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