For the first time the two enantiomeric forms of the glycosidase inhibitor 1-azafagomine have been synthesised starting from d-and l-xylose. d-Xylose was converted to the 2,3,5tribenzylfuranose, which upon reductive amination with tert-butyl carbazate gave the protected 1-hydrazino-1-deoxypentitol i
Enantiospecific synthesis of [1-3H]-(+)-pseudoephedrine hydrochloride
✍ Scribed by John A. Hill; Jeffrey D. Scharver
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- French
- Weight
- 325 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The naturally occurring dextrorotary enantiomer (+)‐pseudoephedrine, 1, was synthesized (1) in the [^3^H]‐labelled form with specific activity 17.5 Ci/mmol suitable for development of a radioimmunoassay procedure. The chirally specific route from L‐alanine to [1‐^3^H]‐d‐pseudoephedrine hydrochloride was based on the use of α‐amino acids as chiral educts for asymmetric products as developed by Rapoport.
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