dibenzyl 3,3'-dimethyl-4,4'-bis(methoxycarbonylmethyl)pyrromethane-5,5'-dicarboxylate

2,8-bis-(2-acetoxyethyl)-13,17-bis-(2-methoxycarbonylethyl)-3,7,12,18-tetramethylporphin

dibenzyl 4,4'-bis(2-acetoxyethyl)-3,3'-dimethylpyrromethane-5,5'-dicarboxylate

2,8-bis-(2-hydroxyethyl)-13,17-bis-(2-methoxycarbonylethyl)-3,7,12,18-tetramethylporphin

benzyl 5-acetoxymethyl-3-(methoxycarbonylmethyl)-4-methylpyrrole-2-carboxylate