TABLE 2.

Chemical structures of triterpenes isolated from PVL─Part II.

	Groups	R1	R2	R3	R4
	(22) Pruvuloside A	αOH	CH3	CH3	Glc2-Glc
	(19) Niga-ichigoside F1	βOH	CH2OH	CH3	Glc
	(20) Niga-ichigoside F2	αOH	CH2OH	CH3	Glc
(Zhang and Yang)	(23) Pruvuloside B	αOH	CH3	CH2OH	Glc