Biodegradable polyacetal polymers and formation and use

C - Chemistry – Metallurgy – 08 – B

Patent

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Details

C08B 37/00 (2006.01) A61K 47/34 (2006.01) A61K 47/36 (2006.01) A61K 47/48 (2006.01) A61K 49/00 (2006.01) A61L 27/00 (2006.01) A61L 29/00 (2006.01) A61L 31/00 (2006.01) C08B 37/02 (2006.01) C08G 4/00 (2006.01) C08L 59/00 (2006.01)

Patent

CA 2215997

The present invention relates to biodegradable biocompatible polyacetals, methods for their preparation, and methods for treating mammals by administration of biodegradable biocompatible polyacetals. A method for forming the biodegradable biocompatible polyacetals combines a glycol-specific oxidizing agent with a polysaccharide to form an aldehyde intermediate which is combined with a reducing agent to form the biodegradable biocompatible polyacetal. The resultant biodegradable biocompatible polyacetals can be chemically modified to incorporate additional hydrophilic moieties. A method for treating mammals includes the administration of the biodegradable biocompatible polyacetal in which biologically active compounds or diagnostic labels can be disposed.

La présente invention a pour objet des polyacétals biocompatibles et biodégradables, leurs procédés de fabrication et des méthodes de traitement des mammifères par l'administration desdits polyacétals. Une des méthodes de formation des polyacétals biocompatibles et biodégradables consiste à combiner un agent d'oxydation spécifique du glycol avec un polysaccharide afin de former une aldéhyde intermédiaire que l'on combine avec un agent de réduction pour former le polyacétal biocompatible et biodégradable. Les polyacétals biocompatibles et biodégradables qui en résultent peuvent être modifiés chimiquement afin d'inclure des parties hydrophiles supplémentaires. Une des méthodes de traitement des mammifères consiste à administrer le polyacétal biocompatible et biodégradable dans lequel on peut disposer des composés biologiquement actifs ou des marqueurs de diagnostic.

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