3-(8,12,18-triethyl-3,7,13,17-tetramethyl-21H,23H-porphin-2-yl)-propionic acid methyl ester

4-Ethyl-5-(3-ethyl-4-methyl-1H-pyrrol-2-ylmethyl)-3-methyl-1H-pyrrole-2-carboxylic acid tert-butyl ester

t-butyl 3,3'-diethyl-4,4'-dimethyl-5-formyl-dipyrrylmethane-5-carboxylate

3,13,17-triethyl-7-(ethoxycarbonylethyl)-2,8,12,18-tetramethyl-1,19-bilindione

7,13,17-triethyl-2-(ethoxycarbonylethyl)-3,8,12,18-tetramethyl-1,19-bilindione