Methyl 2-amino-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-5-carboxylate
3-Amino-6-(difluoromethyl)-4-(trifluoromethoxy)pyridine-2-carboxylic acid
3-Bromo-5-cyano-2-(trifluoromethoxy)pyridine-4-acetic acid
5-Amino-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-carboxylic acid