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. Author manuscript; available in PMC: 2021 Oct 19.
Published in final edited form as: ACS Appl Bio Mater. 2020 Sep 17;3(10):6944–6958. doi: 10.1021/acsabm.0c00823

Scheme 1. Synthetic route for small molecule nitrohemyl-carhamate-PEG4-azide (NB-azide).

Scheme 1.

Reagents and conditions as follows: a) azido-tetraethyleneglycol-amine in anhydrous DCM at room temperature and b) LiOH in 2:1 THF to DI water at room temperature.