Summary
The relative configurations of rifamycin B and related rifamycins have been determined by X-ray analysis and in part by NMR spectroscopy. The absolute configuration has been derived from the configuration of a degradation product, the dextrorotatory α,α′-dimethyl pimelic acid.
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Leitich, J., Oppolzer, W. & Prelog, V. Über die Konfiguration des Rifamycins B und verwandter Rifamycine. Experientia 20, 343–344 (1964). https://doi.org/10.1007/BF02171086
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DOI: https://doi.org/10.1007/BF02171086