Methyl 2-(difluoromethyl)-3-nitro-6-(trifluoromethoxy)pyridine-5-carboxylate
3-(Bromomethyl)-5-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-carboxaldehyde
Methyl 2-(difluoromethyl)-3-nitro-5-(trifluoromethoxy)pyridine-4-carboxylate
3-(Difluoromethyl)-6-nitro-2-(trifluoromethoxy)pyridine-4-carboxylic acid