CARRIER POLYMERS MIGRATING INTO TARGET ORGANS AND DRUG-CONTAINING POLYMERS

摘要

Polymers derived from polymers represented by general Formula (A) (wherein d is from 20 to 500; and Rs, which may be the same or different, represent each H, alkyl or benzyl) by substituting a part or all of the constituting peptide bonds by (1) hydrazino-Glu (Formula B) and saccharide-modified Glu (Formula C), or by (2) hydrazino-Glu (Formula B) and saccharide-modified Glu (Formula C) and drug bonded Glu (Formula D). These polymers, which are carriers optionally bonded to drugs capable of migrating into target organs (cells), are useful as medicines.