## Abstract Emodin, a precursor of chrysophanol in the biosynthesis of cynodontin by __Pyrenochaeta terrestris__, has been tritiated with a high specific radioactivity (12.5 Ci/mmol) by hydrogenolysis of bromomethyl emodin.
The synthesis of N-[3H] acetyl muramyl dipeptides of high specific radioactivity
โ Scribed by G. Baschang; D. E. Brundish; A. Hartmann; J. Stanek; R. Wade
- Publisher
- John Wiley and Sons
- Year
- 1983
- Tongue
- French
- Weight
- 198 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0022-2135
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๐ SIMILAR VOLUMES
+)-Pisatin, the phytoalexin produced by pea (Pisum sativuni) tissues on fungal infection or by abiotic treatment, has been tritiated with high specific radioactivity (23.9 Ci.mnol-1) by treatment with n-butyllithium and T 2 0 . CCC 0362-4803/96/06057945 01996 by John Wiley & Sons, Ltd.
The title compound has been prepared by two different approaches. The first involved a five-stage "hot" synthesis.where the tritiation step was selective debromination of a cyclic Fbromo-a-&unsaturated ketone. double bond was protected by formal aromatisation. this intermediate was determined by pro