Methyl 4-(chloromethyl)-3-methoxy-5-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 4-(chloromethyl)-6-methoxy-2-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 3-(difluoromethyl)-5-methoxy-4-(trifluoromethoxy)pyridine-2-acetate
Methyl 5-(difluoromethyl)-4-methoxy-2-(trifluoromethoxy)pyridine-3-acetate