p. 1767 - 1776
(2007/10/03)4-[4-(3-Benzyloxycarbonylamino-benzoyl)-5-ethyl-1-methyl-1H-pyrrol-2-yl]-butyric acid ethyl ester
(E)-4-[5-Ethyl-1-methyl-4-(3-nitro-benzoyl)-1H-pyrrol-2-yl]-but-2-enoic acid ethyl ester
4-[4-(3-Amino-benzoyl)-5-ethyl-1-methyl-1H-pyrrol-2-yl]-butyric acid ethyl ester
5-Ethyl-1-methyl-4-(3-nitro-benzoyl)-1H-pyrrole-2-carbaldehyde
5-Ethyl-4-(3-nitro-benzoyl)-1H-pyrrole-2-carbaldehyde