| abstract |
This polysaccharide derivative has a partial structure represented by general formula (1). It is preferable that at least one of the amino acids that constitutes X 2 of general formula (1) is a basic amino acid. (In the formula, X 1 represents a residue obtained by removing a terminal amino acid group and a terminal carboxyl group from a neutral amino acid or ω-amino alkanoic acid, X 2 represents a residue obtained by removing a terminal amino group and a terminal carboxyl-group from a membrane-permeable peptide, X 3 represents a hydroxyl group, an amino group, a C1-4 alkoxyl group or a benzyloxy group, a represents 0 or 1, and b represents a number from 0-50.) |