An expedient synthesis of (±)-2-amino-3-(3-hydroxy-5-methylisoxazol-4-yl)propionic acid hydrobromide via a 3-bromoisoxazole intermediate
✍ Scribed by Robert N. Hanson; Farid A. Mohamed
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1997
- Tongue
- English
- Weight
- 277 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0022-152X
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✦ Synopsis
Abstract
The excitatory, amino acid ±2‐amino‐3‐(3‐hydroxy‐5‐methylisoxazol‐4‐yl)propionic acid hydrobromide was prepared in gram quantities in an 3.3% overall yield from methylbut 2‐ynoate. The key step was the facile preparation of methyl 3‐bromo‐5‐methylisoxazole‐4‐carboxylate.
📜 SIMILAR VOLUMES
RS)-2-Amino-2-(3-hydroxy-5-methylisoxazol-4-yl)acetic acid (AMAA) is a potent and selective agonist at the NMDA subgroup of excitatory amino acid receptors. To probe its interaction with these receptors we have developed a synthesis of [3H]AMAA. Bromination of a protected form of AMAA with NBS follo
We have previously shown that (RS)-2-amino-3-[3-hydroxy-5-(2-methyl-2H-tetrazol-5-yl)isoxazol-4-yl]propionic acid (2-Me-Tet-AMPA) is a selective agonist at (RS)-2-amino-3-(3-hydroxy-5-methylisoxazol-4-yl)propionic acid (AMPA) receptors, markedly more potent than AMPA itself, whereas the isomeric com