## Abstract Preparation of the title compound, tracer substances required for the development of the fasciollide clorsulon, is described. The ringโuโ^14^C variety was obtained in 42.2% yield overall from purchased [ringโuโ^14^C]acetophenone.
Syntheses of carbon-14 and sulfur-35 labeled 2-(morpholinothio)benzothiazoles and carbon-14 labeled 2-(cyclohexylaminothio)benzothiazoles
โ Scribed by A Tanaka; M Fukuoka; T Adachi; T Yamaha
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- French
- Weight
- 366 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0022-2135
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## Abstract Two labeled isotopomers of Lโtyrosine, LโTyr, have been synthesized using specific properties of the enzymes phenylanine ammonia lyase, PAL, and Lโphenylalanine hydroxylase. In an intermediate step [1โ^14^C]โ, and [2โ^14^C]โLโphenylalanine, LโPhe, have been obtained from [1โ^14^C]โ, and