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