Patent 7887789 was granted and assigned to Nektar Therapeutics on February, 2011 by the United States Patent and Trademark Office.
Polymeric reagents are provided comprising a moiety of atoms arranged in a specific order, wherein the moiety is positioned between a water-soluble polymer and a reactive group. The polymeric reagents are useful for, among other things, forming polymer-active agent conjugates. Related methods, compositions, preparations, and so forth are also provided.