2-[[2-[(3-chloro-4-fluorophenyl)amino]acetyl]amino]benzoic acid 2-[[2-[(3-chloro-4-fluoro-phenyl)amino]acetyl]amino]benzoic acid 2-[[2-[(3-chloro-4-fluorophenyl)amino]-1-oxoethyl]amino]benzoic acid 2-[2-[(3-chloro-4-fluoro-phenyl)amino]ethanoylamino]benzoic acid