Showing NMR Assignment for ethyl 4-(7-acetyl-4,6-dihydroxy-3,5-dimethyl-2-oxo-2,3-dihydrobenzofuran-3-yl)-4-(7-acetyl-4,6-dihydroxy-3,5-dimethylbenzofuran-2-yl)-3-oxobutanoate (Frequency: 100 MHz)