3-Amino-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-6-acetic acid
3-Bromo-6-cyano-2-(trifluoromethoxy)pyridine-5-acetic acid
4-Amino-5-(fluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylic acid
Ethyl 2-bromo-4-iodo-6-(trifluoromethoxy)pyridine-3-carboxylate