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