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Boc-NH-PEG2k-CA4 telodendrimer was first synthesized using Boc-NH-PEG-NH2 (MW, 2000 Da), lysine and cholic acid as building blocks via solution phase condensation reactions. Fmoc peptide chemistry was used to couple Fmoc-Lys(Fmoc)-OH onto the unprotected amino group of PEG for three rounds to generate a third generation of dendritic polylysine.
