5-((5-(tert-butoxycarbonyl)-3-(2-methoxy-2-oxoethyl)-4-(3-methoxy-3-oxopropyl)-1H-pyrrol-2-yl)methyl)-4-(2-methoxy-2-oxoethyl)-3-(3-methoxy-3-oxopropyl)-1H-pyrrole-2-carboxylic acid

tert-butyl 3,3'-bis[(methoxycarbonyl)methyl]-4,4'-bis[β-(methoxycarbonyl)ethyl]-5-[(benzyloxy)carbonyl]dipyrrylmethane-5-carboxylate

benzyl 4-(2-methoxy-2-oxoethyl)-3-(3-methoxy-3-oxopropyl)-1H-pyrrole-2-carboxylate

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

3,3',3'',3'''-(19-aminomethyl-3,7,12,17-tetrakis-carboxymethyl-5,10,15,22,23,24-hexahydro-21H-biline-2,8,13,18-tetrayl)-tetrakis-propionic acid