6-(Fluoromethyl)-3-methoxy-4-(trifluoromethoxy)pyridine-2-carboxylic acid
5-(Bromomethyl)-3-methyl-4-nitro-2-(trifluoromethoxy)pyridine
2-(Fluoromethyl)-5-methoxy-3-(trifluoromethoxy)pyridine-4-carboxylic acid
3-(Bromomethyl)-5-methyl-2-nitro-4-(trifluoromethoxy)pyridine