4-Bromo-6-(difluoromethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine
4-Bromo-2-(difluoromethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine
Methyl 5-amino-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylate
2-Amino-3-(chloromethyl)-5-(trifluoromethoxy)pyridine-4-acetic acid