TABLE 1.
Chemical structures of triterpenes isolated from PVL─Part I.
| Groups | R1 | R2 | R3 | R4 | R5 | R6 | |
|---|---|---|---|---|---|---|---|
|
(26) Methyl ursolate | H | βOH | Me | Me | Me | H |
| (28) Methyl oleanolate | H | βOH | Me | Me | H | Me | |
| (73) Methyl 2α,3α-dihydroxyurs-12-en-28-oate | OH | αOH | Me | Me | Me | H | |
| (32) Methyl 3-epimaslinate | OH | αOH | Me | Me | H | Me | |
| (75) Methyl 2α,3α,24-trihydroxyursa-12,20 (30)-dien-28-oate | OH | αOH | Me | CH2OH | Me | H | |
| (33) Methyl 2α-hydroxyursolate | OH | βOH | Me | Me | Me | H | |
| (29) Methyl maslinate | OH | βOH | Me | Me | H | Me | |
| (76) Methyl 2α,3α,23-trihydroxyolean-12-en-28-oate | OH | αOH | CH2OH | Me | H | Me | |
| (Kojima and Ogura) | (77) Methyl 2α,3α,24-trihydroxyolean-12-en-28-oate | OH | αOH | Me | CH2OH | H | Me |