Showing structure for methyl 2-[(1s,2s,4ar,5r,8r,8as)-1-hydroxy-5-{[(2r)-2-hydroxy-3-(4-hydroxyphenyl)propanoyl]oxy}-4a-methyl-8-({[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}methyl)-octahydro-1h-naphthalen-2-yl]prop-2-enoate