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. 2021 Nov 5;78(24):8187–8208. doi: 10.1007/s00018-021-03981-w

Fig. 3.

Fig. 3

Oxidation pathways of HMF and Glycerol. a HMF oxidation pathway. The symbols next to each compound are used to denote the corresponding peaks in the NMR spectra comprising Figs. S19–S23. b Glycerol oxidation pathway showing l- and d-glyceraldehyde. [O] represents a generic oxidant