De Carvalho J E, Torres L M, Lapa A J
Departamento de Fisiologia, UNESP, Brasil.
Mem Inst Oswaldo Cruz. 1991;86 Suppl 2:235-6. doi: 10.1590/s0074-02761991000600052.
The hydroalcoholic extract of the powdered bark of the Indian-snuff Maquira sclerophylla Duck was purified by column chromatography in silica-gel and the major cardenolide isolated from preparative TLC was identified by 1H-NMR, 12C-NMR and IR analyses. The spectra showed that the active substance has strophanthidin as the aglycone.
