2-(2-(1-methyl-5-(4-methylbenzoyl)-1H-pyrrol-2-yl)acetamido)acetic acid; 2-[[2-[1-methyl-5-(4-methylbenzoyl)pyrrol-2-yl]acetyl]amino]acetic acid;2-[[2-[1-methyl-5-[(4-methylphenyl)-oxomethyl]-2-pyrrolyl]-1-oxoethyl]amino]acetic acid;2-[2-[1-methyl-5-(4-methylphenyl)carbonyl-pyrrol-2-yl]ethanoylamino]ethanoic acid;N-{[1-Methyl-5-(4-methylbenzoyl)-1H-pyrrol-2-yl]acetyl}glycine
