1 F12 2-(acetylamino)thiophene-3-carboxylic acid 1.000 2 ZZ8 2-(acetylamino)benzoic acid 0.786 3 OK7 N-(thiophen-2-yl)acetamide 0.750 4 55D 2-(butanoylamino)thiophene-3-carboxamide 0.733 5 8BC 2-acetamido-6-fluorobenzoic acid 0.733 6 LGR 2-[acetyl(methyl)amino]benzoic acid 0.733