-55-4 Benzyl-2,3-O-isopropyliden-5-O-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-β-D-ribofuranosid 
• 41355-50-4 2,3,4,6-tetra-O-acetyl-D-glucosyl-1-amine 
• 64-19-7 acetic acid 
• 75172-83-7 3,4,6-Tri-O-acetyl-1,2-O-(1-<4-(4-biphenylyl)butyryloxy>ethyliden)-α-D-glucopyranose 
• 17460-45-6 tetra-acetyl glucosamine 
• 604-69-3 β-D-glucose pentaacetate 
• 67-56-1 methanol 

Downstream Products

• 13992-16-0 phenyl 2,3,4,6-tetra-O-acetyl-1-thio-α-D-mannopyranoside 
• 28541-74-4 (2R,3S,4S,5S,6R)-2-(hydroxymethyl)-6-(4-methylphenoxy)-tetrahydropyran-3,4,5-triol 
• 28541-73-3 p-chlorophenyl α-D-mannopyranoside 
• 134733-76-9 2-phenylethyl α-D-mannopyranoside 
• 31909-79-2 (2R,3S,4S,5S,6R)-2-(hydroxymethyl)-6-(4-phenylphenoxy)-tetrahydropyran-3,4,5-triol 
• 617-04-9 (2R,3S,4S,5S,6S)-2-(hydroxymethyl)-6-methoxytetrahydro-2H-pyran-3,4,5-triol 
• 53784-29-5 2,3,4,6-tetra-O-acetyl-α-D-mannopyranosyl azide 
• 36215-42-6 N-<3,4,6-tri-O-acetyl-β-D-glucopyranosyl>piperidine 
• 14131-42-1 p-nitrophenyl 2,3,4,6-tetra-O-acetyl-α-D-glucopyranoside 
• 84380-04-1 3-chlorophenyl 2,3,4,6-tetra-O-acetyl-α-D-glucopyranoside 
• 79444-24-9 2,3,4,6-tetra-O-acetyl-1-O-(2,4,6-trimethylbenzoyl)-α-D-glucopyranose 
• 35023-57-5 1-O-(3′-nitrophenyl)-2,3,4,6-tetra-O-acetyl-α-D-glucopyranoside 
• 32742-23-7 p-Chlorophenyl 2,3,4,6-tetra-O-acetyl-α-D-glucopyranoside 
• 3945-14-0 tetra-O-acetyl-N-phenyl-α-D-glucopyranosylamine 

Relevant academic research and scientific papers

Design, Synthesis, biological investigations and molecular interactions of triazole linked tacrine glycoconjugates as Acetylcholinesterase inhibitors with reduced hepatotoxicity

Tacrine is a known Acetylcholinesterase (AChE) inhibitors having hepatotoxicity as main liability associated with it. The present study aims to reduce its hepatotoxicity by synthesizing tacrine linked triazole glycoconjugates via Huisgen's [3 + 2] cycloaddition of anomeric azides and terminal acetylenes derived from tacrine. A series of triazole based glycoconjugates containing both acetylated (A-1 to A-7) and free sugar hydroxyl groups (A-8 to A-14) at the amino position of tacrine were synthesized in good yield taking aid from molecular docking studies and evaluated for their in vitro AChE inhibition activity as well as hepatotoxicity. All the hybrids were found to be non-toxic on HePG2 cell line at 200 μM (100 % cell viability) as compared to tacrine (35 % cell viability) after 24 h of incubation period. Enzyme kinetic studies carried out for one of the potent hybrids in the series A-1 (IC50 0.4 μM) revealed its mixed inhibition approach. Thus, compound A-1 can be used as principle template to further explore the mechanism of action of different targets involved in Alzheimer's disease (AD) which stands as an adequate chemical probe to be launched in an AD drug discovery program.

Selectivity of 1-O-Propargyl-D-Mannose Preparations

Thanks to their ability to bind to specific biological receptors, mannosylated structures are examined in biomedical applications. One of the most common ways of linking a functional moiety to a structure is to use an azide-alkyne click reaction. Therefore, it is necessary to prepare and isolate a propargylated mannose derivative of high purity to maintain its bioactivity. Three known preparations of propargyl-α-mannopyranoside were revisited, and products were analysed by NMR spectroscopy. The preparations were shown to yield by-products that have not been described in the literature yet. Our experiments showed that one-step procedures could not provide pure propargyl-α-mannopyranoside, while a three-step procedure yielded the desired compound of high purity.

PROCESS OF SYNTHESIS OF β-6'SULFOQUINOVOSYL DIACYLGLYCEROLS

The present invention relates to a synthesis process of β-6-sulfoquinovosyl-diacylglycerols. In particular, said process is for the synthesis of the compounds 1,2-O-distearoyl-3-O-(β- sulfoquinovosyl)-R/S-glycerol, 1,2-O-distearoyl-3-O-(β-sulfoquinovosyl)-R-glycerol or 1,2- O-distearoyl-3-O-(β-sulfoquinovosyl)-S-glycerol, named respectively Sulfavant A, Sulfavant R and Sulfavant S.

Synthesis and biological evaluation of 3β-O-neoglycosides of caudatin and its analogues as potential anticancer agents

In order to study the structure–activity relationship (SAR) of C21-steroidal glycosides toward human cancer cell lines and explore more potential anticancer agents, a series of 3β-O-neoglycosides of caudatin and its analogues were synthesized. The results revealed that most of peracetylated 3β-O-monoglycosides demonstrated moderate to significant antiproliferative activities against four human cancer cell lines (MCF-7, HCT-116, HeLa, and HepG2). Among them, 3β-O-(2,3,4-tri-O-acetyl-β-L-glucopyranosyl)-caudatin (2k) exhibited the highest antiproliferative activity aganist HepG2 cells with an IC50 value of 3.11 μM. Mechanical studies showed that compound 2k induced both apoptosis and cell cycle arrest at S phase in a dose dependent manner. Overall, these present findings suggested that glycosylation is a promising scaffold to improve anticancer activity for naturally occurring C21-steroidal aglycones, and compound 2k represents a potential anticancer agent deserved further investigation.

Preparation and formulation optimization of methotrexate-loaded human serum albumin nanoparticles modified by mannose

Background: Methotrexate (MTX) is the representative drug among the dis-ease-modifying anti-rheumatic drugs. However, the conventional treatment with MTX showed many limitations and side effects. Objective: To strengthen the targeting ability and circulation time of MTX in the treatment of rheumatoid arthritis, the present study focused on developing a novel drug delivery system of methotrexate-loaded human serum albumin nanoparticles (MTX-NPs) modified by mannose, which are referred to as MTX-M-NPs. Methods: Firstly, mannose-derived carboxylic acid was synthesized and further modified on the surface of MTX-NPs to prepare MTX-M-NPs. The formulation of nanoparticles was optimized by the method of central composite design (CCD), with the drug lipid ra-tio, oil-aqueous ratio, and cholesterol or lecithin weight as the independent variables. The average particle size and encapsulation efficiency were the response variables. The response of different formulations was calculated, and the response surface diagram, con-tour diagram, and mathematical equation were used to relate the dependent and independent variables to predict the optimal formula ratio. The uptake of MTX-M-NPs by neu-trophils was studied through confocal laser detection. Further, MTX-M-NPs were subject-ed to assessment of the pharmacokinetics profile after intravenous injection with Sprague-Dawley rats. Results: This targeting drug delivery system was successfully developed. Results from Nuclear Magnetic Resonance and Fourier Transform Infrared Spectroscopy analysis can verify the successful preparation of this drug delivery system. Based on the optimized for-mula, MTX-M-NPs were prepared with a particle size of 188.17 ± 1.71 nm and an encapsulation rate of 95.55 ± 0.33%. MTX-M-NPs displayed significantly higher cellular uptake than MTX-NPs. The pharmacokinetic results showed that MTX-M-NPs could pro-long the in vivo circulation time of MTX. Conclusion: This targeting drug delivery system laid a promising foundation for the treatment of RA.

Does targeting Arg98 of FimH lead to high affinity antagonists?

Bacterial resistance has become an important challenge in the treatment of urinary tract infections. The underlying resistance mechanisms can most likely be circumvented with an antiadhesive approach, antagonizing the lectin FimH located at the tip of fim

Amino acid derivative and preparation method thereof

The invention discloses an amino acid derivative and a preparation method thereof. The amino acid comprises - SH and/or - OH groups, wherein the sugar chain comprises one mannose or more than two mannose in series, and the linker comprises S or o, the method of the invention can synthesize the required polysaccharide compound in one step, thereby not only saving a large amount of manpower and time, but also enabling a large amount of preparation of the target compound to be smooth. , The synthesis yield of the product is improved, a large amount of synthetic raw materials are saved, the production cost is greatly reduced, meanwhile, the environmental protection is facilitated, and the research of amino acid glycosylation is broken through and the application barrier is applied.

Preparation and characterization of glycopolymers with biphenyl spacers: Via Suzuki coupling reaction

Poly(vinylbiphenyl)s bearing glycoside ligands at the side chains were prepared using the Suzuku coupling reaction. Effects of glycoside reactant concentration, halide species, glycoside species, and catalyst species on the incorporation of glycoside ligand into the polymer were investigated. The obtained glycopolymers exhibited specific binding to proteins corresponding to the glycoside ligands. In addition, the biphenyl spacers formed by the Suzuki coupling reaction in the glycopolymer were fluorescent, whereas the polymer precursor was not.

Isolation and characterization of triterpenoid saponins from leaves of Aralia nudicaulis L

Three new oleanolic glycosides (1–3), along with seven known saponins from various plants (4–10) were isolated for the first time from the leaves of Aralia nudicaulis. Their structures were elucidated on the basis of spectroscopic evidence, including 1D and 2D NMR, and HRESIMS. Nudicauloside A and B (1–2) have shown moderate anti-inflammatory activity, as demonstrated by inhibition of LPS-induced NO production in raw 264.7 murine macrophages (IC50 = 74–101 μM).

A Sweet H2S/H2O2Dual Release System and Specific Protein S-Persulfidation Mediated by Thioglucose/Glucose Oxidase

H2S and H2O2 are two redox regulating molecules that play important roles in many physiological and pathological processes. While each of them has distinct biosynthetic pathways and signaling mechanisms, the crosstalk between these two species is also known to cause critical biological responses such as protein S-persulfidation. So far, many chemical tools for the studies of H2S and H2O2 have been developed, such as the donors and sensors for H2S and H2O2. However, these tools are normally targeting single species (e.g., only H2S or only H2O2). As such, the crosstalk and synergetic effects between H2S and H2O2 have hardly been studied with those tools. In this work, we report a unique H2S/H2O2 dual donor system by employing 1-thio-β-d-glucose and glucose oxidase (GOx) as the substrates. This enzymatic system can simultaneously produce H2S and H2O2 in a slow and controllable fashion, without generating any bio-unfriendly byproducts. This system was demonstrated to cause efficient S-persulfidation on proteins. In addition, we expanded the system to thiolactose and thioglucose-disulfide; therefore, additional factors (β-galactosidase and cellular reductants) could be introduced to further control the release of H2S/H2O2. This dual release system should be useful for future research on H2S and H2O2.