Summary
Bisglycosides of strophanthidol and strophanthidin obtained by partial synthesis behave differently with respect to Na+,K+-ATPase. Strophanthidol 3,19-bisrhamnoside does not possess the biological activity characteristic for cardiac glycosides. Strophanthidin 3,5-bisrhamnoside and compounds similar to it that are glycosylated at the C-5 hydroxyl possess a reduced capacity for inhibition.
A two-center model of the digitalis receptor is put forward which explains the cause of the different activities of cardenolide glycosides differing from one another by structural elements in the steroid part of the molecule or of the sugar component.
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Institute of Biochemistry, Academy of Sciences of the Uzbek SSR, Tashkent. Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 95–102, January–February, 1978.
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Mirsalikhova, N.M., Pal'yants, N.S. & Abubakirov, N.K. Features of the inhibition of transport Na+, K+-ATPase by cardenolide bisglycosides. Chem Nat Compd 14, 76–81 (1978). https://doi.org/10.1007/BF00565882
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DOI: https://doi.org/10.1007/BF00565882