Patent ID: 8557231
Filing Date: 2013-10-15
Classification: A61K,A61P,B82Y,C08G,C12N

Abstract:
1. A composition for delivering an agent to a patient, tissue, organ, or cell comprising an agent and a polymer of the formula: or a salt thereof; wherein: linker A is selected from the group consisting of heteroatom-containing carbon chains of 1 to 30 atoms, and carbon chains and heteroatom-containing carbon chains with at least one substituent selected from the group consisting of branched and unbranched alkyl, branched and unbranched alkenyl, branched and unbranched alkynyl, amino, alkylamino, dialkylamino, trialkylamino, aryl, ureido, heterocyclic group, aromatic heterocyclic, cyclic, aromatic cyclic, halogen, hydroxyl, alkoxy, cyano, amido, carbamoyl, carboxyl, acyloxy, acyl, carbonyldioxyl, alkylthioether, and thiol groups; linker B is selected from the group consisting of heteroatom-containing carbon chains of 1 to 30 atoms, and carbon chains and heteroatom-containing carbon chains with at least one substituent selected from the group consisting of branched and unbranched alkyl, branched and unbranched alkenyl, branched and unbranched alkynyl, amino, alkylamino, dialkylamino, trialkylamino, ureido, halogen, hydroxyl, alkoxy, cyano, amido, carbamoyl, carboxyl, acyloxy, acyl, carbonyldioxyl, alkylthioether, and thiol groups; R R n is an integer between 5 and 10,000; wherein the agent and the polymer are not covalently attached.