Procedures for the labelling of the anti-allergic drug, sodium cromoglycate, with both tritium and deuterium are described. by acid catalysed exchange with deuterosulphuric acid. The 2-2H and Z-3H isotopomers were prepared via borodeuteride and borotritide reductions of an 0x0-precursor. Sodium [ 3
Preparation of biliverdin and bilirubin labelled with isotopic hydrogen at the central bridge
โ Scribed by Diego Monti; Roberto Sala; Paolo Manitto
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- French
- Weight
- 167 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0022-2135
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๐ SIMILAR VOLUMES
Hydrogen-tritium exchange labelling methods proved to be unsatisfactory for the preparation of tritiated DL-a-tocopherol at high specific activity. The preparation of a-tocopherol specijcally labelled in the 5-methyl hydrogen positions is described : the method permits specific activities in the cur
## The r e c e n t l y r e p o r t e d s y n t h e a i s o f C-3 l a b e l e d dehydro-2-norbornyt and 2-norbornyt d e r i v a t i v e s ( 1 ) was found t o be i n e r r o r . Only about 7 0 % o f t h e " C -l a b e l was l o c a t e d a t C-3, t h e o t h e r 30% b e i n g found a t C-2. One o f t