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