2,5-Dichloro-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
Methyl 2-bromo-5-nitro-4-(trifluoromethoxy)pyridine-3-carboxylate
6-Cyano-4-iodo-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
2-(Difluoromethyl)-5-nitro-6-(trifluoromethyl)pyridine-3-sulfonyl chloride