Figure 5.
(a) Anomeric region of 1H NMR spectra from 6-OH and 6-OSO3Na S-glycosides 1 and 2 (bottom to top), (b) anomeric region of 1H NMR spectra from 6-OH and 6-OSO3Na O-glycosides 3 and 4 (bottom to top), (c) scheme showing redundant J-couplings across the β (1 → 4) O- and S-glycosidic linkages, and (d) redundant J-couplings across the β (1 → 4) O- and S-glycosidic linkages values in Hz. n.d, not detectable.