(2S,3R,4S,5R,6R)-6-(acetoxymethyl)-2-(4-chloro-3-(4-ethoxybenzyl)phenyl)-2-(((2R,3R,4S,5R,6S)-3,4,5-triacetoxy-6-(4-chloro-3-(4-ethoxybenzyl)phenyl)-6-methoxytetrahydro-2H-pyran-2-yl)methoxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate