(5Z,10Z,14Z,19Z)-17-(2-Chloro-ethyl)-7-[1,3]dioxolan-2-yl-8,12-bis-(2-methoxycarbonyl-ethyl)-3,13,18-trimethyl-porphyrin-2-carboxylic acid ethyl ester

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

benzyl 4,3'-di(2-acetoxyethyl)-5'-t-butoxycarbonyl-3,4'-dimethyl-2,2'-dipyrrylmethane-5-carboxylate

3,3'-dimethyl-4,4'-bis-(2-acetoxyethyl)pyrromethane-5,5'-dicarboxylic acid

vinylporphyrin