2S,3R)-2-[3-(4-Fluorophenyl)]propylamino-3-(3,4-di hydroxyphenyl)-3-hydroxypropionic acid pyrrolidine amide hydrobromide (SM-11044) was labeled with carbon-14 for use in mammalian metabolic studies. The synthesis was achieved according to the scheme shown in Fig. 5. Grignard reaction of 3,4-methylen
14C-labelling of a novel antiischaemic adenosine A1 agonist at purine C-8
β Scribed by Jacob S. Valsborg; Lars J. S. Knutsen; Christian Foged
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- French
- Weight
- 391 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0022-2135
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β¦ Synopsis
SUM MARY
A ''C-labelled form of 2-chloro-K[(R)-(2-benzoxazolyl)thio-2-propyl]adenosine a, a novel antiischaemic adenosine A, agonist, has been prepared in three steps from [8- '4C]-9-(2,3,5-tri-0-benzoyl-~-D-ribofuranosyl)-2,6-dichloropurine a. The overall radiochemical yield was 56%. The radiochemical purity was higher than 98% with a specific radioactivity of 36 mCi/mmol.
π SIMILAR VOLUMES
## Abstract Five hundred mCi of Potassium [^14^C]cyanide at a specific activity of 51 mCi/mmol was used to diastereoselectively introduce the carbonβ14 label into 1,6βhexanedial via a thermodynamically controlled asymmetric Strecker reaction using (__R__)β(β)β2βphenylglycinol as the chiral auxiliar
The synthesis of the title compound (3) is described. Treatment of a solution of triethyl [14C]orthoformate in dry chloroform with cis-[4-(2,5-diamino-6-chloro-4-pyrimidinyl) -amino] -2cyclopentenyl]carbinol (1) afforded crude 2. Hydrolysis of crude 2 with 2 N sodium Eydroxide gave 3 in 34% overall
A novel fungicide, (-) (E)-1-( 2,4-di chlorophenyl)-4,4-dimethyl-2-(1,2,4-triazol-1-yl)-1-penten-3-ol (S-3308 L) and i t s three o p t i c a l l y active stereoisaners were labeled w i t h carbon-14 a t the t r i a z o l e r i n g f o r use i n the metabolic and environmental f a t e studies. 1 ,2,