title: Subalpinoside (S1), an Unknown Oleandrigenin Glycoside and Other Cardenol from Digitalis subalpina var. subalpina.
abstract: From the leaves of DIGITALIS SUBALPINA Br.-Bl. var. SUBALPINA an oleandrigenin glycoside was isolated as the main cardiotonic compound besides some known glycosides such as evatromonoside, lanatoside A and B, gitoroside, and others. The structure of this compound was elucidated by spectroscopic methods ( (1)H-, (13)C-, 2D-NMR spectroscopy) as gluco-oleandrigenin digitoxoside. This is the first report of the occurrence of oleandrigenin derivatives in a DIGITALIS species.
authors.affiliation: Institut für Pharmazeutische Biologie der Philipps-Universität Marburg, D-3550 Marburg/L., Federal Republic of Germany.
authors.forename: J J
authors.initials: JJ
authors.lastname: Lichius
authors.forename: D E
authors.initials: DE
authors.lastname: Khyari
authors.forename: M
authors.initials: M
authors.lastname: Wichtl