10. TERPENOIDS: STRUCTURE AND DISTRIBUTION
545
TABLE XII (continued)
Entagenic acid
(CDLVIII)
HO
COOH
Oleanolic acid
(CDLIX)
HO
HO
OH
CHoOH
Chichipegenin
(CDLX)
COOH
Glycyrrhetinic acid
(CDLXII)
a) R = CO-C(CH 3 )=CH-CH 3
b) R = CO.C=CC
a) Lantadene A
= Rehmannic acid
(CDLXIV)
HO
COOH
HO
b) Lantadene B
(CDLXV)
Glabrinic acid
(CDLXI)
OH
CO
Dumortierigenin
(CDLXin)
COOH
Siaresinolic acid
(CDLXVI)