SEARCH Articles Figures Tables Pyrrole 3 - acetyl - 2 - methyl - 4 - -, ethyl ester Pyrrole 5-formyl-2-methyl-, ethyl ester Pyrrole esters Pyrrole-3-carboxylic acid, 4-acetyl-1-panisyl-5-methyl ethyl ester Pyrroles 3-methyl