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. Author manuscript; available in PMC: 2018 Apr 26.
Published in final edited form as: Catal Sci Technol. 2017 Apr 26;7(12):2474–2485. doi: 10.1039/C7CY00587C

Scheme 2.

Scheme 2

The CuAAC reaction of the peptide AP (50 µM) with propargyl alcohol (50 µM), ligand (100 µM), CuSO4 (50 µM), and sodium ascorbate (500 µM) in Milli-Q water at 24 ± 1 °C in air to form the product TP and the oxidation byproducts (2-imidazolidone derivatives) API/II/III, TPI/II/III as well as a complex mixture of other oxidation byproducts.