Ethyl 5-(bromomethyl)-2-methoxy-3-(trifluoromethoxy)pyridine-4-acetate
4-(Fluoromethyl)-5-methoxy-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
Ethyl 5-(bromomethyl)-3-methoxy-4-(trifluoromethoxy)pyridine-2-acetate
4-(Fluoromethyl)-3-methoxy-5-(trifluoromethoxy)pyridine-2-carboxaldehyde