Doc:FL63AG
From Metabolomics.JP
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| − | {| style="text-align:center" | + | {| class="wikitable" style="text-align:center" |
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| − | + | ! Structure | |
| [[Image:FL63AGNS0002.png|150px]] | | [[Image:FL63AGNS0002.png|150px]] | ||
| [[Image:FL63AGNS0003.png|150px]] | | [[Image:FL63AGNS0003.png|150px]] | ||
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| [[Image:FL63AGNS0001.png|150px]] | | [[Image:FL63AGNS0001.png|150px]] | ||
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| − | + | ! Name | |
| [[FL63AGNS0002|(+)-Gallocatechin or<br/>D-Gallocatechin]] | | [[FL63AGNS0002|(+)-Gallocatechin or<br/>D-Gallocatechin]] | ||
| [[FL63AGNS0003|(-)-Epigallocatechin or<br/> L-Epigallocatechin]] | | [[FL63AGNS0003|(-)-Epigallocatechin or<br/> L-Epigallocatechin]] | ||
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| [[FL63AGNS0001|(-)-Epigallocatechin gallate or EGCG]] | | [[FL63AGNS0001|(-)-Epigallocatechin gallate or EGCG]] | ||
|- | |- | ||
| − | + | ! B-ring stereo | |
| ↓ || ↓ || ↓ || ↓ | | ↓ || ↓ || ↓ || ↓ | ||
|- | |- | ||
| − | + | ! 3-Hydroxyl stereo | |
| ↑ || ↓ || ↑ || ↓ | | ↑ || ↓ || ↑ || ↓ | ||
|- | |- | ||
| − | + | ! Catechins | |
| [[FL63ACNS0001|(+)-Catechin]] | | [[FL63ACNS0001|(+)-Catechin]] | ||
| [[FL63ACNS0002|(-)-Epicatechin]] | | [[FL63ACNS0002|(-)-Epicatechin]] | ||
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Revision as of 01:21, 19 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 | 
|
|
|
|
|---|---|---|---|---|
| Name | (+)-Gallocatechin or D-Gallocatechin |
(-)-Epigallocatechin or L-Epigallocatechin |
(+)-Gallocatechin gallate or GCG | (-)-Epigallocatechin gallate or EGCG |
| B-ring stereo | ↓ | ↓ | ↓ | ↓ |
| 3-Hydroxyl stereo | ↑ | ↓ | ↑ | ↓ |
| Catechins | (+)-Catechin | (-)-Epicatechin |
