Doc:FL63AG
From Metabolomics.JP
(Difference between revisions)
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| [[Image:FL63AGNS0002.png|150px]] | | [[Image:FL63AGNS0002.png|150px]] | ||
| [[Image:FL63AGNS0003.png|150px]] | | [[Image:FL63AGNS0003.png|150px]] | ||
+ | | [[Image:FL63AGNS0017.png|150px]] | ||
+ | |- | ||
+ | ! Name | ||
+ | | [[FL63AGNS0002|(+)-Gallocatechin or<br/>D-Gallocatechin; GC]] | ||
+ | | [[FL63AGNS0003|(-)-Epigallocatechin or<br/> L-Epigallocatechin; EGC]] | ||
+ | | [[FL63AGNS0002|(-)-Gallocatechin or<br/>L-Gallocatechin]] | ||
+ | |- | ||
+ | ! B-ring stereo | ||
+ | | ↓ || ↓ || ↑ | ||
+ | |- | ||
+ | ! 3-Hydroxyl stereo | ||
+ | | ↑ || ↓ || ↓ | ||
+ | |- | ||
+ | ! Gallate form | ||
| [[Image:FL63AGNS0004.png|150px]] | | [[Image:FL63AGNS0004.png|150px]] | ||
| [[Image:FL63AGNS0001.png|150px]] | | [[Image:FL63AGNS0001.png|150px]] | ||
+ | | [[Image:FL63AGNS0018.png|150px]] | ||
|- | |- | ||
− | ! | + | ! |
− | + | ||
− | + | ||
| [[FL63AGNS0004|(+)-Gallocatechin gallate or GCG]] | | [[FL63AGNS0004|(+)-Gallocatechin gallate or GCG]] | ||
| [[FL63AGNS0001|(-)-Epigallocatechin gallate or EGCG]] | | [[FL63AGNS0001|(-)-Epigallocatechin gallate or EGCG]] | ||
+ | | [[FL63AGNS0018|(-)-Gallocatechin gallate]] | ||
|- | |- | ||
! B-ring stereo | ! B-ring stereo | ||
− | | ↓ || ↓ || & | + | | ↓ || ↓ || ↑ |
|- | |- | ||
! 3-Hydroxyl stereo | ! 3-Hydroxyl stereo | ||
− | | ↑ || &darr | + | | ↑ || ↓ || ↓ |
|- | |- | ||
! Catechins | ! Catechins | ||
| [[FL63ACNS0001|(+)-Catechin]] | | [[FL63ACNS0001|(+)-Catechin]] | ||
| [[FL63ACNS0002|(-)-Epicatechin]] | | [[FL63ACNS0002|(-)-Epicatechin]] | ||
+ | | [[FL63ACNS0004|ent-Catechin]] | ||
|} | |} |
Revision as of 11:41, 24 December 2009
Gallocatechins refer to a subgroup of Flavan 3-ol derivatives (FL63AG). Compared to catechins, they have an additional phenolic hydroxyl group. Catechin gallates are gallic acid esters of the catechins, and (-)-Epigallocatechin gallate (EGCG) is the most abundant catechin in green tea (but not in black tea).
Structure | ![]() |
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---|---|---|---|
Name | (+)-Gallocatechin or D-Gallocatechin; GC |
(-)-Epigallocatechin or L-Epigallocatechin; EGC |
(-)-Gallocatechin or L-Gallocatechin |
B-ring stereo | ↓ | ↓ | ↑ |
3-Hydroxyl stereo | ↑ | ↓ | ↓ |
Gallate form | ![]() |
![]() |
![]() |
(+)-Gallocatechin gallate or GCG | (-)-Epigallocatechin gallate or EGCG | (-)-Gallocatechin gallate | |
B-ring stereo | ↓ | ↓ | ↑ |
3-Hydroxyl stereo | ↑ | ↓ | ↓ |
Catechins | (+)-Catechin | (-)-Epicatechin | ent-Catechin |