2-Amino-3-cyano-4-(difluoromethyl)-5-(trifluoromethyl)pyridine
6-Amino-3-chloro-4-(difluoromethyl)-2-(trifluoromethyl)pyridine
2-Amino-5-(difluoromethyl)-3-iodo-4-(trifluoromethyl)pyridine
6-Amino-4-(difluoromethyl)-3-iodo-2-(trifluoromethyl)pyridine