Tetramethylpyrazine
 | |
| Names | |
|---|---|
| IUPAC name
2,3,5,6-Tetramethylpyrazine | |
| Other names
Ligustrazine; Tetrapyrazine | |
| Identifiers | |
| 1124-11-4 | |
| 3D model (Jmol) | Interactive image |
| ChEBI | CHEBI:133246 |
| ECHA InfoCard | 100.013.084 |
| PubChem | 14296 |
| |
| |
| Properties | |
| C8H12N2 | |
| Molar mass | 136.20 g·mol−1 |
| Melting point | 84–86 °C (183–187 °F; 357–359 K) |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Tetramethylpyrazine, also known as ligustrazine, is an antiinflammatory compound isolated from the fermented food natto. When purified, it is a colorless solid. Its biosynthesis involves amination of acetoin, the latter derived from pyruvate.[1]
The compound has attracted much attention for its medicinal properties.[2][2] and in fermented cocoa beans.[3]
It exhibited in vivo nootropic activity in rats.[4]
References
- ↑ Takuo Kosuge, Tahei Adachi & Hiroko Kamiya "Isolation Of Tetramethylpyrazine From Culture Of Bacillus Natto, And Biosynthetic Pathways Of Tetramethylpyrazine" Nature 1962, volume 195, 1103 .doi:10.1038/1951103a0
- 1 2 Kao, TK; Chang, CY; Ou, YC; Chen, WY; Kuan, YH; Pan, HC; Liao, SL; Li, GZ; Chen, CJ (2013). "Tetramethylpyrazine reduces cellular inflammatory response following permanent focal cerebral ischemia in rats". Experimental neurology. 247: 188–201. doi:10.1016/j.expneurol.2013.04.010. PMID 23644042.
- ↑ Effect of mass and turning time on free amino acid, peptide-N, sugar and pyrazine concentration during cocoa fermentation. P Hashim, J Selamat, S Muhammad, S Kharidah and A Ali, Journal of the Science of Food and Agriculture, 1998, Volume 78, pages 543–550. doi:10.1002/(SICI)1097-0010(199812)78:4<543::AID-JSFA152>3.0.CO;2-2
- ↑ Wu, W; Yu, X; Luo, XP; Yang, SH; Zheng, D (2013). "Tetramethylpyrazine protects against scopolamine-induced memory impairments in rats by reversing the cAMP/PKA/CREB pathway". Behavioural Brain Research. 253: 212–6. doi:10.1016/j.bbr.2013.07.052. PMID 23916742.
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