Abstract
Two new glycosides have been isolated from the MeOH extract of the stem wood and stem bark of an Ecuadorian plant Chamaedorea linearis, and their structures have been determined by spectroscopic means and X-ray analysis of the aglycone to be 1-O-[beta-L-fucopyranosyl-(4'-sulfate)]-25R,5 alpha-spirostane-1 beta, 3 beta-diol [1]) and 1-O-[beta-L-fucopyranosyl-(4'-sulfate)]-25R,5 alpha-spirostane-1 alpha, 3 beta-diol [2]. These compounds were identified in a screen for inhibitors of recombinational DNA repair. Cytotoxic activity was also demonstrated.
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