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The structure of novel digitoxin analogs. (A) The common structural motif of a neoglycoside molecule developed by Langenhan et al. and characterized by a tertiary amine bond linking the saccharide moiety to the steroidal nucleus. (B) The common structural motif of a digitoxin O-saccharide molecule developed by O'Doherty et al. and characterized by an ether bond linking the saccharide moiety to the steroidal nucleus.
