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

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

{5-((E)-4-Hydroxy-3-methyl-but-2-enyloxy)-2-[3-(4-methoxycarbonylmethoxy-phenyl)-propionyl]-phenoxy}-acetic acid methyl ester

4'-hydroxy-2',4-bis(methoxycarbonylmethoxy)dihydrochalcone

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