4-(2,5-Bis-trifluoromethyl-phenyl)-N-hydroxy-pyridine-2-carboxamidine

N-Hydroxy-4-(2-trifluoromethyl-phenoxy)-pyridine-2-carboxamidine

N-Hydroxy-4-(2-trifluoromethoxy-phenyl)-pyridine-2-carboxamidine

4-(2-Fluoro-3-trifluoromethyl-phenyl)-N-hydroxy-pyridine-2-carboxamidine

4-(4-Fluoro-2-trifluoromethyl-phenyl)-N-hydroxy-pyridine-2-carboxamidine

3,6,7-Trimethyl-quinoxaline-2-carboxylic acid ethyl ester

1-(3,7-Dimethyl-quinoxalin-2-yl)-ethanone

3,7-Dimethyl-quinoxaline-2-carboxylic acid

6,7-Dimethyl-3-phenyl-quinoxaline-2-carboxylic acid

2-Chloro-5-cyano-benzenesulfonamide

1-Methyl-1H-pyrazole-5-sulfonamide