(E)-4-{3-Methoxycarbonylmethoxy-4-[3-(4-methoxycarbonylmethoxy-phenyl)-propionyl]-phenoxy}-2-methyl-but-2-enoic acid methyl ester

[2-[3-(4-Methoxycarbonylmethoxy-phenyl)-propionyl]-5-(3-methyl-but-2-enyloxy)-phenoxy]-acetic acid methyl ester

2',4-bis(carboxymethoxy)-4'-(3-methyl-2-butenyloxy)dihydrochalcone