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US 6,664,399 B1Granted
Triazole linked carbohydrates
AssigneeE. I. Du Pont de Nemours and Company
InventorSubramaniam Sabesan
Life of this patent
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Abstract
Disclosed is an invention concerning triazolyloligosaccharides, oligosaccharides wherein the bonding between the saccharide groups is via a triazole group and methods for their preparation.
Claims6
A compound having the structure I,
- wherein each R, independently, is selected from the group consisting of hydrogen, hydroxy, alkoxy having up to 8 carbon atoms, acyloxy having up to 8 carbon atoms, acylamino having up to 8 carbon atoms, C1 to C20 hydrocarbyl and substituted hydrocarbyl and amino;
- R3 is selected from the group consisting of H, C1 to C20 hydrocarbyl and substituted hydrocarbyl;
- m is 0 or 1, and
- n and n′ are, independently, 4 or 5;
- wherein the N-1 nitrogen atom of the triazole ring is linked to a first saccharide group;
- and
- wherein the 4-carbon atom or the 5-carbon atom of the triazole ring is bound to a second saccharide group via a carbonyl group.
4 more elements
A compound of the structure II,
- wherein R1 is selected from the group consisting of H, Na, C1-C20 alkyl,
- wherein R2 is selected from the group consisting of hydroxy, alkoxy having from 1 to 8 carbon atoms, acyloxy having from 1 to 8 carbon atoms, acylamino having
- from 1 to 8 carbon atoms, amino, hydrogen, and guanidino;
- wherein R3 is selected from the group consisting of H, C1 to C20 hydrocarbyl, and substituted hydrocarbyl;
- wherein R4 is selected from the group consisting of H, acyl having from 1 to 8 carbon atoms, and alkyl having 1 to 20 carbon atoms;
- wherein R6 and R6′ are selected from the group consisting of H, OH, C1 to C20 alkoxy, C1 to C20 substituted alkoxy, mono-, di- or oligosaccharide, and alkylideneoxy taken together with R7′ when R7′ is not H, provided that one of R6 and R6′ must be H but R6 and R6′ may not both be H;
- and
- R7 and R7′ are selected from the group consisting of H, acyl having from 1 to 8 carbon atoms, C1 to C20 alkyl, aryl, and alkylidene taken together with an adjacent R6, R6′, R7 or R7′.
5 more elements
A compound of the structure III,
- wherein R3 is selected from the group consisting of H, C1 to C20 hydrocarbyl, and C1 to C20 substituted hydrocarbyl;
- R8 is selected from the group consisting of H, alkyl having from 1 to 20 carbon atoms, and acyl having from 1 to 8 carbon atoms;
- wherein R6 and R6′ are selected from the group consisting of H, OH, C1 to C20 alkoxy, C1 to C20 substituted alkoxy, mono-, di- or oligosaccharide, and alkylideneoxy taken together with R7′, when R7′ is not H, provided that one of R6 and R6′ must be H but R6 and R6′ may not both be H;
- and
- wherein R7 and R7′ are selected from the group consisting of H, acyl having from 1 to 8 carbon atoms, C1 to C20 alkyl, aryl, and alkylidene taken together with an adjacent R6, R6′, R7 or R7′.
2 more elements
Dependencies are inferred from the claim text.