Furthermore, the coupling patterns of H-1″ (d, J =10.0 Hz)
and H-1‴ (s) indicated the sugar moiety had 1″-β and
1‴-α configurations, respectively [26]. Thus, the structure
of 2 was established as apigenin-8-C-β-[6-deoxy-2-O-(α-
L-rhamnopyranosyl)-ribo-hexopyranos-3-uloside].