Fig. 2.

Nuclear magnetic resonance (NMR) spectra of SUSP-4. (A) ¹H spectrum. (B) ¹³C spectrum. (C) Dept-135 spectrum. (D) Heteronuclear single-quantum correlation spectrum. (E) ¹H-¹H correlated spectroscopy (COSY) spectrum. (F) Heteronuclear multiple bond correlation (HMBC) spectrum. (G) Nuclear overhauser effect spectroscopy (NOESY) spectrum. (H) Putative structure of SUSP-4. The “A−I” labeled in the diagram is the designation of the glycosidic bond. A: α-l-Araf-(1→; B: →5)-α-l-Araf-(1→; C: →2,5)-α-l-Araf-(1→; D: →6)-β-d-Galp-(1→; E: β-d-Galp-(1→; F: →4)-α-d-GalAp-(1→; G: →3,4)-α-d-GalAp-(1→; H: →4)-β-d-Xylp-(1→; and I: →2,4)-α-l-Rha-(1→. The detailed peaks information is listed in Table 4.