4-Methyl-2-(toluene-4-sulfonyl)-3-(2-p-tolylsulfanyl-ethyl)-1H-pyrrole

2-Bromo-4-methyl-5-(toluene-4-sulfonyl)-3-(2-p-tolylsulfanyl-ethyl)-1H-pyrrole

3-(2-Allyloxycarbonyl-ethyl)-4-methyl-5-[3-methyl-5-oxo-4-(2-p-tolylsulfanyl-ethyl)-1,5-dihydro-pyrrol-(2Z)-ylidenemethyl]-1H-pyrrole-2-carboxylic acid tert-butyl ester

t-butyl 3-(2-allyloxycarbonylethyl)-4-methyl-5-({4-methyl-5-oxo-3-[2-(p-tolylthio)ethyl]-1H-pyrrol-2(5H)-ylidene}methyl)-1H-pyrrole-2-carboxylate