5-Bromo-2-(chloromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine
4-Amino-3-(chloromethyl)-2-(trifluoromethoxy)pyridine-5-carboxylic acid
6-Amino-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-methanol
4-Amino-6-(chloromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylic acid