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87326-72-5

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87326-72-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87326-72-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,3,2 and 6 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 87326-72:
(7*8)+(6*7)+(5*3)+(4*2)+(3*6)+(2*7)+(1*2)=155
155 % 10 = 5
So 87326-72-5 is a valid CAS Registry Number.

87326-72-5Downstream Products

87326-72-5Relevant articles and documents

A chemoselective oxidation of monosubstituted ethylene glycol: Facile synthesis of optically active α-hydroxy acids

Chinthapally, Kiran,Baskaran, Sundarababu

supporting information, p. 4305 - 4309 (2014/06/23)

A mild and efficient method for the synthesis of optically active α-hydroxy acids through chemoselective oxidation of monosubstituted ethylene glycols using the TEMPO-NaOCl reagent system is described. It is evident from our studies that the solvent, pH and reaction temperature are very crucial for the success of this oxidation. The versatility of this method has been demonstrated with a variety of aliphatic, aromatic and carbohydrate substrates bearing various functional groups. the Partner Organisations 2014.

PROCESS FOR PREPARING HEPARINOIDS AND INTERMEDIATES USEFUL IN THE SYNTHESIS THEREOF

-

, (2013/02/28)

Processes are disclosed for the synthesis of the Factor Xa anticoagulant fondaparinux and related compounds. Protected pentasaccharide intermediates and efficient and scalable processes for the industrial scale production of fondaparinux sodium by conversion of the protected pentasaccharide intermediates via a sequence of deprotection and sulfonation reactions are provided.

SYNTHESIS OF HEPARIN FRAGMENTS. A CHEMICAL SYNTHESIS OF THE TRISACCHARIDE O-(2-DEOXY-2-SULFAMIDO-3,6-DI-O-SULFO-α-D-GLUCOPYRANOSYL)-(1->4)-O-(2-O-SULFO-α-L-IDOPYRANOSYL-URONIC ACID)-(1->4)-2-DEOXY-2-SULFAMIDO-6-O-SULFO-D-GLUCOPYRANOSE HEPTASODIUM SALT

Jacquinet, Jean-Claude,Petitou, Maurice,Duchaussoy, Philippe,Lederman, Isidore,Choay, Jean,et al.

, p. 221 - 242 (2007/10/02)

Known 3-O-benzyl-1,2-O-isopropylidene-α-D-glucofuranose was first converted into methyl 3-O-benzyl-1,2-O-isopropylidene-β-L-idofuranuronate.Acid hydrolysis, followed by acetylation and treatment with titanium tetrabromide, gave methyl (2,4-di-O-acetyl-3-O-benzyl-α-L-idopyranosyl bromide)uronate, which was immediately transformed into methyl 4-O-acetyl-3-O-benzyl-β-L-idopyranuronate 1,2-(tert-butyl orthoacetate).A two-step replacement of the 4-O-acetyl by a 4-O-chloroacetyl group gave the key derivative, crystalline methyl 3-O-benzyl-4-O-chloroacetyl-β-L-idopyranuronate 1,2-(tert-butyl orthoacetate).Condensation of this orthoester with an excess of crystalline benzyl 6-O-acetyl-3-O-benzyl-2-(benzyloxycarbonyl)amino-2-deoxy-α-D-glucopyranoside in chlorobenzene in the presence of 2,6-dimethylpyridinium perchlorate gave crystalline benzyl 6-O-acetyl-3-O-benzyl-2-(benzyloxycarbonyl)amino-2-deoxy-4-O-(methyl 2-O-acetyl-3-O-benzyl-4-O-chloroacetyl-α-L-idopyranosyluronate)-α-D-glucopyranoside in 40 percent yield.O-Demonochloroacetylation, followed by condensation with known 3,6-di-O-acetyl-2-azido-4-O-benzyl-2-deoxy-α-D-glucopyranosyl bromide in dichloromethane in the presence of 2,4,6-trimethylpyridine, silver triflate, and molecular sieve provided benzyl O-(3,6-di-O-acetyl-2-azido-4-O-benzyl-2-deoxy-α-D-glucopyranosyl)-(1->4)-O-(methyl 2-O-acetyl-3-O-benzyl-α-L-idopyranosyluronate)-(1->4)-6-O-acetyl-3-O-benzyl-2-(benzyloxycarbonyl)amino-2-deoxy-α-D-glucopyranoside in 88 percent yield.O-Deacetylation with sodium hydroxide, followed successively by O-sulfation in N,N-dimethylformamide in the presence of sulfur trioxide-trimethylamine complex, catalytic hydrogenolysis, and N-sulfation in water with the same sulfating agent, gave the heptasodium salt of O-(2-deoxy-2-sulfamido-3,6-di-O-sulfo-α-D-glucopyranosyl)-(1->4)-O-(2-O-sulfo-α-L-idopyranosyluronic acid)-(1->4)-2-deoxy-2-sulfamido-6-O-sulfo-D-glucopyranose.This trisaccharide, which is a fragment of the minimal antithrombin III-binding region in heparin, neither binds to antithrombin III nor induces anti-Xa activity.

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