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