Ethyl 3-bromo-2-(fluoromethyl)-5-(trifluoromethoxy)pyridine-4-carboxylate
5-Iodo-2-(trifluoromethoxy)pyridine-4-sulfonyl chloride
Ethyl 6-(difluoromethyl)-4-methyl-2-(trifluoromethyl)pyridine-3-carboxylate
6-Iodo-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride