## Abstract A method of carbon‐^14^C introduction into the molecule of a new drug 4‐methyl‐2‐pyridyl‐2‐furamide hydrochloride /MEPAF/ has been elaborated and furan‐2‐^14^C‐carboxylic acid has been synthesized. Radioactivity distribution and chemical yields in this synthesis were established.
The synthesis of 14C-labelled 1-(4-chlorophenyl) -2-methyl-2-amino-propane hydrochloride (chlorphentermine, Desopimon®)
✍ Scribed by J. Engler; L. Pallos
- Publisher
- John Wiley and Sons
- Year
- 1973
- Tongue
- French
- Weight
- 170 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0022-2135
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✦ Synopsis
Abstract
The preparation of ^14^C labelled 1‐(4‐chlorophenyl)‐2‐methy 1‐2‐aminopropane hydrochloride is described. The radioactive carbon was introduced into the central position of the aminopropyl group in order to study the pharmacological properties and mode of action of the anorexigenic drug. The synthesis started from Ba^14^CO~3~, involved 3 steps, and a radiochemical yield of 23% was obtained. The chemical and radiochemical purity of the end‐product was proved by thin layer chromatography and autoradiography.
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## Abstract ^14^C‐labelled (S)‐(+)‐2‐[4‐(p‐fluorobenzoyl)‐1‐piperidyl]‐1‐naphthylethanol hydrochloride (5), an anti‐ischemic drug, was synthesized for studying the pharmacokinetic profiles of the compound in four steps using 2‐[carbonyl‐^14^C]acetonaphthone (1) as a labelled starting material.
Synthesis of I4C-Labeled Pramiracetam Hydrochloride, E-[2-(Bis[ 1-me thyle thyl 1 aminole thyl ] -2-0x0-l -p y r r o l i d i n eac.etamide-a-14C Hydrochloride, CI-879 Hydrochloride1
## Abstract The title compound 9 was prepared by the route outlined in Scheme I. [^14^C]Thiourea (1) was condensed with ethyl 4‐bromo‐3‐oxo‐2‐methoxyiminoacetate (2), providing ethyl 2‐(2‐amino‐4‐[2‐^14^C]thiazolyl)‐2‐methoxyiminoacetate (3), as the pure Z‐isomer. Saponification gave the amino acid
## Abstract Carbon‐14 labeled 4‐[4‐[2‐[2‐[bis(4‐chlorophenyl)methoxyethylsulfonyl] [1‐^14^C]ethoxy]phenyl]‐1,1,1‐trifluoro‐2‐butanone was prepared in a six step radioactive synthesis from 2‐bromo[1‐^14^C]acetic acid. The overall radiochemical yield was 2.2%. The specific activity of the final produ