SCHEDULED MAINTENANCE
The biosynthesis of citreamicin 1 has been studied by feeding 13C- and 18O-labelled precursors to Micromonospora citrea cultures. 13C-NMR spectroscopic analysis of the enriched products demonstrated a labelling pattern indicating that the antibiotic is derived from a polyketide which undergoes rearrangement by a mechanism unique for xanthone biosynthesis.
G. T. Carter, D. B. Borders, J. J. Goodman, J. Ashcroft, M. Greenstein, W. M. Maiese and C. J. Pearce, J. Chem. Soc., Perkin Trans. 1, 1991, 2215 DOI: 10.1039/P19910002215
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