Figure 6.

¹H–¹³C HSQC spectra obtained for: (A) WS-OSL [9]; (B) WS-ASOL-SOX; and (C) WS-MSAIOL-SOX (PG₁, phenyl glycoside (linkages); αX₁, (1→4)-α-d-xylopyranoside; βX₁, (1→4)-β-d-xylopyranoside; X3₁, 3-O-acetyl-β-d-xylopyranoside; X₁/Glc₁, β-d-xylopyranoside/β-d-glucopyranoside). (D) Structural representation of postulated LCC motifs (PG, phenyl glycoside; BE, benzyl ether; GE, γ-ester). Assignments in (C) are based on earlier reports [13,25,26]. Circles in (C) indicate positions of cross peaks that would be indicative of benzyl ether-type LCC-structures, indicated as “not observed” in (D).