Fomannosin (A) has been implicated in the phytopathogenic activity of the economically important wood rot fungus Fomes annosus which affects pine stands in the Southeastern United States. The structure of this unusual sesquiterpene was established by spectroscopic methods and by X-ray crystallograph
Biosynthesis of ravenelin from [1-13C]-acetate
β Scribed by Arthur J. Birch; Thomas J. Simpson; Philip W. Westerman
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- French
- Weight
- 173 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Results from the incorporation of [l,2-13C2]-and [2-2H3,1-13C]acetates into kinamycin D. indicate the involvement of identity of some of these are suggested.
Twelve of the twenty-five carbon atoms of streptonigrin are derived from three intact erythrose units. We reported4 that feeding [U-13 C6]-D-glucose (1) to growing cultures of Streptomyces flocculus ATCC 13257 yielded streptonigrin specifically labeled at all carbons. An analysis of the 13 13 C-C sp
## Abstract The origin of the carbon skeleton of verrucarin E **(1)** from acetate as precursor is confirmed. Incorporation studies with [1,2β^13^C]βacetate have demonstrated that two acetoacetate units couple together as shown in pattern **A** __(Scheme 2)__ and not as in **B**. Analysis of the de
## Abstract Sequential single frequency decoupling and partially relaxed __Fourier__ transform (PRFT) are used to assign the natural abundance ^13^CβNMR. spectra of cytochalasin B (phomin) (**1**) and cytochalasin D (**2**). Cultures of __Phoma spec.__ S 298 were fed [2β^13^C]βsodium acetate, and t