7-{2-[3-(4-Chloro-phenyl)-propionyl]-thiophen-3-yl}-heptanoic acid ethyl ester
7-{5-[3-(4-Chloro-phenyl)-propionyl]-thiophen-3-yl}-heptanoic acid ethyl ester
7-[2-(3-Phenyl-propionyl)-thiophen-3-yl]-heptanoic acid ethyl ester
ethyl 7-<2-bromo-5-(3-phenylpropionyl)-3-thienyl>heptanoate
ethyl 7-<5-(3-phenylpropionyl)-3-thienyl>heptanoate