5-Hydroxy-2-nitro-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
2-(Chloromethyl)-3-iodo-5-methoxy-6-(trifluoromethoxy)pyridine
4-Hydroxy-5-nitro-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
Methyl 5-(difluoromethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine-4-carboxylate