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