5-tert-<(butyloxy)carbonyl>-3',4-bis(2-chloroethyl)-3,4'-dimethyldipyrrylmethane-5'-carboxylic acid

3-(2-chloroethyl)-2-((4-(2-chloroethyl)-3-methyl-1H-pyrrol-2-yl)methyl)-4-methyl-1H-pyrrole

3-(2-Chloro-ethyl)-5-{3-(2-chloro-ethyl)-5-[4-(2-methoxycarbonyl-ethyl)-3,5-dimethyl-pyrrol-(2Z)-ylidenemethyl]-4-methyl-1H-pyrrol-2-ylmethyl}-4-methyl-1H-pyrrole-2-carboxylic acid tert-butyl ester; hydrobromide