1 OAI 6-(oxalyl-amino)-1h-indole-5-carboxylic acid 1.000 2 761 3-(oxalyl-amino)-naphthalene-2-carboxylic acid 0.850 3 OBA 2-(oxalyl-amino)-benzoic acid 0.833 4 OTA 2-(oxalyl-amino)-4,5,6,7-tetrahydro-thieno[2,3-C]pyridine-3-carboxylic acid 0.800 5 878 5-iodo-2-(oxalyl-amino)-benzoic acid 0.789 6 3RG 2-[(carboxymethyl)amino]benzoic acid 0.778 7 ZZ8 2-(acetylamino)benzoic acid 0.722