## Abstract 1‐(4‐Chlorobenzyl)‐3‐methyl‐3‐(2‐hydroxyethyl)‐thiourea labelled with ^14^C at its urea group was synthesised starting from potassium cyanide‐^14^C, via potassium thiocyanate‐^14^C, 4‐chlorobenzyl‐thiocyanate‐^14^C and 4‐chlorobenzyl‐isothiocyanate‐^14^C. The conditions of the isomerisa
Synthesis of 14C-labelled 4-(2-hydroxy-3-isopropylaminopropoxy)-2-methyl-indole (mapindolol)
✍ Scribed by V. O. Illi; J. Heindl; J. Balzer; W. Schwartz
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- French
- Weight
- 157 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0022-2135
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✦ Synopsis
Abstract
Mepindolol, a potent ß‐adrenoceptor blocking agent, was labelled with ^14^C by two different routes yielding the 2‐[^14^C]methyl and [2‐^14^C] products. While the first alternative was abandoned because of low overall yield, the latter route provided mepindolol with a specific activity of 2.06 GBq/mmole (55.8 mCi/mmole) and in a radiochemical yield of 40% starting from Ba^14^CO~3~.
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