Ethyl 2-(difluoromethyl)-5-methyl-4-nitropyridine-3-acetate
3-(Difluoromethyl)-5-methoxy-2-(trifluoromethyl)pyridine-6-acetonitrile
Ethyl 2-(difluoromethyl)-4-methyl-6-nitropyridine-3-acetate
5-(Difluoromethyl)-4-methoxy-2-(trifluoromethyl)pyridine-3-acetonitrile