Knoll A.g. Chemische Fabriken

Guenter Neugebauer

Hans Peter Albrecht

Cardioactive glycosides of the formula ##STR1## are disclosed, wherein R.sub.1 is saturated aliphatic hydrocarbon having 1 - 4 carbon atoms or unsaturated aliphatic hydrocarbon having 2 - 4 carbon atoms or phenyl and R.sub.2 is hydrogen or hydroxyl, as are methods for making the same by reacting the corresponding aglycone with an acylated 1-halo-hexopyranose of the formula ##STR2## wherein Hal is halogen, R.sub.3 is hydrogen or alkanoyloxy having 1 - 4 carbon atoms, and R.sub.4 is alkanoyl having 1 - 4 carbon atoms or benzoyl, and subsequently cleaving the acyl groups.

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Mannheim, Germany

Guenter Neugebauer