tert-Butyl 3-(2-Chloroethyl)-1,4-dimethyl-5-iodopyrrole-2-carboxylate

tert-Butyl 3-(2-Chloroethyl)-1,4-dimethylpyrrole-2-carboxylate

tert-Butyl 5-Iodo-3-(2-methoxycarbonylethyl)-1,4-dimethylpyrrole-2-carboxylate

3-(2-Methoxycarbonyl-ethyl)-1,4-dimethyl-1H-pyrrole-2,5-dicarboxylic acid 2-tert-butyl ester

Benzyl 5-tert-Butoxycarbonyl-4-(2-chloroethyl)-1,3-dimethylpyrrole-2-carboxylate