Benzenepropanoic acid, α-[[(2E)-3-[2-(3,4-dihydroxyphenyl)-7-hydroxy-4-benzofuranyl]-1-oxo-2-propen-1-yl]oxy]-3,4-dihydroxy-, (αR)-

Benzenepropanoic acid, α-[[(2E)-3-[2-(3,4-dihydroxyphenyl)-7-hydroxy-4-benzofuranyl]-1-oxo-2-propen-1-yl]oxy]-3,4-dihydroxy-, (αR)-