Bisabolane sesquiterpenes
H
H
OH
(−)-β-Bisabolene
(−)-α-Bisabolol
Cyclobisabolane sesquiterpenes
H
H
Sesquicaren
Elemane sesquiterpenes
O
β-Elemene
A component of turmaric
Curzerenone
A component of turmaric
Germacranes
O O
O
Germacrene A
Parthenolide
Germacrene D
Lepidozanes and bicyclogermacrane
sesquiterpenes
Bicyclogermacrene
Humulane sesquiterpenes
Humulene
A sesquiterpene from hops
Caryophyllane sesquiterpenes
H
H
β-Caryophyllene
A bioactive component of Cinnamomum zeylanicum
Cuparane and cyclolaurane
sesquiterpenes
Cuparene
Cyclolaurene
(Continued)
Major structural types
Specific examples
336
CH6 NATURAL PRODUCT CHEMISTRY