(1S,2R,3S,4S,5S)-5-{[({2-chloro-5-[(1S,2S,3S,4R,5S)-2,3,4-trihydroxy-1-(hydroxymethyl)-6,8-dioxabicyclo[3.2.1]octan-5-yl]phenyl}(4-ethoxyphenyl)methyl)oxy]methyl}-1-{4-chloro-3-[(4-ethoxyphenyl)methyl]phenyl}-7,8-dioxabicyclo[3.2.1]octane-2,3,4-triol