diethyl 2,4,6-trihydroxyisophthalate

ethyl 5-chloro-2-(ethoxycarbonyl)-3-oxo-5-phenylpent-4-enoate

3β-hydroxy-24-nor-chol-5-ene-23,23-dicarboxylic acid

indan-2-ylmethyl-malonic acid diethyl ester

undecane-1,1,11-tricarboxylic acid-1,1-diethyl ester-11-methyl ester