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Paradols
Paradols
are β-ketone hydroxyl
deoxygenation products of gingerols.
H
3
CO
CH
3
O
Paradols represent another subclass of
ginger ‘pungent principles’, and possess
marked bioactivity.
The content of paradols is more pronounced
in ginger extracts as opposed to the fresh
plant material.
HO
[6]-Paradol
H
3
CO
HO
O
CH
3
[8]-Paradol
H
3
CO
O
CH
3
HO
[10]-Paradol
Gingerdiols and Gingerdiones
H
3
CO
CH
3
OH
OH
(3
R
,5
S
)-[6]-Gingerdiol
H
3
CO
CH
3
O O
[6]-Gingerdione
H
3
CO
HO
CH
3
OH
OH
(3
S
,5
S
)-[6]-Gingerdiol
HO
OH
H
3
CO
HO
OH
(3
R
,5
S
)-[10]-Gingerdiol
CH
3
HO
O
H
3
CO
HO
O
CH
3
[8]-Gingerdione
O
H
3
CO
HO
O
[10]-Gingerdione
CH
3
OH
H
3
CO
HO
OH
(3
S
,5
S
)-[10]-Gingerdiol
CH
3
H
3
CO
HO
(CH
2
)
n
CH
3
O O
1-Dehydro-gingerdiones
Gingerdiones
are β-ketone hydroxyl
dehydrogenation products of gingerols;
include the subgroup of
1-dehydroginger-
diones.
Gingerdiols
are ketone reduction products
of gingerols
.