Some of the major structural types encountered in diterpenes are shown
below.
Abietane diterpenoids
Amphilectan diterpenoids
8,13-Abietadiene
O
O
Helioporin E
Beyerane diterpenoids
Briarane diterpenoids
15-Beyerene
O
OAc
O
H
O
Verecynarmin G
Cassane diterpenoids
Cembrane diterpenoids
O
OMe
O
OH
O
Caesaljapin
O
OAc
O
H
OAc
O
O
O
O
Bippinatin B
Cleistanthane diterpenoids
Cyathane diterpenoids
13(17), 15-Cleistanthadiene
12, 18-Cyathadiene
Daphnane diterpenoids
Dolabellane diterpenoids
O
OH
OH
OH
O
O
O
O
Ph
Daphnetoxin
OH
O
H
3,7-Dolabelladiene-9,12-diol
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CH6 NATURAL PRODUCT CHEMISTRY