## Abstract An easy technique for introduction of tritium into the 1‐position of sphingosine was developed, employing regiospecific oxidation of the primary hydroxy group followed by reduction with NaB^3^H~4~. An improved preparation of __N__,__N__‐dimethylsphingosine and its quaternization are als
The synthesis and resolution of tritiated 4-amino-3-phenylbutanoic acid ([3H]R- and [3H]S-β-phenylgaba)
✍ Scribed by Rujee K. Duke; Robin D. Allan; Colleen A. Drew; Graham A. R. Johnston; Kenneth N. Mewett; Mervyn A. Long; Chit Than
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- French
- Weight
- 396 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0022-2135
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✦ Synopsis
Abstract
A synthesis of [^3^H]R‐ and [^3^H]S‐4‐amino‐3‐phenylbutanoic acid ([^3^H]R‐ and [^3^H]S‐β‐phenylGABA) from the unsaturated intermediate by catalytic hydrogenation using tritium gas in the presence of palladium on charcoal is reported. The [^3^H]R‐ and [^3^H]S‐diastereoisomers of pantolactone ester of β‐phenylGABA were separated by HPLC.
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