Ethyl 2-(difluoromethyl)-5-nitro-4-(trifluoromethoxy)pyridine-3-carboxylate
3-(Difluoromethyl)-6-methoxy-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
Methyl 3-(fluoromethyl)-5-methoxy-2-(trifluoromethoxy)pyridine-4-acetate
Ethyl 2-(difluoromethyl)-4-nitro-5-(trifluoromethoxy)pyridine-3-carboxylate