TABLE 4.

Chemical structures of triterpenes isolated from PVL─Part IV.

	Groups	R1	R2	R3	R4	R5	R6	R7	R8	R9
	(3) Maslinic acid	αOH	αOH	CH3	CH3	H	CH3	αOH	CH3	H
	(48) 2α,3α,23-trihydroxy-12-en-28-ursolic acid	αOH	βOH	CH3	CH3	H	H	H	CH3	CH3
	(54) 2α,3α,19α-trihydroxyurs-12-en-28-oic acid	αOH	αOH	CH2OH	CH3	H	CH3	αOH	CH3	H
	(57) 2α,3α,19α,23-tetrahydroxyurs-12en-28oic acid	αOH	αOH	CH2OH	CH3	H	CH3	H	CH3	H
	(59) 2α,3α,19α,24-tetrahydroxyurs-12en-28oic acid 28-O-D-glucopyranoside	αOH	βOH	CH2OH	CH3	Glc	CH3	αOH	CH3	H
(Lee et al.)	(69) 2α,3β,19α,24-tetrahydroxyurs-12en-28oic acid 28-O-D-glucopyranoside	αOH	αOH	CH2OH	CH3	Glc	CH3	αOH	CH3	H