Showing structure for (2r)-3-(3,4-dihydroxyphenyl)-2-{[(2e)-3-[(2r,3r)-2-(3,4-dihydroxyphenyl)-7-hydroxy-3-(methoxycarbonyl)-2,3-dihydro-1-benzofuran-4-yl]prop-2-enoyl]oxy}propanoic acid