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

tert-Butyl-3-(2-methoxycarbonylethyl)-4-methyl-5-(2-nitroethyl)-pyrrole-2-carboxylate

{[5-tert-Butoxycarbonyl-4-(2-methoxycarbonyl-ethyl)-3-methyl-1H-pyrrol-2-yl]-cyano-methyl}-triphenyl-phosphonium

5-{2-Amino-1-[(R)-3-methoxycarbonylmethyl-3-methyl-5-oxo-pyrrolidin-(2Z)-ylidene]-ethyl}-3-(2-methoxycarbonyl-ethyl)-4-methyl-1H-pyrrole-2-carboxylic acid tert-butyl ester

(E)-tert-Butyl-3-(2-methoxycarbonylethyl)-4-methyl-5-(2-nitrovinyl)-pyrrole-2-carboxylate

(3R,4E)-9-tert-Butoxycarbonyl-5-cyano-8-(2-methoxycarbonylethyl)-3-methoxycarbonylmethyl-3,7-dimethyl-2,3-dihydrodipyrrin-1(10H)-one