Methyl 6-chloro-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-acetate
Methyl 2-chloro-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetate
Ethyl 5-fluoro-3-methoxy-4-(trifluoromethoxy)pyridine-2-acetate
Methyl 6-chloro-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-2-acetate