14C-Labelled satigrel, or 4-cyano-5-(4'-methoxy tring-U-14CI phenyl)-5-(4"methoxyphenyl)-4-pentenoic acid was synthesized for drug metabolism and pharmacokinetic studies using 4,4'-diniethoxy [ring-U-W ] benzophenone as the starting material. The radiochemical yield was 10.0%. The specific radioacti
Synthesis of 14C-labelled butoxyethoxyethanol
✍ Scribed by J. B. A. Thijssen; C. G. M. Janssen; W. L. M. Verluyten; J. J. P. Heykants
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- French
- Weight
- 189 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
Department of Drug Metabolism, Janssen Phamceutica
Butoxyethoxyethanoll. an organic solvent used as carrier in the levamisole pour-on formulation, was synthesized a Hakosza etherification of l-%labelled brornobutano with mono tetrahydropyranyl (T.H.P.) protected diethylene glycol and subsequent removal of the T.H.P. protecting group. The compounds' synthetic yield was 88.8 X; it had a spectflc activity of 32.5 mCi/rmnol. The reaction product was radiochemically pure (99.6 $1 according to high-performance liquid chromatography and thin-layer chromatography in three solvent systems.
📜 SIMILAR VOLUMES
The synthesis of 14C-labelled crotamiton, which is a fungicide, an insecticide as well as a scabicide is described. Starting from 2-bromonitrobenzene and Cu14CN, 2-toluidine, labelled with 14C at the methyl group was prepared by the following sequence of reactions : N O ~-C ~H L + -~~C O O H
## Abstract [^14^C]Aminoguanidine was synthesized by the reaction of hydrazine sulphate with barium [^14^C]cyanamide in a one‐step synthesis, and conveniently isolated by crystallization as the bicarbonate salt. The yield was 32%.
## Abstract ^14^C‐labelled (+)‐limonene was conveniently prepared by the Wittig reaction of (+)‐1‐methyl‐4‐acetylcyclohexene with methyl‐^14^C‐triphenylphosphonium iodide.
## Abstract Isophosphamide labelled with ^14^C in the chloroethyl group attached to the exocyclic nitrogen has been synthesised by treatment of N‐3‐hydroxypropyl‐aziridine with phosphorus oxychloride and reaction of the resulting 2‐chloro‐3‐(2‐chloroethyl) tetrahydro‐2H‐1,3,2‐oxazaphosphorine‐2‐oxi