Abstract: | 4′-Demethylepipodophyllotoxin-β-D -glucopyranoside (VIII) and 4′-demethylepipodophyllotoxin-β-D -galactopyranoside (X) have been synthesized by reaction of the aglycones III and IV with the corresponding tetra-O-acetyl-β-D -hexopyranose in the presence of BF3-etherate. The suggested configurations at C-1 of the aglycone moiety in the new glycosides could be confirmed by NMR.-spectra. |