901943.fig.001
Figure 1: The chemical structures of the ten target compounds ((1) ferulic acid; (2) caffeic acid; (3) protocatechuic acid; (4) vanillic acid; (5) quercetin; (6) isorhamnetin; (7) typhaneoside; (8) paeoniflorin; (9) tetrahydropalmatine; (10) senkyunolide I).