2,4-Dihydroxy-6-methylbenzoic acid (R)-7,8-dihydro-7-methyl-6,8-dioxo-3-[(E)-3-hydroxy-1-propenyl]-6H-2-benzopyran-7β-yl ester

2,4-Dihydroxy-6-methylbenzoic acid [(R)-3-[(E)-3-hydroxy-1-propenyl]-7,8-dihydro-6,8-dioxo-7-methyl-6H-2-benzopyran-7β-yl] ester