A process for producing a compound of the formula (T)

##STR00001##

involves at least reacting a compound of the formula (U)

##STR00002##

with hydrogen and water in the presence of at least one homogeneous transition metal catalyst TMC 1.

A process for producing a compound of the formula (T)

##STR00001##

involves at least reacting a compound of the formula (U)

##STR00002##

with hydrogen and water in the presence of at least one homogeneous transition metal catalyst TMC 1.

A method of preparing a hydrogel product including crosslinked glycosaminoglycan molecules, said method including: i) providing a glycosaminoglycan crosslinked by amide bonds, wherein the crosslinked glycosaminoglycans include residual amine groups; and ii) acylating residual amine groups of the crosslinked glycosaminoglycans provided in i) to form acylated crosslinked glycosaminoglycans.

A method of preparing a hydrogel product including crosslinked glycosaminoglycan molecules, said method including: i) providing a glycosaminoglycan crosslinked by amide bonds, wherein the crosslinked glycosaminoglycans include residual amine groups; and ii) acylating residual amine groups of the crosslinked glycosaminoglycans provided in i) to form acylated crosslinked glycosaminoglycans.

The invention relates to a hydrogel product comprising glycosaminoglycan molecules as the swellable polymer, wherein the glycosaminoglycan molecules are covalently crosslinked via crosslinks comprising a spacer group selected from the group consisting of di-, tri-, tetra-, and oligosaccharides.

The invention relates to a hydrogel product comprising glycosaminoglycan molecules as the swellable polymer, wherein the glycosaminoglycan molecules are covalently crosslinked via crosslinks comprising a spacer group selected from the group consisting of di-, tri-, tetra-, and oligosaccharides.

The invention relates to a hydrogel product comprising glycosaminoglycan molecules as the swellable polymer, wherein the glycosaminoglycan molecules are covalently crosslinked via crosslinks comprising a spacer group selected from the group consisting of di-, tri-, tetra-, and oligosaccharides.

The invention relates to a hydrogel product comprising glycosaminoglycan molecules as the swellable polymer, wherein the glycosaminoglycan molecules are covalently crosslinked via crosslinks comprising a spacer group selected from the group consisting of di-, tri-, tetra-, and oligosaccharides.

A process for producing a compound of the formula (I)

##STR00001##

involves at least reacting a compound of the formula (II)

##STR00002##

with hydrogen and water in the presence of at least one homogeneous transition metal catalyst TMC 1.

A process for producing a compound of the formula (I)

##STR00001##

involves at least reacting a compound of the formula (II)

##STR00002##

with hydrogen and water in the presence of at least one homogeneous transition metal catalyst TMC 1.