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. Author manuscript; available in PMC: 2018 Feb 1.
Published in final edited form as: Org Biomol Chem. 2017 Feb 1;15(5):1222–1227. doi: 10.1039/c6ob02603f

Figure 2.

Figure 2

NMR characterization of degradation oligosaccharides (R = pNP). Panel I, II, III show the 1D 1H NMR spectra of compound 3, 5 and 7, respectively. Peaks corresponding to the anomeric protons of these compounds can be clearly identified. Panel IV, V show the selected H-H correlation in 2D H-H COSY spectrum of compound 5 and 7, respectively. Three sets of peaks between 3.4–3.7 ppm in 1H NMR spectrum were from glycerol that came from the dialysis membrane.