Showing structure for 4-[(2-acetyl-6,7-dihydroxy-3,4-dihydro-1h-isoquinolin-1-yl)methyl]-5-ethenyl-6-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-5,6-dihydro-4h-pyran-3-carboxylic acid