Methyl 2-bromo-3-chloro-4-(trifluoromethoxy)pyridine-6-acetate
Methyl 5-amino-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-acetate
Methyl 6-amino-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-acetate
Methyl 3-amino-5-(fluoromethyl)-4-(trifluoromethoxy)pyridine-2-acetate