This paper reports application of the one-dimensional 13C NMR "extended" distortionless enhancement by polarization transfer (DEPT) editing method to the determination of hexopyranose ring 13C
nuclei. Relative spatial arrangements of the vicinal protons in the local environment of a skeletal carbon atom are determined from the signs of intensity modulation profiles and connected with their specific
positions in the ring. In combination with a computer simulation program, the "extended" DEPT sequence allows the straightforward and unambiguous assignment of the hexopyranose ring carbon atoms.
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