Biodegradable polyhydric alcohol esters

C - Chemistry – Metallurgy – 08 – G

Patent

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Details

C08G 63/08 (2006.01) A61K 47/34 (2006.01) A61L 31/06 (2006.01) A61L 31/14 (2006.01) A61L 31/16 (2006.01) C08F 290/06 (2006.01) C08G 81/00 (2006.01) C08J 3/075 (2006.01)

Patent

CA 2450123

Precursor polyhydric alcohol esters where acyl moieties originate from aliphatic homopolymer or copolymer polyesters and contain free hydroxyl at their terminal ends, are reacted to provide 2-carboxy ethenyl groups. The resulting products can be used in formation of hydrogels for drug delivery or can be reacted to attach aminoxyl radical or drug molecule residue or other biologically active agent for delivery of these, for example, from vascular stents.

L'invention concerne des esters d'alcool polyhydrique précurseurs dans lesquels des groupes fonctionnels acyle provenant de polyesters homopolymères ou copolymères aliphatiques et contenant à leurs extrémités terminales, de l'hydroxyle libre, sont mis à réagir pour donner lieu à des groupes 2-carboxy éthényle. Les produits résultants obtenus peuvent s'utiliser dans la formation d'hydrogels pour administrer des médicaments ou peuvent être mis à réagir pour fixer un radical aminoxyle ou des résidus de molécule médicamenteuse ou d'autre agent biologiquement actif, afin de les administrer, par exemple à partir de tuteurs intravasculaires.

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