Methyl 6-cyano-2-iodo-3-(trifluoromethoxy)pyridine-4-carboxylate
2-Cyano-3-nitro-6-(trifluoromethoxy)pyridine-5-sulfonyl chloride
4-Chloro-5-(difluoromethyl)-3-methoxy-2-(trifluoromethoxy)pyridine
Methyl 2-cyano-6-iodo-4-(trifluoromethoxy)pyridine-3-carboxylate