2-Amino-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-5-carboxylic acid
2-Bromo-6-(difluoromethyl)-4-iodo-3-(trifluoromethoxy)pyridine
3-Bromo-6-chloro-4-(trifluoromethoxy)pyridine-2-carboxylic acid
Methyl 3-bromo-2-cyano-4-(trifluoromethoxy)pyridine-5-carboxylate