Showing structure for 3-(3,4-dihydroxyphenyl)-1-methoxy-1-oxopropan-2-yl 3-[2-(3,4-dihydroxyphenyl)-3-({[3-(3,4-dihydroxyphenyl)-1-methoxy-1-oxopropan-2-yl]oxy}carbonyl)-7-hydroxy-2,3-dihydro-1-benzofuran-4-yl]prop-2-enoate