Compound	R1	R2	R3
1	H	H	O-β-d-glucopyranosyl
2	CH3	H	O-β-d-glucopyranosyl
3	H	O-β-d-glucopyranosyl	H
4	H	H	(6ʹʹ-O-p-coumaroyl)-O-β-d-glucopyranosyl
5	H	H	(6ʹʹ-O-p-hydroxybenzoyl)-O-β-d-glucopyranosyl