3-(4-bromophenyl)-1H-pyrazole-5-carboxylic acid ethyl ester
ethyl 3-(4-bromophenyl)-1-phenyl-1H-pyrazole-5-carboxylate
diethyl 3-(4-bromophenyl)-1H-pyrrole-2,5-dicarboxylate
ethyl 2-(2-(4-bromophenyl)-1-cyanoindolizin-3-yl)acetate
ethyl 2-(4-bromophenyl)-3-(2-ethoxy-2-oxoethyl)indolizine-1-carboxylate