5-Amino-3-(difluoromethyl)-4-fluoropyridine-2-carboxylic acid
5-Amino-2-methoxy-3-(trifluoromethoxy)pyridine-4-carbonyl chloride
5-Bromo-2-(difluoromethyl)-3-nitropyridine-6-carbonyl chloride
5-Amino-3-(chloromethyl)-2-(difluoromethyl)-4-iodopyridine