This paper describes the synthesis of deuterium‐labeled pregabalin. The stable isotopic‐labeled compound was obtained in nine steps starting from the commercially available 4‐[^2^H~11~]methylvaleric acid as the stable‐labeled reagent. It is used as an internal standard for analysis and metabolic stu
Synthesis of deuterium-labeled felbamate from diethyl phenylmalonate
✍ Scribed by Yong M. Choi; Norbert Kucharczyk; R. Duane Sofia
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- French
- Weight
- 202 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0022-2135
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✦ Synopsis
USA
A synthesis of felbamate-d, (2-phenyl-1,3-propanediol-l,l,3,3-d, dicarbamate) starting from diethyl phenylmalonic acid ester and lithium aluminum deuteride was developed. material to felbamate-d, via the intermediate, 2-phenyl-1,3-propanediol- 1,1,3,3-d,.
The final overall yield was 44%. The isotope purity was 99.2%.
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## Abstract Ethyl isocyanate, N‐methylacetamide, N‐methylacetamide‐d3, and __N__‐methylacetamide‐d6 were reduced with lithium aluminum deuteride and then nitrosated with sodium nitrite to yield, respectively, nitrosomethyl (‐__d__3) ethylamine, nitrosomethylethyl (α‐**d2**) amine, nitrosomethylethy