[Cardiac glycoside composition in the leaves of Digitalis schischkinii]

Cardenolide glycosides of stem leaves of D. schischkinii, at the same age and location, were analysed quantitatively over several vegetation periods and the limit values found are tabulated. Total glycoside content of the leaves was 0.86-1.0%. Digoxigenin glycosides was 50% and the sum of lanatosid C, desacetyllanatosid C, acetyldigoxin and digoxin was 40% of the content. As yet unknown glycosides diginatigenin-digilanidobioside, the corresponding secondary glycoside and diginatigenin-bisdigitoxoside were identified as minor compounds.