Methyl 5-(difluoromethyl)-4-nitro-2-(trifluoromethoxy)pyridine-3-carboxylate
4-(Difluoromethyl)-5-nitro-3-(trifluoromethoxy)pyridine-2-acetonitrile
5-Methoxy-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-4-carboxylic acid
4-(Difluoromethyl)-3-nitro-2-(trifluoromethoxy)pyridine-5-acetonitrile