Patent ID: 8273343

Claim:
A peptide-polymer conjugate of the following formula: wherein each of R 1 , R 2 , R 3 , R 4 , and R 5 , independently, is H, C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, aryl, heteraryl, C 3-8 cycloalkyl, or C 3-8 heterocycloalkyl; each of A 1 and A 2 , independently, is a polymer; each of G 1 , G 2 , and G 3 , independently, is a bond or a linking functional group; P is selected from the group consisting of an interferon-β, an erythropoietin, and a growth hormone, the nitrogen atom of the N-terminus of P being bonded to G 3 ; m is 0 or an integer of 1-10; and n is an integer of 1-10.