6-Amino-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-acetic acid
2-Amino-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetic acid
2-Amino-4-methyl-5-(trifluoromethoxy)pyridine-3-sulfonamide
4-Amino-2-nitro-6-(trifluoromethoxy)pyridine-3-carboxylic acid