2-Bromo-5-(chloromethyl)-3-(difluoromethyl)pyridine-4-carboxylic acid
3-Amino-2-methoxy-5-nitro-6-(trifluoromethoxy)pyridine
5-(Fluoromethyl)-3-iodo-4-(trifluoromethoxy)pyridine-2-carboxylic acid
5-Hydroxy-2-methyl-3-nitro-6-(trifluoromethoxy)pyridine