14C-Labelled 6-hydroxy-5,7-dimethyl-2-(methylamino)-4-(3-pyridylmethyl)benzothiazole dihydrochloride (14C-E3040 dihydrochloride), required for a study of the phrmacokinetic profile of E3040, a novel dual inhibitor of 5-lipoxygenase and thromboxane A2 synthetase, was synthesized in one step using [2-
Synthesis of ring-14C-labelled 4(3′-, 6′-dimethyl-3′-heptyl)-phenol
✍ Scribed by J. O. Lalah; D. Lenoir; B. Henkelmann; N. Hertkorn; K. Günther; K.-W. Schramm; A. Kettrup
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- French
- Weight
- 79 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0022-2135
- DOI
- 10.1002/jlcr.474
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Ring‐^14^C‐labelled 4(3′‐, 6′‐, dimethyl‐3′‐,heptyl)‐phenol (NP), an isomer of paranonyl phenol was synthesized for use in aquatic toxicity and metabolism studies. A very efficient method involving alkylation of ring‐^14^C‐labelled anisole and tertiary alkyl bromide (3‐bromo‐3,6‐dimethyl heptane) with AlCl~3~ followed by cleavage of the resultant ether with BBr~3~ was used giving a 24% yield ring labelled ^14^C‐NP (specific activity: 16.205 MBq/mg and purity >95% by HPLC) after TLC separation. Copyright © 2001 John Wiley & Sons, Ltd.
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