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