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