Methyl 6-(difluoromethyl)-3-methoxy-4-(trifluoromethyl)pyridine-2-carboxylate
3-(Difluoromethyl)-2-methoxy-4-(trifluoromethyl)pyridine-5-methanol
Methyl 2-(difluoromethyl)-5-methoxy-3-(trifluoromethyl)pyridine-6-carboxylate
5-(Difluoromethyl)-3-methoxy-2-(trifluoromethyl)pyridine-4-acetic acid