5-Nitro-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-sulfonamide
Ethyl 2-(difluoromethyl)-5-methoxy-3-(trifluoromethoxy)pyridine-4-carboxylate
3-Nitro-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-6-sulfonamide
Ethyl 6-(difluoromethyl)-4-methoxy-3-(trifluoromethoxy)pyridine-2-carboxylate