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Differential Hydrogen Exchange During Biosynthesis of Cytochalasins B and D

✍ Scribed by Ronald Wyss; Christoph Tamm; John C. Vederas


Publisher
John Wiley and Sons
Year
1980
Tongue
German
Weight
255 KB
Volume
63
Category
Article
ISSN
0018-019X

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✦ Synopsis


Abstract

Sodium [2‐^13^C,2‐^2^H~3~]acetate was incorporated into cytochalasin B(1) by Phoma exigua and into cytochalasin D (2) by Zygosporium masonii. The ^13^C‐NMR. and ^2^H‐NMR. of the metabolites showed that most of the deuterium was lost except at carbon atoms which are in polyketide chain‐initiating units.


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Biosynthesis of the Cytochalasans. Part
✍ Werner Graf; Jean-Louis Robert; John C. Vederas; Christoph Tamm; Philippa H. Sol πŸ“‚ Article πŸ“… 1974 πŸ› John Wiley and Sons 🌐 German βš– 683 KB

## Abstract Sequential single frequency decoupling and partially relaxed __Fourier__ transform (PRFT) are used to assign the natural abundance ^13^C‐NMR. spectra of cytochalasin B (phomin) (**1**) and cytochalasin D (**2**). Cultures of __Phoma spec.__ S 298 were fed [2‐^13^C]‐sodium acetate, and t

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