[(1R,2R,4R,5R,6S,10R)-5-Hydroxy-10-[(2R,3S,4R,5R,6S)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-3,9-dioxatricyclo[4.4.0.02,4]dec-7-en-2-yl]methyl (E)-3-(4-methoxyphenyl)prop-2-enoate