(2''S,3''S) 5-O-allyl-3-O-(6'-O-allyl-2'-O-benzyl-3',4'-di-O-(2'',3''-dimethoxybutane-2'',3''-diyl)-α-D-glucopyranosyl)-1,2-O-isopropylidene-α-D-ribofuranoside

(2''S,3''S) 3-O-(2'-O-benzyl-3',4'-di-O-(2'',3''-dimethoxybutane-2'',3''-diyl)-α-D-glucopyranosyl)-5,6'-di-O-(butane-1,4-diyl)-1,2-O-isopropylidene-α-D-ribofuranoside