Ethyl 2-(difluoromethyl)-4-nitro-6-(trifluoromethoxy)pyridine-3-carboxylate
2-(Bromomethyl)-4-(difluoromethyl)-6-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
Ethyl 2-(difluoromethyl)-3-nitro-6-(trifluoromethoxy)pyridine-4-carboxylate
3-Methyl-6-nitro-2-(trifluoromethoxy)pyridine-5-sulfonyl chloride