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