The isolation and characterisation of purpuride, a metabolite of Penicillium purpurogenum Stoll, is recorded. Its structural elucidation, by direct X-ray analysis and determination of the chirality of one of the asymmetric centres in the molecule, is described. Purpuride is the N-acetyl-L-valine ester (1) of 1α-hydroxydrim-8-en-12,11-olactone.
T. J. King, J. C. Roberts and D. J. Thompson, J. Chem. Soc., Perkin Trans. 1, 1973, 78 DOI: 10.1039/P19730000078
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