3-[(5Z,10Z,14Z,19E)-7-(2-Acetoxy-ethyl)-12-(2-chloro-ethyl)-20-methanesulfonyloxy-18-(2-methoxycarbonyl-ethyl)-3,8,13,17-tetramethyl-porphyrin-2-yl]-propionic acid methyl ester

benzyl 3-(β-acetoxyethyl)-4,5-dimethyl-2-pyrrolecarboxylate

ethyl 3-(ethoxycarbonylmethyl)-4,5-dimethylpyrrole-2-carboxylate

benzyl 3-(2-acetoxyethyl)-4-methylpyrrole-2-carboxylate