113889-50-2

Usage

Uses

Used in Pharmaceutical Industry:
2,3,4-TRI-O-ACETYL-ALPHA-D-ARABINOPYRANOSYL BROMIDE is used as a building block for the synthesis of pharmaceuticals, contributing to the development of new drugs and therapeutic agents. Its unique structure allows for the creation of a variety of chemical compounds with potential medicinal properties.
Used in Agrochemical Industry:
In the agrochemical sector, 2,3,4-TRI-O-ACETYL-ALPHA-D-ARABINOPYRANOSYL BROMIDE is utilized as a key component in the synthesis of agrochemicals, such as pesticides and herbicides. Its reactivity and structural features enable the production of effective compounds for agricultural applications.
Used in Organic Synthesis:
2,3,4-TRI-O-ACETYL-ALPHA-D-ARABINOPYRANOSYL BROMIDE is employed as a reactant in organic synthesis, allowing chemists to create a wide range of chemical compounds for various purposes. Its versatility in reacting with other molecules makes it a valuable tool in the field of organic chemistry.
Used in Chemical Research:
As a brominated sugar derivative, 2,3,4-TRI-O-ACETYL-ALPHA-D-ARABINOPYRANOSYL BROMIDE is used in chemical research to explore its properties, reactivity, and potential applications. Researchers utilize 2,3,4-TRI-O-ACETYL-ALPHA-D-ARABINOPYRANOSYL BROMIDE to gain insights into the behavior of similar sugar derivatives and their role in chemical reactions.

Upstream product

• 108646-05-5 (3S,4R,5R)-tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate 
• 28697-53-2 D-arabinopyranose 
• 10323-20-3 D-Arabinose 
• 10369-25-2 2,3,4-tri-O-acetyl-D-arabinopyranose 

Downstream Products

• 62414-75-9 2,3,4-tri-O-acetyl-α-D-arabinopyranosyl isotyhiocyanate 
• 403822-05-9 4-(2',3',4'-tri-O-acetyl-β-D-arabinopyranosyloxy)benzaldehyde 
• 3152-43-0 3,4-di-O-acetyl-D-arabinal 
• 476487-90-8 (3S,4aR,5S,8R,8aS)-3-benzyloxy-4a,5,8,8a-tetrahydro-5,8-ethano-1H-2-benzopyran-4(3H)-one 
• 581095-83-2 (3S,4aS,5R,8S,8aR)-3-benzyloxy-4a,5,8,8a-tetrahydro-5,8-methano-1H-2-benzopyran-4(3H)-one 
• 476487-84-0 (3S,4aR,5S,8R,8aS)-3-benzyloxy-4a,5,8,8a-tetrahydro-5,8-methano-1H-2-benzopyran-4(3H)-one 
• 391928-90-8 (2S)-2-benzyloxy-2H-pyran-3-(6H)-one 
• 403822-06-0 3-(2',3',4'-tri-O-acetyl-β-D-arabinopyranosyloxy)benzaldehyde 
• 25878-56-2 Acetic acid (3S,6R)-6-methoxy-3,6-dihydro-2H-pyran-3-yl ester 
• 3152-43-0 3,4-di-O-acetyl-D-xylal 

Relevant academic research and scientific papers

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.

Stereoselective total synthesis of all the stereoisomers of (+)- and (?)-febrifugine and halofuginone

A convenient method for the total synthesis of all the stereoisomers of febrifugine and halofuginone using D-arabinose and L-arabinose as the key starting materials is reported. Apart from the inherent stereocenters in these pentose sugars, the method utilizes the selective hydrogenolysis of the anomeric O-benzyl group, stereoselective Grignard reaction and Wacker oxidation as the key steps to obtain the important precursors for the total synthesis.

Synthesis of xylal- and arabinal-based crown ethers and their application as asymmetric phase transfer catalysts

New xylal- and arabinal-based monoaza-15-crown-5 ethers were synthesized starting from l- and d-xylose, and l- and d-arabinose, respectively. These monosaccharide-based chiral macrocycles were tested as phase transfer catalysts in a few asymmetric reactions. The xylal-based crown compounds proved to be efficient catalysts in a few liquid-liquid phase reactions. The epoxidation of trans-chalcone and the Darzens condensation of α-chloroacetophenone with benzaldehyde took place with complete diastereoselectivity and up to 77% ee and 58% ee, respectively. It was found that the substituents in the aromatic ring of the chalcone and the α-chloroacetophenone had an influence on the enantioselectivity. The highest ee values were obtained in the epoxidation of 4-chlorochalcone (81% ee) and in the reaction of a 2-naphthyl analogue (96% ee), while in the Darzens condensation of 4-phenyl-α-chloroacetophenone with benzaldehyde, a maximum ee of 91% was detected. The configuration of the monosaccharide unit in the crown ring influenced the absolute configuration of the epoxyketones synthesized.

Non-naturally Occurring Regio Isomer of Lysophosphatidylserine Exhibits Potent Agonistic Activity toward G Protein-Coupled Receptors

Lysophosphatidylserine (LysoPS), an endogenous ligand of G protein-coupled receptors, consists of l-serine, glycerol, and fatty acid moieties connected by phosphodiester and ester linkages, respectively. An ester linkage of phosphatidylserine can be hydrolyzed at the 1-position or at the 2-position to give 2-acyl lysophospholipid or 1-acyl lysophospholipid, respectively. 2-Acyl lysophospholipid is in nonenzymatic equilibrium with 1-acyl lysophospholipid in vivo. On the other hand, 3-acyl lysophospholipid is not found, at least in mammals, raising the question of whether the reason for this might be that the 3-acyl isomer lacks the biological activities of the other isomers. Here, to test this idea, we designed and synthesized a series of new 3-acyl lysophospholipids. Structure-activity relationship studies of more than 100 "glycol surrogate"derivatives led to the identification of potent and selective agonists for LysoPS receptors GPR34 and P2Y10. Thus, the non-natural 3-acyl compounds are indeed active and appear to be biologically orthogonal with respect to the physiologically relevant 1-and 2-acyl lysophospholipids.

Synthesis of C3-Neoglycosides of digoxigenin and their anticancer activities

Cardiac glycosides exhibit significant anticancer effects and the glycosyl substitution at C3 position of digoxigenin is pivotal for their biological activity. In order to study the structure-activity relationship (SAR) of cardiac glycosides toward cancers and explore more potent anticancer agents, a series of C3-O-neoglycosides and C3-MeON-neoglycosides of digoxigenin were synthesized by the Koenigs-Knorr and neoglycosylation method, respectively. In addition, digoxigenin bisdigitoxoside and monodigitoxoside were prepared from digoxin by sodium periodate (NaIO4) oxidation and 6-aminocaproic acid hydrolysis. The SAR analysis revealed that C3-O-neoglycosides of digoxigenin exhibited stronger cytotoxicity and induction of Nur77 expression of tumor cells than C3-MeON-neoglycosides. Also, 3β-O-glycosides exhibited stronger anticancer effects than 3α-O-glycosides. Among them, 3β-O-(β-L-fucopyranosyl)-digoxigenin (3i) showed the highest activity on induction of Nur77 expression and translocation from the nucleus to cytoplasm, leading to cancer cell apoptosis.

Synthesis and antiproliferative activity of derivatives of the phyllanthusmin class of arylnaphthalene lignan lactones

A series of arylnaphthalene lignan lactones based on the structure of the phyllanthusmins, a class of potent natural products possessing diphyllin as the aglycone, has been synthesized and screened for activity against multiple cancer cell lines. SAR exploration was performed on both the carbohydrate and lactone moieties of this structural class. These studies have revealed the importance of functionalization of the carbohydrate hydroxy groups with both acetylated and methylated analogues showing increased potency relative to those with unsubstituted sugar moieties. In addition, the requirement for the presence and position of the C-ring lactone has been demonstrated through reduction and selective re-oxidation of the lactone ring. The most potent compound in this study displayed an IC50 value of 18 nM in an HT-29 assay with several others ranging from 50 to 200 nM. In an effort to elucidate their potential mechanism(s) of action, the DNA topoisomerase IIa inhibitory activity of the most potent compounds was examined based on previous reports of structurally similar compounds, but does not appear to contribute significantly to their antiproliferative effects.

1 -(CYCLOPENT-2-EN-1 -YL)-3-(2-HYDROXY-3-(ARYLSULFONYL)PHENYL)UREA DERIVATIVES AS CXCR2 INHIBITORS

The invention relates to 1-(3-sulfonylphenyl)-3-(cyclopent-2-en-1-yl)urea derivatives, and their use in treating or preventing diseases and conditions mediated by the CXCR2 receptor. In addition, the invention relates to compositions containing the derivatives and processes for their preparation.

Stereocontrolled Diels - Alder cycloadditions of sugar-derived dihydropyranones with dienes

2-Acetoxy-3,4-di-O-acetyl-D-arabinal (6), similar to its D-xylo analogue 4, reacted with benzyl alcohol by the tin(IV) chloride-promoted glycosylation to produce optically active (S)-2-benzyloxy-2H-pyran-3(6H)-one (8a). The L-arabinal derivative (5) gave 9a, the dihydropyranone enantiomer of 8a. These results indicated that the configuration of the C-4 stereocenter in the starting glycal defines the configuration of the new chiral center in the resulting dihydropyranone. The influence of other catalysts (BF3 or iodine) employed for the glycosylation on the optical purity of the dihydropyranone was studied. Enantiomerically pure dihydropyranones 8b and 9c were obtained using chiral alcohols ((R)- and (S)-2-octanol, respectively) as glycosylating agents. Compounds 8a,b and 9a,c proved to be reactive dienophiles in thermal and Lewis acid-promoted Diels - Alder reactions. The addition of 2,3-dimethylbutadiene, cyclopentadiene, and 1,3-cyclohexadiene to the β-pyranones 8a,b led to the corresponding adducts 10a,b, 12a,b, and 16a,b as major products. Enantiomeric cycloadducts were synthesized from the α-pyranones 9a,c. The main products were formed by highly facial-diastereoselective addition of dienes to the pyranone ring, guided by the sterical hindrance of the alkoxy substituent of the C-2 stereocenter. As cycloadditions with cycloalkadienes were also highly endo diastereoselective, these reactions gave access to pure tetrahydrobenzopyranones that carry a multitude of stereogenic centers installed in a predictable way.

Enantiopure synthesis of carbohydrates mediated by oxyselenenylation of 3,4-dihydro-2H-pyran

Oxyselenenylation of 3,4-dihydro-2H-pyran with (S,S)hydrobenzoin and subsequent stereoselective transformations afforded the enantiopure L- and D-arabinose while a disaccharide, 6-0-(β-D-arabinopyranosyi)-l,2:3,4-di-Oisopropylidene-a-D-galactopyranose (13) was synthesized from 3,4-dihydro-2H-pyran by utilizing the same methodology.3 The Royal Society of Chemistry 2000.