(2S,3S,4S,5R,6R)-methyl 6-((1R,2S,3R,4R,5R)-3-acetoxy-4-azido-6,8-dioxabicyclo[3,2,1]octan-2-yloxy)-4,5-bis(benzyloxy)-3-(chlorocarbonyloxy)tetrahydro-2H-pyran-2-carboxylate

It acts as a glycosyl donor/activated sugar building block during the stepwise assembly of the pentasaccharide backbone. The molecule contains several protecting groups (benzyl, acetyl, and chloroformate) that control reactivity and stereochemistry during glycosylation, while the azido group serves as a precursor for an amine that is later converted to an N-sulfate group, an important structural feature required for the biological activity of Fondaparinux. The compound (2S,3S,4S,5R,6R)-methyl 6-((1R,2S,3R,4R,5R)-3-acetoxy-4-azido-6,8-dioxabicyclo[3.2.1]octan-2-yloxy)-4,5-bis(benzyloxy)-3-(chlorocarbonyloxy)tetrahydro-2H-pyran-2-carboxylate is a protected carbohydrate intermediate used in the multistep synthesis of the anticoagulant drug Fondaparinux Sodium.

API Name Fondaparinux sodium
CAS No 87907-02-6
Molecular Formula C30H32ClN3O12
Molecular Weight 662.0 g/mol
Synonyms methyl (2S,3S,4S,5R,6R)-6-[[(1R,2S,3R,4R,5R)-3-acetyloxy-4-azido-6,8-dioxabicyclo[3.2.1]octan-2-yl]oxy]-3-carbonochloridoyloxy-4,5-bis(phenylmethoxy -Show More

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