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A) Synthetic scheme of pLAn-SS-CTX conjugates (n = 15 or 50). a) DIEA, DCM, reflux; b) DMAP, DCM, reflux; c) Sn(Oct)2, toluene, 140 °C; d) DMAP, DCM, reflux. B) 1H NMR spectra of pLA15-SS-CTX (i) and pLA50-SS-CTX (ii) conjugates measured in CDCl3. C-D) Characterization of polylactides (pLA15 and pLA50) and pLA-drug conjugates using GPC measurements in THF. Mn, number-average molar mass; Đ, dispersity.
