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US 9,308,273 B2Granted
Polymer derivatives comprising an acetal or ketal branching point
AssigneeNektar Therapeutics
InventorsSamuel P. McManus, Antoni Kozlowski
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Abstract
The invention conjugates that can be prepared by contacting a polymer comprising an acetal or ketal branching point with a pharmacologically active agent under conditions suitable to form a covalent attachment between the polymer and the pharmacologically active agent.
Claims2
A conjugate prepared by a polymer with a pharmacologically active agent under conditions suitable to form a covalent attachment between the polymer and the pharmacologically active agent, wherein the polymer is selected from the group consisting of
- wherein each (m) is from 2 to 4,000 and Ro is H or an organic radical.
Dependencies are inferred from the claim text.