3-Amino-2-(difluoromethyl)-4-hydroxy-5-(trifluoromethoxy)pyridine
4-Amino-6-(chloromethyl)-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine
5-Bromo-3-chloro-2-methyl-4-(trifluoromethoxy)pyridine
6-Amino-3-(difluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine