Patent ID: 9169355
Filing Date: 2015-10-27
Classification: A61K,C08G,C08L

Abstract:
1. A polyethyleneimine-graft-(polyethyleneglycol;poly(3,4-dihydroxyphenylalanine)) copolymer (PEI-graft-(PEG;PDOPA)), consisting of polyethyleneglycol, polyethyleneimine and poly(3,4-dihydroxyphenylalanine), wherein the PDOPA is selected from L-PDOPA synthesized from N-carboxyl anhydride of L-DOPA (L-3,4-dihydroxy phenylalanine), D-PDOPA synthesized from N-carboxyl anhydride of D-DOPA(D-3,4-dihydroxy phenylalanine), and L,D-P DOPA synthesized from N-carboxyl anhydride of L,D-DOPA (L,D-3,4-dihydroxy phenylalanine), wherein PDOPA is represented by Structure [C]: and wherein d ranges from 2 to 100.