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. Author manuscript; available in PMC: 2017 Dec 14.
Published in final edited form as: J Mater Chem B. 2016 Oct 21;4(46):7429–7440. doi: 10.1039/C6TB02049F

Scheme 3.

Scheme 3

Synthesis route of polymer mPEG-b-P(DPA45-r-PDSM(IV)6): (a) CH2Cl2, Et3N, 2-bromoisobutylryl-bromide; (b) PDMEDTA, CuBr, isopropanol, DMF, Anisole, 65°; (c) TECP, prodrug IV.