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1H NMR spectra (in D2O) of a) Alg-norb, b) CGGGRGDS, and c) Alg-norb reacted with 1 mM CGGGRGDS. The observed decrease in intensity of the double bonds of the norbornene groups after the reaction (highlighted in the blue box at 6.2 ppm) and the appearance of the peaks corresponding to the peptide sequence are highlighted in the red box at 1.7 ppm.
