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