3-(Difluoromethyl)-6-methyl-4-(trifluoromethoxy)pyridine-2-carboxaldehyde
4-Amino-3-methoxy-2-(trifluoromethoxy)pyridine-5-carboxylic acid
4-Amino-6-methoxy-3-(trifluoromethoxy)pyridine-2-carboxylic acid
2-Amino-3-chloro-6-(trifluoromethoxy)pyridine-5-acetic acid