5-(Chloromethyl)-2-(difluoromethyl)-3-methoxy-4-nitropyridine
4-(Chloromethyl)-3-(difluoromethyl)-6-methoxy-2-nitropyridine
2-(Difluoromethyl)-5-methoxy-4-(trifluoromethyl)pyridine-3-acetic acid
2-(Difluoromethyl)-5-methoxy-3-(trifluoromethyl)pyridine-4-acetic acid