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