5-(Difluoromethyl)-4-nitro-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
Methyl 4-(bromomethyl)-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-acetate
3-(Difluoromethyl)-4-nitro-5-(trifluoromethoxy)pyridine-2-carboxaldehyde
Methyl 4-(bromomethyl)-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-2-acetate