作者:R. C. Cambie、L. H. Mitchell、C. E. F. Rickard、P. S. Rutledge
DOI:10.1107/s0108270198008269
日期:1998.11.15
The stereochemistry of the epoxide ring of the title compound, 12,12-ethylenedioxy-8 alpha,9 alpha-epoxypodocarpan-19-oic acid, C19H28O5, prepared during studies aimed at converting podocarpic acid into precursors for the synthesis of biologically active quassinoids, has been confirmed by X-ray structure determination.