Synthesis of deuterium labeled 1,3-dimethyluric acid
✍ Scribed by Kumiko Mamada; Takashi Furuta; Yasuji Kasuya
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- French
- Weight
- 334 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
A synthetic procedure for l13-di(trideuteromethyl)uric acid is described. Deuterium labeling of the N-1 and N-3 positions w a s achieved by methylation of 4-amino-5carbethoxyuracil with di( trideuteromethy1)-sulfate followed by cyclization of the dimethylated intermediate by heating. The synthesis resulted in a product with 99.4% d isotopic purity, which is selectively deuterated in the methy% groups at the N-1 and N -3 positions and chemically pure.
📜 SIMILAR VOLUMES
## Abstract A convenient synthesis is reported of lithocholic acid labelled in high isotopic purity with two atoms of deuterium at C‐11. Incorporation of deuterium is achieved by base‐catalyzed equilibration of a 12‐oxo bile acid in heavy water. The product is converted __in situ__ into its tosylhy
## Abstract Both R‐ and S‐ enantiomers of 3‐monodeuterated lactic acid ([3‐^2^H]‐2(R) and 2(S)‐hydroxypropanoic acids) were synthesized by regiospecific nucleophilic opening of diastereoisomer epoxides derived from D‐mannitol, with lithium aluminium deuteride. Spectroscopic analysis of the product
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
Several methods for the specific deuteration of cannabmoids are described. Deuteration of the phenolic ring was accomplished by treatment with BF, .Et10 followed by quenching with a solution of Na, CO, in Da 0 resulting in deuterium incorporation in both the 2 and 4 positions. Regioselective incorpo