Table 2.

3-O-Chromone glycosides with their sources and biological activities.

No.	Compound	Source	Biological Activity
2	3,5,7-trihydroxychromone-3-O- β-d-xylopyranoside	Rhododendron ovatum roots [10] Eurya japonica stems [11]	Inhibitory effects on LPS (Lipopolysaccharide)-induced NO (Nitric Oxide) production with inhibition rate 36.24 ± 1.29% at 20 μg/mL [11]
3	3,5,7-trihydroxylchromone-3-O- α-l-arabinopyranoside	Rhododendron spinuliferum aerial parts [12]	Inhibition of NO production in LPS-stimulated RAW 264.7 cells with an IC50 value more than 100 mM [12]
4	Eucryphin (5,7-dihydroxy-3-(α-O-l-rhamnopyranosyl)- 4H-l-benzopyran-4-one)	Eucryphia cordifolia bark [8] Astilbe thunbergii rhizomes [13]	Norepinephrine-enhancing lipolytic effect 6.432 ± 0.014 FFA µmol/mL at 1000 µg [13] Enhancing effect on burn wound repair at 100 mg ointment per mouse [14]
	Smiglanin (3,5,7-trihydroxychromone-3-O- α-l-rhamnopyranoside)	Smilax glabra roots [9]	No reported biological activity
5	5,7-Dihydroxy-4H-chromen-4-one- 3-O-β-d-glucopyranoside	Eurya japonica stems [11]	Inhibitory effects on LPS-induced NO production with inhibition rate 53.79 ± 1.78% at 20 μg/mL [11]