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. Author manuscript; available in PMC: 2023 Jun 15.
Published in final edited form as: Bioconjug Chem. 2022 May 11;33(6):1179–1191. doi: 10.1021/acs.bioconjchem.2c00142

Scheme 3. Synthesis of Drug-Oxazoline Conjugates (1–3)a.

Scheme 3.

aReagents and conditions: (a) Et3N, DMSO, RT, 82%; (b) Et3N, DMSO, RT; (c) DMC, Et3N, H2O/DMSO, 0 °C, 1, 73% for 2 steps, 2, 80% for 2 steps, 3, 70% for 2 steps.