154
HOOC
COOH
162
163
OH
COOH
164
COOH
165
COOH
167
COOH
168
HO
HO
HO
COOH
166
HO
HO
HO
HO
HO
OH
P450
P450
P450
P450
Fig. 116 Structures and formation of 162–168. Reactions catalyzed by different enzymes are
shown by arrows with different colors. The structure of 154 is also shown in Fig. 109
140
OH
143
COOH
169
COOH
OH
170
P450
P450
Fig. 117 Structures and formation of 169 and 170. The structures of 140 and 143 are also shown in
Figs. 101 and 102
Sesterterpenoids
67