2-[5-methoxy-2-methyl-1-(4-methylbenzoyl)indol-3-yl]acetic acid
2-[5-methoxy-2-methyl-1-[(4-methylphenyl)-oxomethyl]-3-indolyl]acetic acid
2-[5-methoxy-2-methyl-1-(4-methylphenyl)carbonyl-indol-3-yl]ethanoic acid