3-Nitro-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-sulfonamide
3-(Difluoromethyl)-4-methoxy-2-(trifluoromethoxy)pyridine-5-carboxaldehyde
6-Methyl-4-nitro-2-(trifluoromethoxy)pyridine-3-carboxylic acid
2-(Aminomethyl)-5-(difluoromethyl)-6-(trifluoromethoxy)pyridine-3-carboxylic acid