Ethyl 3-(difluoromethyl)-2-methoxy-5-(trifluoromethyl)pyridine-4-carboxylate
3-(Bromomethyl)-2-(difluoromethyl)-5-methyl-6-nitropyridine
3-(Bromomethyl)-2-(difluoromethyl)-4-methyl-6-nitropyridine
Ethyl 3-(difluoromethyl)-2-methoxy-4-(trifluoromethyl)pyridine-5-carboxylate