| 摘要 |
The present invention includes polymeric transport systems corresponding to the formula: wherein: R31 is a linear or branched polymer residue; Y10 and Y11 are independently O, S, or NR40; X2 is O, S or NR41; R32-35, R37-41, R50 and R51 are independently selected from among hydrogen, C1-6alkyls, C3-12branched alkyls, C3-8cycloalkyls, C1-6substituted alkyls, C3-8substituted cycloalkyls, aryls, substituted aryls, aralkyls, C1-6heteroalkyls and substituted C1-6heteroalkyls; a, b and e are each independently selected positive integers; L is an amino acid residue or a bifunctional linker; X3 is wherein Y12 and Y13 are independently O, S, or NR41; Z is a bond, a moiety that is actively transported into a target cell, a hydrophobic moiety or combinations thereof;, D1 and D2 are OH, a residue of a hydroxyl, a residue of an amine-containing moiety or a leaving group; and y1 and y2 are independently selected positive integers.
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