De la chimie des ptérines. 78e Communication.. Synthèse de l'ester tripolyphosphorique de la tétrahydro-5, 6, 7, 8-D-néoptérine. Essai d'interprétation de la biosynthèse de la L-sépiaptérine
✍ Scribed by Siméon Antoulas; Max Viscontini
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- German
- Weight
- 264 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Synthesis of 5, 6, 7, 8‐Tetrahydro‐D‐neopterine tripolyphosphate. Attempt to Interpret the Biosynthesis of L‐Sepiapterine
The synthesis was achieved by phosphorylation of tetrahydro‐5, 6, 7, 8‐D‐neopterine with polyphosphoric acid. The product is sensitive to light, moisture and oxidation like the other tetrahydropetrines. After oxidation in aqueous solution, D, L‐sepiapterine was isolated in 5% yield. The oxidation of non‐phosphorylated tetrahydro‐5, 6, 7, 8‐D‐neopterine under the same conditions led to D‐sepiapterine without inversion of the configuration. These findings were used to give a tentative explanation for the biosynthesis of natural L‐sepiapterine from the D‐neopterine.
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