3-Amino-2-chloro-4-(difluoromethyl)-6-(trifluoromethoxy)pyridine
3-Amino-2-chloro-6-(fluoromethyl)-4-(trifluoromethoxy)pyridine
2-Amino-6-chloro-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine
2-Amino-6-chloro-3-(difluoromethyl)-5-(trifluoromethoxy)pyridine