4-Nitro-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride
4-(Chloromethyl)-5-methyl-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
4-(Chloromethyl)-3-methyl-5-(trifluoromethoxy)pyridine-2-carboxaldehyde
4-(Chloromethyl)-6-methyl-2-(trifluoromethoxy)pyridine-3-carboxaldehyde