Methyl 2-chloro-3-methoxypyridine-4-acetate
Methyl 3-chloro-2-methyl-4-(trifluoromethoxy)pyridine-5-acetate
Methyl 3-(difluoromethyl)-4-methyl-5-(trifluoromethoxy)pyridine-2-acetate
Methyl 3-(difluoromethyl)-2-methyl-6-(trifluoromethoxy)pyridine-5-acetate