Abstract 3-Keto-derivatives of the cardenolides digitoxigenin and cardiogenin were prepared with subsequent conversion to new ketoimines (1–19, 24–44), the oxime (23), and for the first time to pure cardiogenin (14, 16-dianhydrogitoxigenin, 20), its acetate (21), and
![Card-20(22)-enolide,3-[(O-b-D-glucopyranosyl-(1®4)-O-3-O-acetyl-2,6-dideoxy-b-D-ribo-hexopyranosyl-(1®4)-O-2,6-dideoxy-b-D-ribo-hexopyranosyl-(1®4)-2,6-dideoxy-b-D-ribo-hexopyranosyl)oxy]- Structure](https://image.chemsrc.com/caspic/202/17575-20-1.png)
