123562-49-2

(1R)-8β-[6-O-[(E)-3-(3,4-Dihydroxyphenyl)-1-oxo-2-propenyl]-β-D-glucopyranosyloxy]-4,4aβ,8,8aβ-tetrahydro-1β-methyl-3-oxo-1H,3H-pyrano[3,4-c]pyran-5-carboxylic acid