4-Amino-3-(difluoromethyl)-5-(trifluoromethoxy)pyridine-2-acetonitrile
3-Amino-4-methyl-5-(trifluoromethoxy)pyridine-2-carboxylic acid
4-Amino-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-3-acetonitrile
3-Amino-2-methyl-6-(trifluoromethoxy)pyridine-5-carboxylic acid