13224-99-2

Basic information

• Product Name: 4,6-O-Ethylidene-alpha-D-glucose
• Synonyms: (2R,3R)-2,3-dihydroxy-3-((4R,5R)-5-hydroxy-2-methyl-1,3-dioxan-4-yl)propanal;(4aR,6S,7R,8R,8aS)-2-Methylhexahydropyrano[3,2-d][1,3]dioxine-6,7,8-triol;(4AR,7R,8R,8aS)-2-Methylhexahydropyrano-[3,2-d][1,3]dioxine-6,7,8-triol;NSC 89726;-D-glucopyranose;4,6-O-Ethylidene-α4,6-O-ETHYLIDENE-A-D-GLUCOSE;4,6-O-ETHYLIDENE-ALPHA-D-GLUCOPYRANOSE
• CAS NO: 13224-99-2
• Molecular Formula: C₈H₁₄O₆
• Molecular Weight: 206.19
• EINECS: 236-496-2
• Product Categories: Sugars;Carbohydrate Synthesis;Specialty Synthesis;Monosaccharides;Sugars, Carbohydrates & Glucosides;Biochemistry;Glucose;O-Substituted Sugars
• Mol File: 13224-99-2.mol
• Article Data: 6

Chemical Properties

• Melting Point: 168-170 °C(lit.)
• Boiling Point: 386.571ºC at 760 mmHg
• Flash Point: >110°(230°F)
• Appearance: White to Off-white/Powder
• Density: 1.447g/cm3
• Vapor Pressure: 0mmHg at 25°C
• Refractive Index: 1.539
• Solubility: Ethanol, Water
• PKA: 12.01±0.70(Predicted)
• Water Solubility: almost transparency
• CAS DataBase Reference: 4,6-O-Ethylidene-alpha-D-glucose(CAS DataBase Reference)
• NIST Chemistry Reference: 4,6-O-Ethylidene-alpha-D-glucose(13224-99-2)
• EPA Substance Registry System: 4,6-O-Ethylidene-alpha-D-glucose(13224-99-2)

Safety Data

• Safety Statements: 24/25
• WGK Germany: 3
• Hazardous Substances Data: 13224-99-2(Hazardous Substances Data)

Usage

Uses

4,6-O-Ethylidene-D-glucose is an intermediate in synthesizing α-Etoposide (E933745), which is a cytotoxic agent (anticancer drug), which belongs to the drug type topoisomerase inhibitor. It is also an antineoplastic drug.

InChI:InChI=1/C8H14O6/c1-3-12-2-4-7(13-3)5(9)6(10)8(11)14-4/h3-11H,2H2,1H3/t3-,4-,5-,6-,7-,8+/m1/s1

Upstream product

• 2280-44-6 D-Glucose 
• 123-63-7 paracetaldehyde 
• 50-99-7 D-glucose 
• 105453-29-0 1,2,3-tri-O-acetyl-4,6-O-ethylidene-β-D-glucopyranose 
• 27994-30-5 4,6-O-ethylidene-1,2,3-tri-O-acetyl-β-glucopyranose 

Downstream Products

• 70377-89-8 (1'R)-(-)-2,4-O-ethylidene-D-erythrose 
• 906364-81-6 2,4-O-Ethyliden-D-erythrit 
• 70369-46-9 (2R,4S,5R)-4-hydroxymethyl-2-methyl-1,3-dioxan-5-ol 
• 73466-12-3 Leukotriene A₄ methyl ester 
• 73957-99-0 (-)-(S,S-trans)-3-(hydroxymethyl)oxiranebutanoic acid methyl ester 
• 73958-00-6 (5S,6S)-epoxy-10-formyl-(7E,9E)-decadienoic acid methyl ester 
• 1613708-53-4 C₁₇H₂₂N₂O₇ 
• 1613708-51-2 C₂₅H₃₆N₂O₁₂ 
• 1360882-53-6 2,6-bis-(4(4,6-O-ethylidene-β-D-glucopyranosyl-amino)phenyl)-4-(3,4,5-tri-O-octyl-phenyl)pyridine 
• 1360882-51-4 2,6-bis-(4(4,6-O-ethylidene-β-D-glucopyranosyl-amino)phenyl)-4-(3,4-di-O-octyl-phenyl)pyridine 
• 1360882-49-0 2,6-bis-(4(4,6-O-ethylidene-β-D-glucopyranosyl-amino)phenyl)-4-(4-O-octyl-phenyl)pyridine 

Relevant articles and documents

A new route for preparation of 2-deoxy-D-ribofuranose phospho sugar

The addition reaction of dimethyl phosphonate to (2R,4S)-4-(tert-butyldimethylsilyl)oxymethyl-2-methyl-1,3-dioxan-5-one (11a), followed by dehydroxylation, provided 1-O-(tert-butyldimethylsilyl)-3-deoxy-3-dimethoxy-phosphinoyl-2,4-O-ethylidene-d-erythritol (13a). Elongation of carbon skeleton of the d-erythrose (14) derived from 13a and then acidic methanolysis gave a mixture of methyl 2,4-dideoxy-4-dimethoxyphosphinoyl-α,β-d-erythro-pentopyranosides (7), which was led to 2-deoxy-D-ribofuranose phospho sugar (4) in an appreciably improved total yield compared with the procedures via previously reported route.

β-lactams from D-erythrose-derived imines: A convenient synthesis of 2,3-diamino-2,3-dideoxy-d-mannonic-acid derivatives

The D-manno-configured N-anisylated β-lactam 40, the β-lactam carboxylic acids 4 and 43, and the corresponding phosphonic-acid isosters 49 and 50 have been synthesized from D-glucose in 8-10 steps, respectively. None of these compounds exhibited a significant inhibitory activity in vitro against the sialidases of Vibrio cholerae, Salmonella typhimurium, Influenza A (N9), and Influenza B virus. Cycloaddition of the in situ generated imines derived from the D-erythroses 6, 16, and 17 with the ketene from mesyloxyacetyl chloride (20) gave the 2-mesyloxy-D-hexono-1,3-lactams 25, 27a/b, 28a/b/c, and 29 in 23, 69, 57, and 90% yield, respectively (Scheme 3). Transformation of 27a/b and 29 (> 85%) to the corresponding azides, followed by oxidative N-deprotection, gave 30a/b (45%) and 34 (80%). Subsequent alkylation of the ring N-atom in 31a with benzyl bromoacetate and dibenzyl (triflyloxymethyl)phosphonate 46 gave the carboxylate 41 (77%) and the phosphonate 47 (55%; Schemes 4 and 5). Hydrogenolysis of 41 gave the β- lactam amino acid 43, besides its hydrolysis product 44. Reductive N- acylation of the azido group in 41 (93%), followed by hydrogenolytic debenzylation, yielded the 2-trifluoroacetamido N-(carboxymethyl)-β-lactam 4 (56%). Similarly, 47 gave the 2-trifluoroacetamide 48 (89%), and hence, the 2-amino-N-(phosphonoylmethyl)-β-lactams 49 (40%) and 50, resulting from deacylation of 49 (14%). Aminolysis and carbamoylation of the protected β- lactams 31a and 35 led to the 2,3-diamino-2,3-dideoxy-D-mannonamides 51 and 53, respectively (Scheme 6).

Studies in Sugar Chemistry. 2. A Simple Method for O-Deacylation of Polyacylated Sugars

Total solvolytic O-deacylation of polyacylated sugars is readily accomplished upon stirring for 15 min - 6 h a solution of a sugar in methanol in the presence of catalytic amount of cyanide.The reaction proceeds in high yields, under neutral conditions, at room temperature.The overall rate of the reaction, readily followed by observing the changes in the 1H 300-MHz NMR spectra, is greatly influenced by the substituent at the anomeric position in the order of 1-OH > 1-OAc >> 1-OR.