Methyl 2-(difluoromethyl)-4-nitro-5-(trifluoromethoxy)pyridine-3-acetate
Methyl 2-(difluoromethyl)-3-nitro-6-(trifluoromethoxy)pyridine-5-acetate
Methyl 2-(difluoromethyl)-3-nitro-5-(trifluoromethoxy)pyridine-4-acetate
2-(Aminomethyl)-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-6-carboxaldehyde