Methods and kits for making polypeptides having a single covalently bound N-terminal water-soluble polymer

摘要

This invention provides compositions consisting essentially of a polypeptide and a water-soluble polymer covalently bound thereto at the N-terminal alpha -carbon atom via a hydrazone or reduced hydrazone bond, or an oxime or reduced oxime bond. This invention also provides methods of making the instant compositions, pharmaceutical compositions comprising same, and kits for use in preparing same.