2-(Difluoromethyl)-5-methoxy-6-nitro-3-(trifluoromethyl)pyridine
6-(Difluoromethyl)-3-methoxy-4-nitro-2-(trifluoromethyl)pyridine
2-(Difluoromethyl)-5-methoxy-3-nitro-6-(trifluoromethyl)pyridine
3-(Difluoromethyl)-2-methoxy-5-nitropyridine-4-carboxaldehyde