4-Cyano-3-(difluoromethyl)-5-nitropyridine-2-carboxylic acid
3-Bromo-6-(difluoromethyl)-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
2-Amino-3-methyl-4-(trifluoromethoxy)pyridine-5-sulfonamide
4-Amino-3-(aminomethyl)-2-(difluoromethyl)pyridine-5-carboxylic acid