1 251 N-[amino(imino)methyl]-2-(2,5-diphenyl-1h-pyrrol-1-yl)acetamide 1.000 2 411 3-bromo-N-[4-[1-(2-carbamimidamido-2-oxo-ethyl)-5-phenyl-pyrrol-2-yl]phenyl]benzamide 0.706